SHM-12LM

® ® SHM-12 Ultra-Fast, 12-Bit Linear Monolithic Sample-Hold Amplifiers IN N O V A T I O N a n d E X C E L L E N C E FEATURES • Fast acquisition time: 10ns to ±0.1% 15ns to ±0.024% 20ns to ±0.012% • ±0.006% Nonlinearity • 65µVrms output noise • 120MHz small signal bandwidth • 55MHz full power bandwidth • –80dB feedthrough • 1ps Aperture jitter • 250mW power dissipation • Low cost INPUT/OUTPUT CONNECTIONS (CLCC and SOIC-20 Packages) PIN 1 2 3 4 5 6 7 8 9 10 FUNCTION –5V SUPPLY –5V SUPPLY NOT CONNECTED ANALOG INPUT –5V SUPPLY DO NOT CONNECT –5V SUPPLY DO NOT CONNECT –5V SUPPLY –5V SUPPLY PIN 20 19 18 17 16 15 14 13 12 11 FUNCTION +5V SUPPLY SAMPLE/HOLD SAMPLE/HOLD +5V SUPPLY GROUND EXT. CAPACITOR GROUND +5V SUPPLY +5V SUPPLY ANALOG OUTPUT GENERAL DESCRIPTION The SHM-12 is an extremely high-speed and accurate monolithic sample-and-hold amplifier designed for fast data acquisition applications. The SHM-12 is accurate (±1LSB at 12 bits over the full military temperature range) and is very fast (10ns and 15ns acquisition times to accuracies of 10 and 12bits, respectively). With this high performance and a full power bandwidth of 55MHz, the SHM-12 is an ideal device for driving flash and high-resolution subranging A/D converters. A careful design optimizes the device for accuracy and speed over the full military temperature range. The droop rate is a low ±0.5mV/µs. The 30mA output current and guaranteed specifications for a 100Ω load provide high drive capability. Operating from ±5V supplies, the SHM-12 consumes only 250mW of power. The SHM-12 is built using a fast complementary bipolar process. The device is available in both military and industrial temperature ranges. The SHM-12 is packaged in a 20-pin plastic SOIC or ceramic LCC. –5V SUPPLY 1, 2, 5, 7, 9, 10 EXTERNAL HOLD CAPACITOR 15 +5V SUPPLY 12, 13, 17, 20 ANALOG INPUT 4 +1 CH 15pF +1 11 ANALOG OUTPUT 3 NOT CONNECTED SAMPLE/HOLD SAMPLE/HOLD 18 19 SWITCH DRIVE 6, 8 DO NOT CONNECT 14, 16 GROUND Figure 1. SHM-12 Functional Block Diagram DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.) • Tel: (508) 339-3000 Fax: (508) 339-6356 • For immediate assistance (800) 233-2765 ® ® SHM-12 ABSOLUTE MAXIMUM RATINGS PARAMETERS +5V Supply –5V Supply Analog Input LIMITS UNITS Volts Volts Volts Volts mA Volts °C °C 0 to +6 0 to –6 +5V Supply –1 –5V Supply +1 Continuous Output Current ±50 Digital Inputs