ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters PRODUCT OVERVIEW The low-cost ADS-943 is a 14-bit, 3MHz Digital input and output levels are TTL. The unit sampling A/D converter optimized to meet the is edge-triggered, requiring only the rising edge demanding dynamic-range and sampling-rate of a start convert pulse to initiate a conversion. requirements of contemporary digital telecommu- The device is offered with a bipolar input range nications applications. The ADS-943's outstanding of ±2V. Models are available in commercial (0 to dynamic performance is evidenced by a peak har- +70°C), industrial (–40 to +100°C), or HI-REL (–55 monic specifi cation of –83dB and a signal-to-noise to +125°C) operating temperature ranges. A pro- ratio (SNR) of 79dB. Additionally, the ADS-943 prietary, auto-calibrating, error-correcting circuit easily achieves the 2.2MHz minimum sampling allows the device to achieve specifi ed performance rate required by digital receivers in certain ADSL, over the full HI-REL temperature range. HDSL and ATM applications. The ADS-943 also addresses size and power constraints normally associated with these types of applications. This FEATURES device requires just ±5V supplies, dissipates 1.7 INPUT/OUTPUT CONNECTIONS Watts, and is packaged in a very small 24-pin DDIP. „ 14-bit resolution PIN FUNCTION PIN FUNCTION Although optimized for frequency-domain „ 3MHz minimum sampling rate 1 BIT1 (MSB) 24 ANALOG GROUND applications, the ADS-943's DNL and noise speci- „ 2 BIT 2 23 OFFSET ADJUST Ideal for both frequency and time-domain fi cations are also outstanding, thereby making 3 BIT 3 22 +5V ANALOG SUPPLY applications it an equally impressive device for time-domain 4 BIT 4 21 ANALOG INPUT „ Excellent peak harmonics, –83dB applications (graphic and medical imaging, pro- 5 BIT 5 20 –5V SUPPLY cess control, etc.). In fact, the ADS-943 guarantees „ Excellent signal-to-noise ratio, 79dB 6 BIT 6 19 ANALOG GROUND no missing codes to the 14-bit level over the full „ 7 BIT 7 18 START CONVERT No missing codes over full HI-REL temperature HI-REL operating temperature range. 8 BIT 8 17 EOC range The functionally complete ADS-943 contains a 9 BIT 9 16 BIT 14 (LSB) „ ±5V supplies, 1.7 Watts fast-settling sample-hold amplifi er, a subranging 10 BIT 10 15 BIT 13 „ Small, 24-pin ceramic DDIP or SMT (two-pass) A/D converter, an internal reference, 11 BIT 11 14 DIGITAL GROUND „ timing/control logic, and error-correction circuitry. 12 BIT 12 13 +5V DIGITAL SUPPLY Low cost BLOCK DIAGRAM OFFSET ADJUST 23 BUFFER 16 BIT 14 (LSB) ANALOG INPUT 21 – 15 BIT 13 S/H FLASH + 12 B IT12 ADC 1 11 BIT 11 10 BIT 10 POWER AND GROUNDING 9 BIT 9 REF 8 BIT 8 +5V ANALOG SUPPLY 22 DAC 7 BIT 7 +5V DIGITAL SUPPLY 13 3 6 BIT 6 DIGITAL GROUND 14 5 BIT 5 –5V SUPPLY 20 4 BIT 4 FLASH 3 BIT 3 ANALOG GROUND 19, 24 ADC 2 2 BIT 2 AMP 1 BIT 1 (MSB) START CONVERT 18 TIMING AND CONTROL LOGIC EOC 17 Figure 1. ADS-943 Functional Block Diagram DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 1 of 9 REGISTER REGISTER DIGITAL CORRECTION LOGIC OUTPUT REGISTER ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters ABSOLUTE MAXIMUM RATINGS PHYSICAL/ENVIRONMENTAL PARAMETERS LIMITS UNITS PARAMETERS MIN. TYP. MAX. UNITS +12V/+15V Supply (Pin 22) 0 to +6 Volts