ADA4627-1

The ADA4627-1/ADA4637-1 are members of a growing series of high speed, precision op amps offered by Analog Devices, Inc. (see Table 1). The ADA4627-1/ADA4637-1 provide benefits previously found in few amplifiers. These amplifiers combine the best specifications of precision dc and high speed ac op amps. The ADA4637-1 is a decompensated version of the ADA4627-1 and is stable at a noise gain of 5 or greater. With a typical offset voltage of only 70 V, drift of less than 1 V/°C, and noise of only 0.86 V p-p (0.1 Hz to 10 Hz), the ADA4627-1/ADA4637-1 are suited for applications where error sources cannot be tolerated. The ADA4627-1/ADA4637-1 are wide bandwidth precision amplifiers featuring low noise, very low offset, drift, and bias current. The parts operate from ±5 V to ±15 V dual supply. The ADA4627-1/ADA4637-1 are specified for both the industrial temperature range of -25°C to +85°C and the extended industrial temperature range of -40°C to +125°C. The ADA4627-1/ ADA4637-1 are available in tiny 8-lead LFCSP and 8-lead SOIC packages.

The features of ADA4627-1 can be summarized as (1)low offset voltage: 200 V maximum; (2)offset drift: 1 V/°C typical; (3)very low input bias current: 5 pA maximum; (4)extended temperature range: -40°C to +125°C; (5)±5 V to ±15 V dual supply ADA4627-1 GBW: 19 MHz/ ADA4637-1 GBW: 79 MHz; (6)voltage noise: 6.1 nV/Hz at 1 kHz ADA4627-1 slew rate: 82 V/s/ ADA4637-1 slew rate: 170 V/s; (7)high gain: 120 dB typical; (8)high CMRR: 116 dB typical; (9)high PSRR: 112 dB typical.

The absolute maximum ratings of ADA4627-1 are (1)input voltage: 36 V; (2)input current: Range 1 (V-)- 0.3 V to (V+)+ 0.3 V; (3)differential input voltage: 1 ±10 mA; (4)differential input current: 2 ±V SY; (5)storage temperature range: indefinite; (6)junction temperature: -65°C to +150°C; (7)supply voltage: -40°C to +125°C; (8)lead temperature (soldering, 60 sec): -65°C to +150°C; (9)continuous power dissipation (TA = +70°C)10-Pin TDFN, single-layer board 300°C; (10)ESD human body model: 4 kV.