SHM-50 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifi ers SMT Package FEATURES „ Small 8-pin DIP or SMT package „ 30ns typical acquisition time to ±0.01%, 40ns typical acquisition time to 0.005% „ 15ns typical sample-to-hold settling time to ±0.01% „ 100MHz small signal bandwidth „ –78dB feedthrough attenuation „ ±2 picoseconds aperture uncertainty „ 85mW typical, 135mW maximum power dissipation INPUT/OUTPUT CONNECTIONS GENERAL DESCRIPTION Pin Function DATEL’s SHM-50 is a high-speed, highly accurate sample/hold designed 1 +5v Digital Supply for precision, high-speed analog signal processing applications. The 2 S/H Control SHM-50 features excellent dynamic specifi cations including a maximum 3 Analog Input acquisition time of only 40 nanoseconds for a 2V step to ±0.01%. Sample-to-hold settling time, to ±0.01% accuracy, is 20 nanoseconds 4 Analog Return maximum with an aperture uncertainty of ±2 picoseconds. 5 –5v Supply The SHM-50 is a complete sample/hold circuit, containing a preci- 6 Analog Output sion MOS hold capacitor and a MOSFET switching confi guration which 7 +5v Analog Supply results in faster switching and better feedthrough attenuation. Addition- ally, a FET input amplifi er design allows faster acquisition and settling 8 Power Ground times while maintaining a considerably lower droop rate. +5V +5V –5V ANALOG DIGITAL SUPPLY SUPPLY SUPPLY 5 1 7 1k 7 1k 7 ANALOG INPUT 3 ANALOG OUTPUT 6 SWITCH S/H CONTROL 2 DRIVER 8 4 POWER GROUND ANALOG RETURN Figure 1. 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 MDC_SHM-50.B07 Page 1 of 4 SHM-50 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifi ers POWER REQUIREMENTS MIN. TYP. MAX. UNITS ABSOLUTE MAXIMUM RATINGS Voltage Range ±6.6V ±5V Supply Voltages +5V Supply +4.75 +5.0 +5.25 Volts –5V Supply –4.75 –5.0 –5.25 Volts ±4V Analog Input Power Supply Rejection Ratio — ±0.5 ±1 mV/V –0.5V to +5.5V Digital Input Quiescent Current Drain +5V Analog Supply — +7 +12 mA ±65 mA Output Current –5V Supply — –10 –15 mA Power Consumption — 85 135 mW Functional SpeciŢ cations PHYSICAL/ENVIRONMENTAL Apply over the operating temperature range with ±5Vdc unless otherwise specifi ed. Operating Temp. Range, Case SHM-50MC, GC 0 to +70°C ANALOG INPUT/OUTPUT MIN. TYP. MAX. UNITS SHM-50ME, GE –40 to +100°C Input/Output Voltage Range –3.5 — +3.5 Volts SHM-50MM, GM –55 to +125°C Input Impedance — 1000 — Ω Storage Temperature Range –65 to +150°C Output Current — — ±65 mA Thermal Impedance Output Impedance — 0.1 — Ω θjc 15°C/W θca 35°C/W Capacitive Load 100 250 — pF Package Type 8-pin ceramic DIP or SMT DIGITAL INPUT Input Logic Levels Logic 1 +2.0 — +5.0 Volts Logic 0 0 — +0.8 Volts Footnotes: ➀ Full Scale (FS) = 2V. Full Scale Range (FSR) = 4V. Loading ➁ Sample-to-hold offset error (pedestal) is constant regardless of input/output Logic 1 — — +5 μA level. Logic 0 — — –5 μA TRANSFER CHARACTERISTICS Gain — –1.5 — V/V Gain Error, +25°C — ±0.05 ±0.25 % Linearity Error ➀ — ±0.0035 ±0.005 %FS Sample Mode Offset , +25°C — ±2 ±7 mV Sample-to-Hold Offset — ±30 60 mV (Pedestal), +25°C ➁ Gain Drift — ±1 ±15 ppm/°C Sample Mode Offset Drift ➀ — ±3 ±15 ppm of FSR/°C Sample-to-Hold Off. — ±5 ±20 ppm of FSR/°C (Pedestal) Drift DYNAMIC CHARACTERISTICS Acquisition Time 2V to ±0.005%FS (±100μV) +25°C — 40 50 ns –55 to +125°C — 70 TBD ns 2V to ±0.01%FS (±200μV) +25°C — 30 40 ns –55 to +125°C — 40 50 ns 2V to ±0.1%FS (±2mV) — 25 30 ns Sample-to-Hold Settling Time TECHNICAL NOTES 2V to ±0.005%FS (±100μV) — 15 25 ns 1. All ground pins should be tied together and connected to system analog ground 2V to ±0.01%FS (±200μV) — 10 20 ns as close to the package as possible. It is recommended to use a ground plane