SHM-50 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifiers 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 DATEL’s SHM-50 is a high-speed, highly accurate sample/hold designed for precision, high-speed analog signal processing applications. The SHM-50 features excellent dynamic specifications including a maximum 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 maximum with an aperture uncertainty of ±2 picoseconds. The SHM-50 is a complete sample/hold circuit, containing a precision MOS hold capacitor and a MOSFET switching configuration which results in faster switching and better feedthrough attenuation. Additionally, a FET input amplifier design allows faster acquisition and settling times while maintaining a considerably lower droop rate. Pin 1 +5v Digital Supply 2 S/H Control 3 Analog Input 4 Analog Return 5 –5v Supply 6 Analog Output 7 +5v Analog Supply 8 Power Ground +5V DIGITAL SUPPLY 1 +5V ANALOG SUPPLY 7 –5V SUPPLY 5 Function 1k 7 1k 7 ANALOG INPUT 3 6 ANALOG OUTPUT S/H CONTROL 2 SWITCH DRIVER 8 POWER GROUND 4 ANALOG RETURN Figure 1. Functional Block Diagram DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] MDC_SHM-50.B07 Page 1 of 4 SHM-50 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifiers POWER REQUIREMENTS Voltage Range +5V Supply –5V Supply Power Supply Rejection Ratio Quiescent Current Drain +5V Analog Supply –5V Supply Power Consumption PHYSICAL/ENVIRONMENTAL Operating Temp. Range, Case SHM-50MC, GC SHM-50ME, GE SHM-50MM, GM Storage Temperature Range Thermal Impedance θjc θca Package Type ABSOLUTE MAXIMUM RATINGS ±5V Supply Voltages ±6.6V Analog Input ±4V Digital Input –0.5V to +5.5V Output Current ±65 mA Functional Specifications Apply over the operating temperature range with ±5Vdc unless otherwise specified. ANALOG INPUT/OUTPUT Input/Output Voltage Range Input Impedance Output Current Output Impedance Capacitive Load MIN. –3.5 — — — 100 TYP. — 1000 — 0.1 250 MAX. +3.5 — ±65 — — UNITS Volts Ω mA Ω pF DIGITAL INPUT Input Logic Levels Logic 1 Logic 0 +2.0 0 — — +5.0 +0.8 Volts Volts — — — — +5 –5 μA μA — — — — –1.5 ±0.05 ±0.0035 ±2 — ±0.25 ±0.005 ±7 V/V % %FS mV — ±30 60 mV — — ±1 ±3 ±15 ±15 ppm/°C ppm of FSR/°C — ±5 ±20 ppm of FSR/°C — — 40 70 50 TBD ns ns — — — 30 40 25 40 50 30 ns ns ns — — — — — 600 90 15 10 100 2 ±2 ±650 100 25 20 — 4 ±4 — — ns ns mVp-p ns ps V/μs MHz Loading Logic 1 Logic 0 TRANSFER CHARACTERISTICS Gain Gain Error, +25°C Linearity Error ➀ Sample Mode Offset , +25°C Sample-to-Hold Offset (Pedestal), +25°C ➁ Gain Drift Sample Mode Offset Drift ➀ Sample-to-Hold Off. (Pedestal) Drift DYNAMIC CHARACTERISTICS Acquisition Time 2V to ±0.005%FS (±100μV) +25°C –55 to +125°C 2V to ±0.01%FS (±200μV) +25°C –55 to +125°C 2V to ±0.1%FS (±2mV) Sample-to-Hold Settling Time 2V to ±0.005%FS (±100μV) 2V to ±0.01%FS (±200μV) Sample-to-Hold Transient Aperture Delay Time Aperture Uncertainty (Jitter) Output Slew Rate Small Signal BW (–3dB) Output Droop +25°C 0 to +70°C –55 to +125°C Feedthrough Rejection ±0.2 ±0.3 ±5.0 –78 ±1.0 ±1.0 ±12.0 — μV/nS μV/nS μV/nS dB DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA TYP. MAX. UNITS +4.75 –4.75 — +5.0 –5.0 ±0.5 +5.25 –5.25 ±1 Volts Volts mV/V — — — +7 –10 85 +12 –15 135 mA mA mW 0 to +70°C –40 to +100°C –55 to +125°C –65 to +150°C 15°C/W 35°C/W 8-pin ceramic DIP or SMT Footnotes: ➀ Full Scale (FS) = 2V. Full Scale Range (FSR) = 4V. ➁ Sample-to-hold offset error (pedestal) is constant regardless of input/output level. TECHNICAL NOTES 1. 