ADS-946 14-Bit, 8MHz Sampling A/D Converters PRODUCT OVERVIEW The low-cost ADS-946 is a 14-bit, 8MHz sam- timing/control logic, and error-correction circuitry. pling A/D converter. This device accurately samples Digital input and output levels are TTL. The ADS- full-scale input signals up to Nyquist frequencies 946 only requires the rising edge of a start convert with no missing codes. Excellent differential nonlin- pulse to operate. earity error (DNL), signal-to-noise ratio (SNR), and Requiring only ±5V supplies, the ADS-946 total harmonic distortion (THD) make the ADS-946 typically dissipates just 2 Watts. The device is the ideal choice for both time-domain (CCD/FPA offered with a bipolar input range of ±2V. Models imaging, scanners, process control) and frequency- are available for use in either commercial (0 to domain (radar, telecommunications, spectrum +70°C), industrial (–40 to +100°C), or HI-REL analysis) applications. (–55 to +125°C) operating temperature ranges. A The functionally complete ADS-946 contains a proprietary, auto-calibrating, error-correcting circuit fast-settling sample-hold amplifi er, a subranging allows the device to achieve specifi ed performance FEATURES (two-pass) A/D converter, an internal reference, over the full HI-REL temperature range. „ 14-bit resolution „ 8MHz guaranteed sampling rate „ INPUT/OUTPUT CONNECTIONS No missing codes over full HI-REL temperature PIN FUNCTION PIN FUNCTION range 1 BIT 1 (MSB) 24 ANALOG GROUND 2 BIT 2 23 OFFSET ADJUST „ Ideal for both time and frequency-domain 3 BIT 3 22 +5V ANALOG SUPPLY applications 4 BIT 4 21 ANALOG INPUT „ Excellent THD (–75dB) and SNR (77dB) 5 BIT 5 20 –5V SUPPLY 6 BIT 6 19 ANALOG GROUND „ Edge-triggered; No pipeline delays 7 BIT 7 18 START CONVERT 8 BIT 8 17 EOC „ Small, 24-pin, ceramic DDIP or SMT 9 BIT 9 16 BIT 14 (LSB) „ Requires only ±5V supplies 10 BIT 10 15 BIT 13 11 BIT 11 14 DIGITAL GROUND „ Low-power, 2 Watts 12 BIT 12 13 +5V DIGITAL SUPPLY „ MIL-STD-883 screening available BLOCK DIAGRAM OFFSET ADJUST 23 BUFFER 16 BIT 14 (LSB) ANALOG INPUT 21 – 15 BIT 13 S/H FLASH + 12 BIT 12 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 Σ 6 BIT 6 –5V SUPPLY 20 5 BIT 5 ANALOG GROUND 19, 24 4 BIT 4 FLASH 3 BIT 3 DIGITAL GROUND 14 ADC 2 2 BIT 2 AMP 1 BIT 1 (MSB) START CONVERT 18 TIMING AND CONTROL LOGIC EOC 17 Figure 1. ADS-946 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 03 Sep 2015 MDA_ADS-946.C01 Page 1 of 9 REGISTER REGISTER DIGITAL CORRECTION LOGIC OUTPUT REGISTER ADS-946 14-Bit, 8MHz Sampling A/D Converters ABSOLUTE MAXIMUM RATINGS PHYSICAL/ENVIRONMENTAL PARAMETERS LIMITS UNITS PARAMETERS MIN. TYP. MAX. UNITS +5V Supply (Pins 13, 22) 0 to +6 Volts Operating Temp. Range, Case –5V Supply (Pin 20) 0 to –6 Volts ADS-946MC, GC, MC-C, GC-C 0 — +70 °C Digital Input (Pin 18) –0.3 to +VDD +0.3 Volts ADS-946ME, GE, ME-C, GE-C –40 — +100 °C Analog Input (Pin 21) ±5 Volts ADS-946MM, GM, MM-C, GM-C –55 — +125 °C Lead Temperature (10 seconds) +300 °C ADS-946MM-QL, 883, MM-QL-C, 883-C –55 — +125 °C Thermal Impedance θjc — 6 — °C/Watt θca — 23 — °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, 8MHz 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 — 200 — — 200 — — 200 — 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 — ns 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 ±0.8 %FSR Bipolar Zero Error (Tech Note 2) — ±0.2 ±0.4 — ±0.2 ±0.4 — ±0.4 ±0.65 %FSR Gain Error (Tech Note 2) — ±0.2 ±0.75 — ±0.2 ±0.75 — ±0.4 ±1.25 % No Missing Codes (fi n = 10kHz) 14 — — 14 — — 14 — — Bits DYNAMIC PERFORMANCE Peak Harmonics (–0.5dB) dc to 500kHz — –76 –72 — –76 –72 — –74 –70 dB 500kHz to 1MHz — –75 –72 — –75 –72 — –74 –68 dB 1MHz to 4MHz — –75 –71 — –75 –71 — –69 –65 dB Total Harmonic Distortion (–0.5dB) dc to 500kHz — –75 –71 — –75 –71 — –74 –70 dB 500kHz to 1MHz — –75 –70 — –75 –70 — –72 –68 dB 1MHz to 