Sample-to-Hold Transient — 100 — mVp-p under the device and solder ground pins directly to it. Take care to ensure that Aperture Delay Time — 2 4 ns no ground potentials can exist between ground pins. A single +5V supply can be Aperture Uncertainty (Jitter) — ±2 ±4 ps used for both +5V Digital Supply (pin 1) and +5V Analog Supply (pin 7). Output Slew Rate 600 ±650 — V/μs 2. External 0.1μF to 4.7μF tantalum bypass capacitors are required in critical applications. Small Signal BW (–3dB) 90 100 — MHz 3. A logic 1 on S/H puts the unit in the sample mode. A logic 0 puts the unit in Output Droop hold mode. +25°C — ±0.2 ±1.0 μV/nS 4. Gain and offset adjusting can be accomplished using the external circuitry 0 to +70°C — ±0.3 ±1.0 μV/nS shown in Figure 2. Adjust offset with a 0V input. Adjust gain with a ±FS input. –55 to +125°C — ±5.0 ±12.0 μV/nS Adjust so that the output in the hold mode matches the input. Feedthrough Rejection — –78 — dB DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com MDC_SHM-50.B07 Page 2 of 4 SHM-50 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifi ers (GAIN ADJUST) R1 ANALOG INPUT 7 7 1k , 0.1% 1k , 0.1% 507 TO SHM-50 PIN 3 HIGH-SPEED FAST-SETTLING 7 AMPLIFIER 5.11k 7 3M –15V +15V R2 (OFFSET ADJUST) Figure 2. Offset and Gain Adjustments +5V S/H COMMAND SAMPLE HOLD 0V (GND) +1V ACQUISITION ANALOG INPUT TIME -1V 40nS ±0.005% TYP. +1V 15nS SAMPLE HOLD OUTPUT ±0.005% 15nS -1V ±0.005% FEEDTHRU TRACK -78 dB 40nS TO HOLD ±0.005% SETTLING, TYP. Figure 3. Timing Diagram Soldering Guidelines Recommended Lead-free Solder Reţ ow ProŢ le DATEL recommends the specifi cations below when installing these convert- ers. These specifi cations vary depending on the solder type. Exceeding these specifi cations may cause damage to the product. Your production environment may differ therefore please thoroughly review these guidelines with your process engineers. REFLOW SOLDER OPERATIONS FOR SURFACE-MOUNT PRODUCTS (SMT) For Sn/Ag/Cu based solders: Preheat Temperature Less than 1 ºC. per second Time over Liquidus 45 to 75 seconds Maximum Peak Temperature 260 ºC. Cooling Rate Less than 3 ºC. per second For Sn/Pb based solders: Preheat Temperature Less than 1 ºC. per second Time over Liquidus 60 to 75 seconds Maximum Peak Temperature 235 ºC. Cooling Rate Less than 3 ºC. per second DATEL, Inc. 11 Cabot Boulevard, MansŢ eld, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: help@datel.com MDC_SHM-50.B07 Page 3 of 4 SHM-50 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifi ers MECHANICAL DIMENSIONS Inches (mm) DIP Package SMT Package 0.405 MAX. (10.287) Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) ±0.001 (±0.25) 3 place decimal (.XXX) ±0.005 (±0.127) 0.300 MAX. SHM-50 SHM-50 (7.62) PIN 1 0.140 MAX. (3.556) 0.300 0.14 0.018 (0.097) 0.09 0.035 ±0.010 (3.55) (7.62) (2.23) 0.400 (0.89) (10.16) 0.200 MAX. 0.010 ±0.002 (5.08) (0.254) 0.070 TYP. 0.05 (1.27) 0.054 0.018 ±0.002 (1.78) (1.372) 0.050 (0.457) 0.100 TYP. 0.46 (1.27) (2.54) 0.300 ±0.015 0.300 (11.68) 0.100 TYP. (7.620) (7.62) (2.540) 0.300 ±0.005 (7.620) I IS SO O 9001 9001 REGISTERED ORDERING INFORMATION Model Number Operating Temp. Range Package RoHS 0 to +70°C DIP No SHM-50MC -40 to +100°C DIP No SHM-50ME -55 to +125°C DIP No SHM-50MM 0 to +70°C SMT No SHM-50GC -40 to +100°C SMT No SHM-50GE -55 to +125°C SMT No SHM-50GM 0 to +70°C DIP Yes SHM-50MC-C -40 to +100°C DIP Yes SHM-50ME-C -55 to +125°C DIP Yes SHM-50MM-C 0 to +70°C SMT Yes SHM-50GC-C -40 to +100°C SMT Yes SHM-50GE-C -55 to +125°C SMT Yes SHM-50GM-C For availability of high-reliability versions of the SHM-50, contact DATEL. 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 MDC_SHM-50.B07 Page 4 of 4