Operating Temp. Range, Case –12V/–15V Supply (Pin 24) 0 to –6 Volts ADS-943MC, GC, MC-C, GC-C 0 — +70 °C +5V Supply (Pin 13) 0 to +6 Volts ADS-943ME, GE, ME-C, GE-C –40 — +100 °C Digital Input (Pin 16) –0.3 to +VDD +0.3 Volts ADS-943MM, GM, MM-C, GM-C –55 — +125 °C Analog Input (Pin 20) ±5 Volts ADS-943MM-QL, 883, MM-QL-C, 883-C –55 — +125 °C Lead Temperature (10 seconds) +300 °C Thermal Impedance θjc — 6 — °C/Watt θca — 24 — °C/Watt Storage Temperature Range –65 — +150 °C Package Type 24-pin, metal-sealed, ceramic DDIP or SMT Weight 0.42 ounces (12 grams) FUNCTIONAL SPECIFICATIONS (TA = +25°C, +VDD = +5V, 3MHz sampling rate, and a minimum 3 minute warmup ➀ unless otherwise specifi ed.) +25°C 0 TO +70°C –55 TO +125°C ANALOG INPUT MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. UNITS Input Voltage Range d — ±2 — — ±2 — — ±2 — Volts Input Resistance — 280 — — 280 — — 280 — Ω Input Capacitance — 6 15 — 6 15 — 6 15 pF DIGITAL INPUT Logic Levels Logic "1" +2.0 — — +2.0 — — +2.0 — — Volts Logic "0" — — +0.8 — — +0.8 — — +0.8 Volts Logic Loading "1" — — +20 — — +20 — — +20 μA Logic Loading "0" — — –20 — — –20 — — –20 μA Start Convert Positive Pulse Width ➂ 10 20 — 10 20 — 10 20 — STATIC PERFORMANCE Resolution — 14 — — 14 — — 14 — Bits Integral Nonlinearity (fi n = 10kHz) — ±0.75 — — ±0.75 — — ±1 — LSB Differential Nonlinearity (fi n = 10kHz) –0.95 ±0.5 +1.25 –0.95 ±0.5 +1.25 –0.95 ±0.75 +1.5 LSB Full Scale Absolute Accuracy — ±0.15 ±0.4 — ±0.15 ±0.4 — ±0.4 ±0.6 %FSR Bipolar Zero Error (Tech Note 2) — ±0.1 ±0.3 — ±0.1 ±0.3 — ±0.3 ±0.6 %FSR Gain Error (Tech Note 2) — ±0.2 ±0.5 — ±0.2 ±0.5 — ±0.4 ±1.25 % No Missing Codes (fi n = 10kHz) 14 — — 14 — — 14 — — Bits No Missing Codes (fin = 10kHz) 14 — — 14 — — 14 — — Bits DYNAMIC PERFORMANCE Peak Harmonics (–0.5dB) dc to 500kHz — –83 –77 — –83 –77 — –81 –75 dB 500kHz to 1MHz — –83 –77 — –83 –77 — –81 –75 dB 1MHz to 1.5MHz — –83 –77 — –83 –77 — –81 –75 dB Total Harmonic Distortion (–0.5dB) dc to 500kHz — –80 –76 — –80 –76 — –78 –74 dB 500kHz to 1MHz — –80 –76 — –80 –76 — –77 –73 dB 1MHz to 1.5MHz — –80 –76 — –80 –76 — –77 –73 dB Signal-to-Noise Ratio (w/o distortion, –0.5dB) dc to 500kHz 76 79 — 76 79 — 75 78 — dB 500kHz to 1MHz 76 79 — 76 79 — 74 77 — dB 1MHz to 1.5MHz 75 78 — 75 78 — 74 77 — dB Signal-to-Noise Ratio f (& distortion, –0.5dB) dc to 500kHz 73 77 — 73 77 — 71 75 — dB 500kHz to 1MHz 73 77 — 73 77 — 71 75 — dB 1MHz to 1.5MHz 73 77 — 73 77 — 71 74 — dB Noise — 125 — — 125 — — 125 — μVrms Two-Tone Intermodulation Distortion (fi n = 975kHz, 1.2MHz, fs = 3MHz, –0.5dB) — –82 — — –82 — — –82 — dB Input Bandwidth (–3dB) Small Signal (–20dB input) — 30 — — 30 — — 30 — MHz Large Signal (–0dB input) — 10 — — 10 — — 10 — MHz Feedthrough Rejection (fi n = 1.5MHz) — 85 — — 85 — — 85 — dB Slew Rate — ±400 — — ±400 — — ±400 — V/μs Aperture Delay Time — +5 — — +5 — — +5 — ns Aperture Uncertainty — 2 — — 2 — — 2 — ps rms S/H Acquisition Time ( to ±0.003%FSR, 4V step) — 208 215 — 208 215 — 208 215 ns Overvoltage Recovery Time ➄ — 100 333 — 100 333 — 100 333 ns A/D Conversion Rate 3 — — 3 — — 3 — — MHz DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 2 of 9 ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters +25°C 0 TO +70°C –55 TO +125°C DIGITAL OUTPUTS