4MHz — –75 –70 — –75 –70 — –69 –64 dB Signal-to-Noise Ratio (w/o distortion, –0.5dB) dc to 500kHz 73 77 — 73 77 — 72 76 — dB 500kHz to 1MHz 73 77 — 73 77 — 72 76 — dB 1MHz to 4MHz 73 77 — 73 77 — 71 76 — dB Signal-to-Noise Ratio f (& distortion, –0.5dB) dc to 500kHz 70 74 — 70 74 — 68 73 — dB 500kHz to 1MHz 69 73 — 69 73 — 65 70 — dB 1MHz to 4MHz 69 73 — 69 73 — 65 70 — dB Noise — 150 — — 150 — — 150 — μVrms Two-Tone Intermodulation Distortion (fi n = 2.45MHz, 1.975MHz, fs = 8MHz, –0.5dB) — –82 — — –82 — — –82 — dB Input Bandwidth (–3dB) Small Signal (–20dB input) — 30 — — 30 — — 30 — MHz Large Signal (–0.5dB input) — 10 — — 10 — — 10 — MHz Feedthrough Rejection (fi n = 4MHz) — 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) — 55 60 — 55 60 — 55 60 ns Overvoltage Recovery Time ➄ — 100 125 — 100 125 — 100 125 ns A/D Conversion Rate 8 — — 8 — — 8 — — MHz DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com 03 Sep 2015 MDA_ADS-946.C01 Page 2 of 9 ADS-946 14-Bit, 8MHz 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 Ranges ➅ +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 — +270 +290 — +270 +290 — +270 +290 mA –5V Supply — –150 –170 — –150 –170 — –150 –170 mA Power Dissipation — 2 2.3 — 2 2.3 — 2 2.3 Watts Power Supply Rejection — — ±0.05 — — ±0.05 — — ±0.05 %FSR/%V Footnotes: ➀ All power supplies should be on before applying a start convert pulse. All supplies ➄ This is the time required before the A/D output data is valid once the analog input and the clock (start convert pulses) must be present during warmup periods. The is back within the specifi ed range. This time is only guaranteed if the input does device must be continuously converting during this time. not exceed ±2.2V (S/H saturation voltage). ➁ Contact DATEL for other input voltage ranges. ➅ The minimum supply voltages of +4.9V and –4.9V for ±VDD are required for –55°C operation only. The minimum limits are +4.75V and –4.75V when operating ➂ An 8MHz clock with a 20nsec positive pulse width is used for all production at +125°C. testing. See Timing Diagram, Figure 4, for more details. ➃ Effective bits is equal to: Full Scale Amplitude (SNR + Distortion) – 1.76 + 20 log Actual Input Amplitude 6.02 TECHNICAL NOTES 1. Obtaining fully specifi ed performance from the ADS-946 requires care- 3. Applying a start convert pulse while a conversion is in progress (EOC = ful attention to pc card layout and power supply decoupling. The device’s logic 1) will initiate a new and inaccurate conversion cycle. Data for the analog and digital ground systems are connected to each other internally. interrupted and subsequent conversions will be invalid. For optimal performance, tie all ground pins (14, 19 and 24) directly to a 4. A passive bandpass fi lter is used at the input of the A/D for all production large analog ground plane beneath the package. Bypass all power supplies testing. to ground with 4.7μF tantalum capacitors in parallel with 0.1μF ceramic capacitors. Locate the bypass capacitors as close to the unit as possible. 2kΩ 2. The ADS-946 achieves its specifi ed accuracies without the need for exter- GAIN nal calibration. If required, the device’s small initial offset and gain errors ADJUST can be reduced to zero using the adjustment circuitry shown in Figures +5V 2 and 3. When using this circuitry, or any similar offset and gain calibra- 1.98kΩ SIGNAL tion hardware, make adjustments following warmup. To avoid interaction, INPUT To Pin 21 50Ω always adjust offset before gain. of ADS-946 –5V Figure 2. Optional ADS-946 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 03 Sep 2015 MDA_ADS-946.C01 Page 3 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters CALIBRATION PROCEDURE Gain Adjust Procedure Any offset and/or gain calibration procedures should not be implemented 1. Apply +1.99963V to the ANALOG INPUT (pin 21). 