Datasheet AD600, AD602 (Analog Devices) - 4

AD600/AD602 AD600J/AD602J1 AD600A/AD602A
1
Parameter Conditions Min Typ Max Min Typ Max Unit
SIGNAL GATING INTERFACE Logic Input Low (Output On) 0.8 0.8 V Logic Input High (Output Off ) 2.4 2.4 V Response Time On to off, off to on 0.3 0.3 μs Input Resistance Pin 4 to Pin 3; Pin 5 to Pin 6 30 30 kΩ Output Gated Off Output Offset Voltage ±10
±100
±10
±400
mV Output Noise Spectral Density 65 65 nV/√Hz Signal Feedthrough @ 1 MHz AD600 −80 −80 dB AD602 −70 −70 dB POWER SUPPLY Specified Operating Range ±4.75 ±5.25 ±4.75 ±5.25 V Quiescent Current Each channel 11
12.5
11
14
mA 1 Specifications shown in
boldface
are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels. All minimum and maximum specifications are guaranteed, although only those shown in
boldface
are tested on all production units. 2 Typical open- or short-circuited input; noise is lower when the system is set to maximum gain and the input is short-circuited. This figure includes the effects of both voltage and current noise sources. 3 With an additional 1 kΩ pull-down resistor, if RL < 500 Ω. 4 The dc gain of the main amplifier in the AD600 is ×113; therefore, an input offset of only 100 μV becomes an 11.3 mV output offset. In the AD602, the amplifier gain is ×35.7; therefore, an input offset of 100 μV becomes a 3.57 mV output offset. Rev. F | Page 4 of 32 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION NOISE PERFORMANCE GAIN-CONTROL INTERFACE SIGNAL-GATING INPUTS COMMON-MODE REJECTION ACHIEVING 80 dB GAIN RANGE SEQUENTIAL MODE (MAXIMUM SNR) PARALLEL MODE (SIMPLEST GAIN-CONTROL INTERFACE) LOW RIPPLE MODE (MINIMUM GAIN ERROR) APPLICATIONS INFORMATION TIME-GAIN CONTROL (TGC) AND TIME-VARIABLE GAIN (TVG) INCREASING OUTPUT DRIVE DRIVING CAPACITIVE LOADS REALIZING OTHER GAIN RANGES ULTRALOW NOISE VCA LOW NOISE, 6 dB PREAMPLIFIER LOW NOISE AGC AMPLIFIER WITH 80 dB GAIN RANGE WIDE RANGE, RMS-LINEAR dB MEASUREMENT SYSTEM (2 MHz AGC AMPLIFIER WITH RMS DETECTOR) 100 dB TO 120 dB RMS RESPONDING CONSTANT BANDWIDTH AGC SYSTEMS WITH HIGH ACCURACY DECIBEL OUTPUTS 100 dB RMS/AGC SYSTEM WITH MINIMAL GAIN ERROR (PARALLEL GAIN WITH OFFSET) 120 dB RMS/AGC SYSTEM WITH OPTIMAL SNR (SEQUENTIAL GAIN) OUTLINE DIMENSIONS ORDERING GUIDE