MIN. TYP. MAX. MIN. TYP. MAX. MIN. TYP. MAX. UNITS Logic Levels Logic "1" +2.4 — — +2.4 — — +2.4 — — Volts Logic "0" — — +0.4 — — +0.4 — — +0.4 Volts Logic Loading "1" — — –4 — — –4 — — –4 mA Logic Loading "0" — — +4 — — +4 — — +4 mA Output Coding Offset Binary POWER REQUIREMENTS Power Supply Ranges➅ +5V Supply +4.75 +5.0 +5.25 +4.75 +5.0 +5.25 +4.9 +5.0 +5.25 Volts –5V Supply –4.75 –5.0 –5.25 –4.75 –5.0 –5.25 –4.9 –5.0 –5.25 Volts Power Supply Currents +5V Supply — +210 +230 — +210 +230 — +210 +230 mA –5V Supply — –180 –195 — –180 –195 — –180 –195 mA Power Dissipation — 1.7 2.0 — 1.7 2.0 — 1.7 2.0 Watts Power Supply Rejection — — ±0.05 — — ±0.05 — — ±0.05 %FSR/%V Footnotes: ➃ Effective bits is equal to: Full Scale Amplitude (SNR + Distortion) – 1.76 + 20 log ➀ All power supplies must be on before applying a start convert pulse. All supplies and Actual Input Amplitude the clock (START CONVERT) must be present during warmup periods. The device 6.02 must be continuously converting during this time. ➁ Contact DATEL for availability of other input voltage ranges. ➄ This is the time required before the A/D output data is valid after the analog input is ➂ A 3MHz clock with a 20nsec positive pulse width is used for all production testing. back within the speciŢ ed range. This time is only guaranteed if the input does not exceed ±2.2V (S/H Saturation Voltage). When sampling at 3MHz, the start convert pulse must be between 10 and 110nsec wide or between 160 and 300nsec wide. The falling edge must not occur between 110 ➅ The minimum supply voltages of +4.9V and –4.9V for ±VDD are required for –55°C and 160nsec. For lower sampling rates, wider start pulses may be used. operation only. The minumum limits are +4.75V and –4.75V when operating at +125°C. TECHNICAL NOTES 1. Obtaining fully specifi ed performance from the ADS-943 requires care- can be reduced to zero using the adjustment circuitry shown in Figures 2 ful attention to pc-card layout and power supply decoupling. The device's and 3. When using this circuitry, or any similar offset and gain-calibration analog and digital ground systems are connected to each other internally. hardware, make adjustments following warmup. To avoid interaction, For optimal performance, tie all ground pins (14, 19 and 24) directly to a always adjust offset before gain. large analog ground plane beneath the package. 3. Applying a start convert pulse while a conversion is in progress (EOC = Bypass all power supplies to ground with 4.7μF tantalum capacitors in logic "1") will initiate a new and inaccurate conversion cycle. Data for the parallel with 0.1μF ceramic capacitors. Locate the bypass capacitors as interrupted and subsequent conversions will be invalid. close to the unit as possible. 4. A passive bandpass fi lter is used at the input of the A/D for all production 2. The ADS-943 achieves its specifi ed accuracies without the need for exter- testing. nal calibration. If required, the device's small initial offset and gain errors 2k7 GAIN ADJUST +5V 1.98k7 SIGNAL INPUT To Pin21 7 50 of ADS-943 –5V Figure 2. Optional ADS-943 Gain Adjust Calibration Circuit DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 3 of 9 ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters Gain Adjust Procedure CALIBRATION PROCEDURE 1. Apply +1.99963V to the ANALOG INPUT (pin 21). Any offset and/or gain calibration procedures should not be implemented until devices are fully warmed up. To avoid interaction, offset must be 2. Adjust the gain potentiometer until all output bits are 1's and the LSB adjusted before gain. The ranges of adjustment for the circuits in Figures fl ickers between 1 and 0. 