2. 3. — — — — MIN. 4. All ground pins should be tied together and connected to system analog ground as close to the package as possible. It is recommended to use a ground plane under the device and solder ground pins directly to it. Take care to ensure that no ground potentials can exist between ground pins. A single +5V supply can be used for both +5V Digital Supply (pin 1) and +5V Analog Supply (pin 7). External 0.1μF to 4.7μF tantalum bypass capacitors are required in critical applications. A logic 1 on S/H puts the unit in the sample mode. A logic 0 puts the unit in hold mode. Gain and offset adjusting can be accomplished using the external circuitry shown in Figure 2. Adjust offset with a 0V input. Adjust gain with a ±FS input. Adjust so that the output in the hold mode matches the input. • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] MDC_SHM-50.B07 Page 2 of 4 SHM-50 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifiers ANALOG INPUT (GAIN ADJUST) R1 1k7, 0.1% 1k7, 0.1% 507 TO SHM-50 PIN 3 5.11k7 –15V HIGH-SPEED FAST-SETTLING AMPLIFIER 3M7 +15V R2 (OFFSET ADJUST) Figure 2. Offset and Gain Adjustments +5V S/H COMMAND SAMPLE HOLD 0V (GND) +1V ANALOG INPUT -1V ACQUISITION TIME 40nS ±0.005% TYP. +1V 15nS SAMPLE HOLD OUTPUT 15nS ±0.005% TRACK TO HOLD SETTLING, TYP. -1V ±0.005% FEEDTHRU -78 dB 40nS ±0.005% Figure 3. Timing Diagram Soldering Guidelines DATEL recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Your production environment may differ therefore please thoroughly review these guidelines with your process engineers. Recommended Lead-free Solder Reflow Profile 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, Mansfield, MA 02048-1151 USA • Tel: (508) 339-3000 • www.datel.com • e-mail: [email protected] MDC_SHM-50.B07 Page 3 of 4 SHM-50 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifiers MECHANICAL DIMENSIONS Inches (mm) DIP Package SMT Package 0.405 MAX. (10.287) SHM-50 PIN 1 Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) ±0.001 (±0.25) 3 place decimal (.XXX) ±0.005 (±0.127) 0.300 MAX. (7.62) SHM-50 0.140 MAX. (3.556) 0.09 (2.23) 0.018 (0.097) 0.035 ±0.010 (0.89) 0.200 MAX. (5.08) 0.054 (1.372) 0.300 (7.62) 0.14 (3.55) 0.400 (10.16) 0.010 ±0.002 (0.254) 0.05 (1.27) 0.018 ±0.002 (0.457) 0.300 ±0.015 (7.620) 0.100 TYP. (2.540) 0.100 TYP. (2.54) 0.300 (7.62) 0.070 TYP. (1.78) 0.46 (11.68) 0.050 (1.27) 0.300 ±0.005 (7.620) ISO 9001 R E G I S T E R E D Model Number SHM-50MC SHM-50ME SHM-50MM SHM-50GC SHM-50GE SHM-50GM SHM-50MC-C SHM-50ME-C SHM-50MM-C SHM-50GC-C SHM-50GE-C SHM-50GM-C ORDERING INFORMATION Operating Temp. Range Package 0 to +70°C DIP -40 to +100°C DIP -55 to +125°C DIP 0 to +70°C SMT -40 to +100°C SMT -55 to +125°C SMT 0 to +70°C DIP -40 to +100°C DIP -55 to +125°C DIP 0 to +70°C SMT -40 to +100°C SMT -55 to +125°C SMT RoHS No No No No No No Yes Yes Yes Yes Yes Yes For availability of high-reliability versions of the SHM-50, contact DATEL. DATEL is a registered trademark of DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 USA 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 licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. ITAR and ISO 9001/14001 REGISTERED © 2015 DATEL, Inc. www.datel.com • e-mail: [email protected] MDC_SHM-50.B07 Page 4 of 4