SHM-4860 Industry-Standard, High-Speed ±0.01% Sample-Hold Amplifiers FEATURES PRODUCT OVERVIEW 200ns Maximum acquisition time DATEL’s SHM-4860 is a high-speed, highly accurate sample hold amplifier designed for precision, high-speed analog signal processing applications. Manufactured using modern, high quality hybrid technology, the SHM-4860 features excellent dynamic specifications including a maximum acquisition time of only 200ns for a 10V step to ±0.01%. Sample-to-hold settling time, to ±0.01% accuracy, is 100ns maximum with an aperture uncertainty of ±50ps. ±0.01% Accuracy 100ns Maximum sample-hold settling time 74dB Feedthrough attenuation ±50ps Aperture uncertainty Industry standard The SHM-4860 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. SIMPLIFIED SCHEMATIC 1k CH 1k INPUT 13 1 OUTPUT + 9 +5V SUPPLY 24 +15V SUPPLY HOLD COMMAND 11 SWITCH DRIVER HOLD COMMAND 12 10 15 22 –15V SUPPLY 23 21 SYSTEM GROUND INTERNAL SUPPLY BYPASS CAPACITORS Figure 1. Functional Block Diagram For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MDA_SHM-4860.B01 Page 1 of 4 SHM-4860 Industry-Standard, High-Speed ±0.01% Sample-Hold Amplifiers ORDERING GUIDE SUMMARY Model Number SHM-4860MC SHM-4860MM SHM-4860/883 INPUT/OUTPUT CONNECTIONS PIN FUNCTION Operating Temperature Range 0 to +70°C –55 to +125°C –55 to +125°C PIN FUNCTION 1 OUTPUT 24 +15V SUPPLY 2 N.C. 23 GROUND 3 N.C. 22 –15V SUPPLY 4 N.C. 21 GROUND 5 N.C. 20 N.C. 6 N.C. 19 N.C. 7 N.C. 18 N.C. 8 N.C. 17 N.C. 9 +5V SUPPLY 16 N.C. 10 GROUND 15 GROUND 11 HOLD COMMAND 14 N.C. 12 HOLD COMMAND 13 INPUT MECHANICAL SPECIFICATIONS 24-PIN DDIP 1.31 MAX. (33.27) 24 (unless otherwise indicated): 2 place decimal (.XX) ±0.010 (±0.254) 3 place decimal (.XXX) ±0.005 (±0.127) 13 0.80 MAX. (20.32) 1 Kovar alloy 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating 12 0.100 TYP. (2.540) 1.100 (27.940) 0.235 MAX. (5.969) 0.200 MAX. (5.080) +0.002 0.010 –0.001 (0.254) 0.190 MAX. (4.826) 0.018 ±0.002 (0.457) 0.100 (2.540) 0.040 (1.016) SEATING PLANE 0.025 (0.635) 0.600 ±0.010 (15.240) 0.100 (2.540) Dimensions in inches (mm) www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MDA_SHM-4860.B01 Page 2 of 4 SHM-4860 Industry-Standard, High-Speed ±0.01% Sample-Hold Amplifiers DYNAMIC CHARACTERISTICS , Continued ABSOLUTE MAXIMUM RATINGS I±15V Supply Voltages, Pins 24, 22 ±18V Aperture Delay Time — 6 — ns Aperture Uncertainty (Jitter) — ±50 — ps +5V Supply Voltage, Pin 9 –0.5V to +7V Output Slew Rate — ±300 — μV/μs Analog Input, Pin 13 ±18V Output Slew Rate — ±300 — μV/μs Digital Inputs, Pins 11, 12 –0.5V to +7V Small Signal Bandwidth (–3dB) — 16 — MHz Output Current ±65mA Droop: +25°C — ±0.5 ±5 μV/μs +70°C — ±15 — μV/μs +125°C — ±1.2 — mV/μs — 74 — dB — 200 — ns — 700 — ns Functional Specifications Feedthrough Attenuation (Typical at +25°C with ±15V and +5V supplies unless otherwise noted.) ANALOG INPUT/OUTPUT Overload Recovery Time MIN. TYP. MAX. UNITS Positive Input/Output Voltage Range ±10.25 ±11.25 — V Negative Input Impedance — 1 — kΩ Output Current — — ±40 mA 0.1 — kΩ 250 — pF Output Impedance Maximum Capacitive Load — DIGITAL INPUT POWER REQUIREMENTS Voltage Range: ±15V Supplies +5V Supply Power Supply Rejection Ratio — ±3 — % — ±5 — % — ±0.5 — mV/V — +21 +25 mA Quiescent Current Drain Input Logic Level +15V Supply Logic "1" +2.0 — +5.0 V –15V Supply — –22 –25 mA Logic "0" 0 — +0.8 V +5V Supply — +17 +25 mA — 730 875 mW Logic "1" — — +40 μA Logic "0" — — –1.6 mA Loading Power Consumption TRANSFER CHARACTERISTICS — –1 — V/V Gain Accuracy — ±0.05 ±0.1 % Gain Linearity Error — ±0.005 ±0.01 Sample-Mode Offset Voltage — ±0.5 Sample-to-Hold Offset Error (Pedestal) — ±2.5 0 to +70°C (ambient) SHM-4860MM, 883 –55 to +125°C (case) Storage Temperature Range –65 to +150°C %FS Package Type 24-pin ceramic DDIP ±5 mV Output ±20 mV Gain Tempco (Drift) — ±0.5 ±5 ppm/°C Sample-Mode Offset Drift — ±3 ±15 — ±4 — DYNAMIC CHARACTERISTICS Acquisition Time 10V to ±0.01%FS — 160 200 ns 10V to ±0.1%FS — 100 170 ns 10V to ±1%FS — 90 — ns 1V to ±1%FS — 75 — ns 10V to ±0.01%FS — 60 100 ns 10V to ±0.1%FS — 40 — ns — 180 — mV p-p Sample-to-Hold Settling Time Sample-to-Hold Transient Operating Temperature Ranges SHM-4860MC Gain Sample-to-Hold Offset Drift PHYSICAL/ENVIRONMENTAL www.murata-ps.com Footnotes: Input signal should not exceed the supply voltage. The SHM-4860’s output is current limited at approximately ±65mA. The device can withstand a sustained short to ground. However, shorts from the output to either supply will cause permanent damage. For normal operation, the load current should not exceed ±40mA. Full Scale (FS) = 10V. Full Scale Range (FSR) = 20V. Sample-to-Hold Offset Error (Pedestal) is constant regardless of input/output level. Units are ppm of FSR/°C. TECHNICAL NOTES 1. All ground pins (10, 15, 21, 23) 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 all four ground pins directly to it. Care must be taken to ensure that no ground potentials can exist between Pin 10 and the other ground pins. 2. Although the power supply pins (9, 22, 24) are internally bypassed to ground with 0.01μF ceramic capacitors, additional external 0.1μF to 1μF tantalum bypass capacitors may be required in critical applications. 3. A logic "0" on the HOLD COMMAND input (Pin 11), or a logic "1" on the HOLD COMMAND input (Pin 12), will put the device in the sample mode. In this mode, the device acts as an inverting unity-gain amplifier, and its output will track its input. A logic "1" on Pin 11 (logic "0" on Pin 12) will put the device in the hold mode, and the output will be held constant at the last input level present when the hold command was given. If the HOLD COMMAND input (Pin 11) is used to control the device, Pin 12 must be tied to digital ground. If HOLD COMMAND input (Pin 12) is used to control the device, Pin 11 must be tied to +5V. 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. However, higher capacitances will affect both acquisition and settling time. Technical enquiries email: [email protected], tel: +1 508 339 3000 MDA_SHM-4860.B01 Page 3 of 4 SHM-4860 Industry-Standard, High-Speed ±0.01% Sample-Hold Amplifiers USA: Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: [email protected] ISO 9001 REGISTERED 10/01/08 Murata Power Solutions, 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. © 2008 Murata Power Solutions, Inc. www.murata-ps.com Mansfield (MA), Tel: (508) 339-3000, email: [email protected] Canada: Toronto, Tel: (866) 740-1232, email: [email protected] UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] Singapore: Parkway Centre, Tel: +65 6348 9096, email: [email protected] Technical enquiries email: [email protected], tel: +1 508 339 3000 MDA_SHM-4860.B01 Page 4 of 4