2 and 3 are guaranteed to compensate for the ADS-943's initial accuracy errors and may not be able to compensate for additional system errors. 3. To confi rm proper operation of the device, vary the input signal to obtain the output coding listed in Table 2. A/D converters are calibrated by positioning their digital outputs exactly on the transition point between two adjacent digital output codes. This can Table 1. Gain and Zero Adjust be accomplished by connecting LED's to the digital outputs and adjusting until certain LED's "fl icker" equally between on and off. Other approaches INPUT VOLTAGE ZERO ADJUST GAIN ADJUST employ digital comparators or microcontrollers to detect when the outputs RANGE +½ LSB +FS –1½ LSB change from one code to the next. ±2V +122μV +1.99963V Offset adjusting for the ADS-943 is normally accomplished at the point where the MSB is a 1 and all other output bits are 0's and the LSB just Table 2. Output Coding for Bipolar Operation changes from a 0 to a 1. This digital output transition ideally occurs when the applied analog input is +½ LSB (+122μV). OFFSET BINARY INPUT VOLTAGE BIPOLAR SCALE Gain adjusting is accomplished when all bits are 1's and the LSB just (±2V RANGE) MSB LSB changes from a 1 to a 0. This transition ideally occurs when the analog +FS – 1 LSB +1.99976 11 1111 1111 1111 input is at +full scale minus 1½ LSB's (+1.99963V). +3/4FS +1.50000 11 1000 0000 0000 Zero/Offset Adjust Procedure +1/2FS +1.00000 11 0000 0000 0000 1. Apply a train of pulses to the START CONVERT input (pin 18) so the con- 0 0.00000 10 0000 0000 0000 verter is continuously converting. –1/2 FS –1.00000 01 0000 0000 0000 2. Apply +122μV to the ANALOG INPUT (pin 21). –3/4 FS –1.50000 00 1000 0000 0000 –FS +1 LSB 1.99976 00 0000 0000 0001 3. Adjust the offset potentiometer until the output bits are 10 0000 0000 –FS –2.00000 00 0000 0000 0000 0000 and the LSB fl ickers between 0 and 1. ~ –5V +5V 4.7μF 4.7μF 4.7μF + + + 0.1μF 0.1μF 0.1μF 19 20 24 14 22, 13 1 BIT 1 (MSB) 2 BIT 2 ANALOG 3 BIT 3 21 INPUT 4 BIT 4 5 BIT 5 +5V 6 BIT 6 7 BIT 7 ZERO/ 8 BIT 8 23 ADS-943 OFFSET ADJUST 20k7 9 BIT 9 10 BIT 10 11 BIT 11 –5V 12 BIT 12 START 15 BIT 13 18 CONVERT 16 BIT 14 (LSB) 17 EOC ~ A single +5V supply should be used for both the +5V analog and +5V digital. If separate supplies are used, the difference between the two cannot exceed 100mV. Figure 3. Connection Diagram DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 4 of 9 ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters THERMAL REQUIREMENTS devices do not overheat. The ground and power planes beneath the package, All DATEL sampling A/D converters are fully characterized and speci- as well as all pcb signal runs to and from the device, should be as heavy as fi ed over operating temperature (case) ranges of 0 to +70°C and –55 possible to help conduct heat away from the package. to +125°C. All room-temperature (TA = +25°C) production testing is performed without the use of heat sinks or forced-air cooling. Thermal Electrically-insulating, thermally-conductive "pads" may be installed impedance fi gures for each device are listed in their respective specifi ca- underneath the package. Devices should be soldered to boards rather than tion tables. "socketed," and of course, minimal air fl ow over the surface can greatly help reduce the package temperature. These devices do not normally require heat sinks; however, standard precautionary design and layout procedures should be used to ensure N N+1 START 20ns typ. CONVERT 333nsec 10ns typ. Acquisition Time 125ns typ. 125ns typ. 208ns typ. INTERNAL S/H 215ns max. Hold Conversion Time 35ns typ. 120ns min., 130ns typ., 30ns typ. 140ns max. 130ns EOC Invalid 10ns max. Data OUTPUT Data N-1 Valid Data N Valid Data N+1 Valid DATA 283ns typ. 50ns typ. Note: 1. Scale is approximately 20ns per division. Sampling rate = 3MHz. 2. The start convert positive pulse width must be between either 10 and 110nsec or 160 and 300nsec (when sampling at 3MHz) to ensure proper operation. For sampling rates lower than 3MHz, the start pulse can be wider than 300nsec, however a minimum pulse width low of 30nsec should be maintained. A 3MHz clock with a 20nsec positive pulse width is used for all production testing. Figure 4. ADS-943 Timing Diagram DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 5 of 9 ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 6 of 9 OPTION +15V +5VA SG5 SG6 C18 R2 0.1μF (Optional) START (Optional) 4 CONV. 11 – P4 10 P3 U4 +5VF 5 CLC402 + (Optional) C23 ANA. 6 HI2541 IN 0.1μF +5VF C19 C24 3MHz + ANA. IN 0.1μF CRYSTAL +5VF 2.2μF 14 (Optional) SG9 L1 SG7 SG8 4 JPR1 C17 PR +5VF 2 5 14 D U6 Q 8 3 6 31 0.1μF -5VA -15V X1 2 CK Q 1 + CLR R3 C21 7 20μH C1 C8 C26 C27 C25 1 2.2μF 7 3 3.2k 2 U5 0.1μF 2.2μF 2.2μF 0.01μF 15pF HCT7474 20 L2 74HCT86 2 19 1D Q1 74HCT573 3 18 2D Q2 4 17 Q3 3D SG4 5 16 20μH 4D Q4 C2 C9 6 15 START CONVERT U3 –5V 5D Q5 –5V 34 33 7 14 6D Q6 B14 2.2μF 0.01μF ANA. IN 32 31 8 13 B13 +5V OFFSET +5VA 7D Q7 L3 U1 30 29 9 12 Q8 B12 ADJUST 8D 28 27 11 1 B11 CE OE 24 1 +15V AGND 26 25 BIT1 B10 20k 23 R1 2 10 24 23 OFFSET C22 20μH BIT2 + B9 C3 C10 22 3 22 21 +5VA +5VF BIT3 B8 21 4 2.2μF 20 19 AIN BIT4 2 B7 2.2μF 0.01μF 20 5 C16 18 17 -15V -5V BIT5 B6 L4 19 6 16 15 AGND BIT6 B5 18 7 0.1μF 14 13 TRIG BIT7 B4 17 8 20 12 11 26 25 C20 EOC BIT8 B3 16 2 9 19 10 20μH BIT14 9 24 23 BIT9 1D Q1 B2 C4 C11 15 3 18 10 8 7 BIT13 22 21 BIT10 2D Q2 –5VA B1 0.1μF 14 4 17 11 6 5 DGND BIT11 20 19 3D Q3 TRIG 13 5 16 2.2μF 0.01μF 12 4 3 18 17 +5VD BIT12 4D Q4 L5 6 15 JPR2 U2 16 15 5D Q5 CE 7 14 1 2 14 13 6D ADS-943 Q6 1 3 8 13 2 +5V 12 11 Q7 P1 7D 9 12 20μH 10 9 8D Q8 C5 C12 11 1 8 7 CE OE –15V 6 5 10 2.2μF 0.01μF 74HCT573 4 3 L6 +15V 2 1 9 8 SPARE GATES P2 U5 20μH C6 C13 10 74HCT86 +5VF 2.2μF 0.01μF SG1 C15 +5VF +5VA L7 0.1μF SG2 14 U6 12 10 20μH 11 NOTES: PR U5 C7 C14 13 9 12 SG3 D Q 1. UNLESS OTHERWISE SPECIFIED ALL CAPACITORS ARE 50V. 11 8 GND 2.2μF CK 7 0.01μF 13 C1 - C7 ARE 20V. CLR SG10 ALL RESISTORS ARE IN OHMS. 74HCT86 HCT7474 2. CLOSE SG1-SG3, SG9, SG10. 