SHM-49 MURATA-PS | Alldatasheet

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Technical content

MDC_SHM-49.B02 Page 1 of 3 www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 SHM-49 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifiers GENERAL DESCRIPTION Murata Power Solution’s SHM-49 is a high-speed, highly accurate sample/hold designed for precision, high-speed analog signal process- ing applications. The SHM-49 features excellent dynamic specifications including a maximum acquisition time of only 200 nanoseconds for a 10V step to ±0.01%. Sample-to-hold settling time, to ±0.01% accuracy, is 100 nanoseconds maximum with an aperture uncertainty of ±2 picoseconds. The SHM-49 is a complete sample/hold circuit, containing a preci- sion MOS hold capacitor and a MOSFET switching configuration which results in faster switching and better feedthrough attenuation. Addition- ally, a FET input amplifier design allows faster acquisition and settling times while maintaining a considerably lower droop rate. INPUT/OUTPUT CONNECTIONS Pin Function 1 +5v Digital Supply

2 S/H Control

3 Analog Input

4 Analog Return

5 –15v Supply

6 Analog Output

8 Power Ground

–15V SUPPLY +15V SUPPLY POWER GROUND SWITCH DRIVER

6 ANALOG OUTPU T

+5V SUPPLY ANALOG RETURN 51 7 2k7 100pF .EW 3-40ACKAGE Figure 1. Functional Block Diagram

FEATURES

/square6 Small 8-pin DIP or SMT package /square6 200ns max. acquisition time to ±0.01% /square6 100ns max. sample-to-hold settling time to ±0.01% /square6 16MHz small signal bandwidth /square6 74dB feedthrough attenuation /square6 ±25 picoseconds aperture uncertainty /square6 415mW maximum power dissipation

MDC_SHM-49.B02 Page 2 of 3 Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000www.murata-ps.com SHM-49 Miniature, High-Speed, Complete ±0.05% Sample Hold Amplifiers Absolute Maximum Ratings ±15V Supply Voltages ±18V +5V Supply Voltages –0.5V to +7V Analog Input ±18V Digital Input –0.5V to +5.5V Output Current ±65 mA Functional Specifications (Apply over the operating temperature range with ±15V and +5V supplies unless otherwise specified.) MODEL OPERATING TEMP. RANGE SHM-49MC 0 to +70°C SHM-49MM –55 to +125°C SHM-49GC 0 to 70°C SHM-49GM –55 to 125°C For availability of high-reliability versions of the SHM-49, contact Murata Power Solutions.

Ordering Information

POWER REQUIREMENTS MIN. TYP. MAX. UNITS Voltage Range +15V Supply +11.5 +15.0 +15.5 Volts –15V Supply –11.5 –15.0 –15.5 Volts +5V Supply +4.75 +5.0 +5.25 Volts Power Supply Rejection Ratio — ±0.5 ±1 mV/V Quiescent Current Drain +15V Analog Supply — +12 +13.5 mA –15V Supply — –12 –13.5 mA +5V Supply — +1 –1.5 Volts Power Consumption — 365 415 mW PHYSICAL/ENVIRONMENTAL Operating Temp. Range, Case SHM-49MC/GC 0 to +70°C SHM-49MM/GM –55 to +125°C Storage Temperature Range –65 to +150°C Thermal Impedance Qjc 15°C/W Qca 35°C/W Package Type 8-pin ceramic DIP (MC/MM) or SMT (GC/GM) Footnotes: ~ Full Scale (FS) = 10V. Full Scale Range (FSR) = 20V.  Sample-to-hold offset error (pedestal) is constant regardless of input/output level. TECHNICAL NOTES 1. 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. 2. External 0.1μF to 4.7μF tantalum bypass capacitors are required in critical applications. 3. A logic 1 on S/H puts the unit in the sample mode. A logic 0 puts the unit in hold mode. 4. The maximum capacitive load to avoid oscillation is typically 250pF. Recommended resistive load is 500Ω, although values as low as 250Ω may be used. Acquisition and sample-to-hold settling times are relatively unaffected by resistive loads down to 250Ω and capacitive loads up to 50pF. Greater load capacitances will affect both acquisition and settling time. 5. Gain and offset adjusting can be accomplished using the external cir- cuitry 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. ANALOG INPUT/OUTPUT MIN. TYP. MAX. UNITS Input/Output Voltage Range ±15V Nominal Supply ±10 ±11.5 — Volts ±12V Nominal Supply ±7 ±8.5 — Volts Input Impedance — 1000 — 7 Output Current — — ±65 mA Output Impedance — 0.1 — 7 Capacitive Load 100 250 — pF DIGITAL INPUT Input Logic Levels Logic 1 +2.0 — +5.0 Volts Logic 0 0 — +0.8 Volts Loading Logic 1 — — +5 μA Logic 0 — — –5 μA TRANSFER CHARACTERISTICS Gain — –1 — V/V Gain Error, +25°C — ±0.05 ±0.5 % Linearity Error ~ — ±0.005 ±0.01 %FS Sample Mode Offset , +25°C — ±2 7 mV Sample-to-Hold Offset (Pedestal), +25°C  — ±2.5 ±25 mV Gain Drift — ±0.5 ±15 ppm/°C Sample Mode Offset Drift ~ — ±3 ±15 ppm of FSR/°C Sample-to-Hold Off. (Pedestal) Drift — ±5 ±20 ppm of FSR/°C DYNAMIC CHARACTERISTICS Acquisition Time 10V to ±0.01%FS (±1 mV) +25°C — 160 200 ns –55 to +125°C — — 265 ns 10V to ±0.1%FS (±10 mV) +25°C — 100 150 ns –55 to +125°C — — 215 ns 10V to ±0.01%FS (±100 mV) — 90 — ns 1V to ±1%FS (±10 mV) — 75 — ns Sample-to-Hold Settling Time 10V to ±1%FS (±100 mV) — 60 100 ns 1V to ±0.01%FS (±10 mV) — 40 80 ns Sample-to-Hold Transient — 100 — mVp-p Aperture Delay Time — 10 15 ns Aperture Uncertainty (Jitter) — ±25 ±50 ps Output Slew Rate ±200 ±300 — V/μs Small Signal BW (–3dB) 10 16 — MHz Output Droop 0 to +70°C — ±15 ±30 μV/μs Feedthrough Rejection 69 74 — dB

notice. © 2008 Murata Power Solutions, Inc. Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Figure 2. Offset and Gain Adjustments