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 fl ick- adjusted before gain. The ranges of adjustment for the circuits in Figures ers between 1 and 0. 2 and 3 are guaranteed to compensate for the ADS-946'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 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 RANGE +½ LSB +FS –1½ LSB employ digital comparators or microcontrollers to detect when the outputs change from one code to the next. ±2V +122μV +1.99963V Offset adjusting for the ADS-946 is normally accomplished at the point Table 1. Gain and Zero Adjust where the MSB is a 1 and all other output bits are 0’s and the LSB just changes from a 0 to a 1. This digital output transition ideally occurs when the applied analog input is +½ LSB (+122μV). BIPOLAR INPUT RANGE OFFSET BINARY Gain adjusting is accomplished when all bits are 1's and the LSB just SCALE (±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). +3/4 FS +1.50000 11 1000 0000 0000 +1/2 FS +1.00000 11 0000 0000 0000 0 0.00000 10 0000 0000 0000 Zero/Offset Adjust Procedure –1/2 FS –1.00000 01 0000 0000 0000 1. Apply a train of pulses to the START CONVERT input (pin 18) so the con- –3/4 FS –1.50000 00 1000 0000 0000 verter is continuously converting. –FS +1 LSB –1.99976 00 0000 0000 0001 –FS –2.00000 00 0000 0000 0000 2. Apply +122μV to the ANALOG INPUT (pin 21). Table 2. Output Coding for Bipolar Operation 3. Adjust the offset potentiometer until the output bits are 10 0000 0000 0000 and the LSB fl ickers between 0 and 1. ~ –5V +5V 4.7μF4 4.7μF.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 OFFSET ADS-946 ADJUST 9 BIT 9 20kΩ 10 BIT 10 11 BIT 11 –5V 12 BIT 12 START 18 15 BIT 13 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. Typical ADS-946 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 03 Sep 2015 MDA_ADS-946.C01 Page 4 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters THERMAL REQUIREMENTS overheat. The ground and power planes beneath the package, as well as all All DATEL sampling A/D converters are fully characterized and specifi ed over pcb signal runs to and from the device, should be as heavy as possible to help operating temperature (case) ranges of 0 to +70°C and –55 to +125°C. All conduct heat away from the package. room-temperature (TA = +25°C) production testing is performed without the use of heat sinks or forced-air cooling. Thermal impedance fi gures for each Electrically-insulating, thermally-conductive "pads" may be installed under- device are listed in their respective specifi cation tables. neath the package. Devices should be soldered to boards rather than socketed, and of course, minimal air fl ow over the surface can greatly help reduce the These devices do not normally require heat sinks, however, standard precau- package temperature. tionary design and layout procedures should be used to ensure devices do not NN+1 START CONVERT 20ns typ. 10ns typ. Acquisition Time 70ns typ. 55ns typ. INTERNAL S/H 60ns max. Hold 20ns typ. 25ns typ. Conversion Time EOC 78ns min., 85ns typ., 90ns max. 10ns typ. OUTPUT Data N-1 Valid Data N Valid DATA 30ns typ. 95ns typ. Invalid Data Notes: 1. Scale is approximately 5ns per division. Sampling rate = 8MHz. 2. The start convert positive pulse width must be between 10 and 50ns or between 80 and 110ns (when sampling at 8MHz) to ensure proper operation. For sampling rates less than 8MHz, the start pulse can be wider than 110nsec, however a minimum pulse width low of 15nsec should be maintained. An 8MHz clock with a 20nsec positive pulse width is used for all production testing. Figure 4. ADS-946 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 03 Sep 2015 MDA_ADS-946.C01 Page 5 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 0 400 800 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 kHz kHz MHz MHz MHz MHz MHz MHz MHz MHz Frequency (fs = 