4 6 U5 5 3. SEE DATEL DWG A-24546 FOR ADDITIONAL INFORMATION ON ADS-B946 EVALUATION BOARD. Figure 5. ADS-943 Evaluation Board Schematic + + + + + + + + ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 0 150 300 450 600 750 900 1.05 1.20 1.35 1.5 kHz kHz kHz kHz kHz kHz MHz MHz MHz MHz Frequency (fs = 3MHz, fin = 1.485MHz, Vin = –0.5dB, 16,384-point FFT) Figure 6. ADS-943 FFT Analysis +0.60 DNL (LSB's) 0.00 –0.58 0 16,384 Digital Output Code 16,384 0 Digital Output Code Figure 7. ADS-943 Histogram and Differential Nonlinearity DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 7 of 9 Amplitude Relative to Full Scale (dB) Number of Occurences ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters MECHANICAL DIMENSIONS - INCHES (mm) 1.31 MAX. (33.27) 24-Pin DDIP Dimension Tolerances (unless otherwise indicated): Versions 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) 24 13 ADS-943MC Kovar alloy Lead Material: 0.80 MAX. ADS-943ME 50 microinches (minimum) gold plating (20.32) Lead Finish: over 100 microinches (nominal) nickel plating ADS-943MM 112 ADS-943/883 ADS-943MC-C 0.100 TYP. ADS-943ME-C (2.540) 1.100 ADS-943MM-C (27.940) ADS-943-C/883 0.235 MAX. (5.969) PIN 1 INDEX 0.200 MAX. (5.080) +0.002 0.010 –0.001 (0.254) 0.190 MAX. 0.100 0.100 (4.826) (2.540) (2.540) 0.600 ±0.010 SEATING (15.240) PLANE 0.040 0.018 ±0.002 0.025 (1.016) (0.457) (0.635) 24-Pin 1.31 MAX. (33.02) Surface Mount Versions Dimension Tolerances (unless otherwise indicated): 13 24 2 place decimal (.XX) ±0.010 (±0.254) ADS-943GC 3 place decimal (.XXX) ±0.005 (±0.127) ADS-943GE Lead Material: Kovar alloy 0.80 MAX. ADS-943GM (20.32) Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating ADS-943G/883 ADS-943GC-C 1 12 ADS-943GE-C ADS-943GM-C ADS-943G-C/883 0.020 TYP. 0.060 TYP. 0.015 (0.508) (1.524) 0.190 MAX. (0.381) (4.826) 0.130 TYP. MAX. radius PIN 1 for any pin (3.302) INDEX 0.100 (2.540) 0.020 0.010 TYP. (0.508) (0.254) 0.100 TYP. 0.040 (2.540) (1.016) DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 8 of 9 ADS-943 14-Bit, 3MHz, Low-Distortion, Sampling A/D Converters ORDERING INFORMATION OPERATING MODEL NUMBER PACKAGE ROHS ACCESSORIES TEMP. RANGE ADS-943MC 0 to +70°C DDIP No ADS-B943 Evaluation Board (without ADS-943) ADS-943MC-C 0 to +70°C DDIP Yes HS-24 Heat Sinks for all ADS-943 DDIP models. Receptacles for PC board mounting can be ordered through AMP ADS-943ME –40 to +100°C DDIP No Inc. Part #3-331272-8 (Component Lead Socket), 24 required. ADS-943ME-C –40 to +100°C DDIP Yes For MIL-STD-883 product specifi cations, contact DATEL. ADS-943MM –55 to +125°C DDIP No ADS-943MM-C –55 to +125°C DDIP Yes ADS-943MM-QL –55 to +125°C DDIP No ADS-943MM-QL-C –55 to +125°C DDIP Yes ADS-943/883 –55 to +125°C DDIP No ADS-943-C/883 –55 to +125°C DDIP Yes ADS-943GC 0 to +70°C SMT No ADS-943GC-C 0 to +70°C SMT Yes ADS-943GE –40 to +100°C SMT No ADS-943GE-C –40 to +100°C SMT Yes ADS-943GM –55 to +125°C SMT No ADS-943GM-C –55 to +125°C SMT Yes ADS-943G/883 –55 to +125°C SMT No ADS-943G-C/883 –55 to +125°C SMT Yes DATEL is a registered trademark of DATEL, Inc. DATEL, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA licenses to make, use, or sell equipment constructed in accordance therewith. Specifi cations are subject to change without notice. ITAR and ISO 9001/14001 REGISTERED © 2015 DATEL, Inc. www.datel.com • e-mail: help@datel.com 21 Aug 2015 MDA_ADS-943.C02 Page 9 of 9