8MHz, fin = 3.85MHz, Vin = –0.5dB, 16,384-point FFT) Figure 5. FFT Analysis of ADS-946 +0.81 –0.57 Codes 0 16,384 0 16,384 Digital Output Code Figure 6. ADS-946 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 03 Sep 2015 MDA_ADS-946.C01 Page 6 of 9 Amplitude Relative to Full Scale (dB) Number of Occurrences DNL (LSB's) ADS-946 14-Bit, 8MHz 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 03 Sep 2015 MDA_ADS-946.C01 Page 7 of 9 OPTION +15V +5VA SG5 SG6 C18 R2 0.1μF (Optional) START (Optional) 4 CONV. 11 – P4 10 P3 U4 +5VF 5 CLC402 + ANA. (Optional) C23 6 HI2541 IN 0.1μF +5VF C19 + C24 ANA. IN 8MHz 0.1μF CRYSTAL +5VF 2.2μF 14 (Optional) SG9 L1 SG7 SG8 4 JPR1 C17 PR +5VF 5 2 14 U6 D Q 8 3 6 1 3 0.1μF -15V -5VA X1 CK Q 2 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 3D Q3 SG4 20μH 5 16 4D C2 C9 Q4 6 U3 15 START CONVERT –5V 5D Q5 –5V 34 33 7 14 6D Q6 B14 2.2μF 0.01μF ANA. IN 32 31 8 13 OFFSET 7D Q7 B13 L3 +5V +5VA U1 30 29 9 12 Q8 B12 ADJUST 8D 28 27 11 1 B11 OE 24 1 CE +15V 26 25 AGND BIT1 B10 20k 23 R1 2 10 24 23 OFFSET BIT2 C22 20μH + C3 B9 C10 22 3 +5VF 22 21 +5VA BIT3 B8 21 4 2.2μF 20 19 AIN BIT4 B7 2 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 EOC BIT8 C20 B3 16 2 9 19 20μH 10 9 24 23 BIT14 BIT9 1D Q1 B2 C4 C11 15 3 18 10 8 7 22 21 BIT13 BIT10 2D Q2 B1 –5VA 14 4 0.1μF 11 17 6 5 20 19 DGND BIT11 3D Q3 TRIG 13 5 16 2.2μF 0.01μF 12 4 3 18 17 +5VD BIT12 4D Q4 L5 6 JPR2 U2 15 16 15 5D Q5 CE 7 14 2 1 14 13 6D ADS-946 Q6 8 1 3 13 2 +5V 12 11 7D Q7 P1 9 12 20μH 10 9 Q8 8D C5 C12 11 1 8 7 CE OE –15V 6 5 2.2μF 10 0.01μF 74HCT573 4 3 L6 +15V 2 1 9 8 P2 SPARE GATES U5 20μH C6 C13 10 74HCT86 +5VF 2.2μF SG1 0.01μF +5VF C15 +5VA L7 0.1μF SG2 14 U6 12 20μH 10 11 NOTES: C14 PR U5 C7 13 12 9 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 7. ADS-946 Evaluation Board Schematic (ADS-B946) + + + + + + + + ADS-946 14-Bit, 8MHz Sampling A/D Converters MECHANICAL DIMENSIONS INCHES (mm) 24-Pin DDIP 1.31 MAX. (33.27) Versions Dimension Tolerances (unless otherwise indicated): ADS-946MC 2 place decimal (.XX) ±0.010 (±0.254) 24 13 3 place decimal (.XXX) ±0.005 (±0.127) ADS-946ME 0.80 MAX. Lead Material: Kovar alloy (20.32) ADS-946MM Lead Finish: 50 microinches (minimum) 112 ADS-946/883 gold plating over 100 microinches (nominal) nickel plating ADS-946MC-C 0.100 TYP. ADS-946ME-C (2.540) ADS-946MM-C 1.100 (27.940) ADS-946-C/883 0.235 MAX. (5.969) 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-946GC 3 place decimal (.XXX) ±0.005 (±0.127) ADS-946GE Lead Material: Kovar alloy 0.80 MAX. Lead Finish: 50 microinches (minimum) gold plating (20.32) ADS-946GM over 100 microinches (nominal) nickel plating ADS-946G/883 1 12 ADS-946GC-C ADS-946GE-C ADS-946GM-C ADS-946G-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 03 Sep 2015 MDA_ADS-946.C01 Page 8 of 9 ADS-946 14-Bit, 8MHz Sampling A/D Converters ORDERING INFORMATION OPERATING MODEL NUMBER PACKAGE ROHS ACCESSORIES TEMP. RANGE ADS-946MC 0 to +70°C DDIP No ADS-B946 Evaluation Board (without ADS-946) ADS-946MC-C 0 to +70°C DDIP Yes HS-24 Heat Sink for all ADS-946 DDIP models ADS-946ME –40 to +100°C DDIP No ADS-946ME-C –40 to +100°C DDIP Yes ADS-946MM –55 to +125°C DDIP No ADS-946MM-C –55 to +125°C DDIP Yes ADS-946MM-QL –55 to +125°C DDIP No ADS-946MM-QL-C –55 to +125°C DDIP Yes ADS-946/883 –55 to +125°C DDIP No Receptacles for pc board mounting can be ordered through AMP, ADS-946-C/883 –55 to +125°C DDIP Yes Inc., Part # 3-331272-8 (Component Lead Socket), 24 required. ADS-946GC 0 to +70°C SMT No For MIL-STD-883 product specifcation, contact DATEL. ADS-946GC-C 0 to +70°C SMT Yes ADS-946GE –40 to +100°C SMT No ADS-946GE-C –40 to +100°C SMT Yes ADS-946GM –55 to +125°C SMT No ADS-946GM-C –55 to +125°C SMT Yes ADS-946G/883 –55 to +125°C SMT No ADS-946G-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 03 Sep 2015 MDA_ADS-946.C01 Page 9 of 9