ADA4051-1

The ADA4051-1 amplifier is available in 5-lead SOT-23 and 5-lead SC-70 packages. The ADA4051-2 amplifier is available in 8-lead MSOP and 8-lead LFCSP packages. The ADA4051-1/ADA4051-2 are members of a growing series of zero-drift op amps offered by Analog Devices, Inc. Refer to Table 1 for a list of these devices. The ADA4051-1/ADA4051-2 are CMOS, micropower, zero- drift operational amplifiers utilizing an innovative chopping technique. These amplifiers feature rail-to-rail input/output swing and extremely low offset voltage while operating from a 1.8 V to 5.5 V power supply. In addition, these amplifiers offer high power supply rejection ratio (PSRR)and common-mode rejection ratio (CMRR)while operating with a typical supply current of 13 A per amplifier. This combination of features makes the ADA4051-1/ADA4051-2 amplifiers ideal choices for battery-powered applications where high precision and low power consumption are important. The ADA4051-1/ADA4051-2 are specified for the extended industrial temperature range of -40°C to +125°C.

The features of ADA4051-1 can be summarized as (1)very low supply current: 13 A typical; (2)low offset voltage: 15 V maximum; (3)offset voltage drift: 20 nV/°C; (4)single-supply operation: 1.8 V to 5.5 V; (5)high PSRR: 110 dB minimum; (6)high CMRR: 110 dB minimum; (7)rail-to-rail input/output; (8)unity-gain stable; (9)extended industrial temperature range.

The absolute maximum ratings of ADA4051-1 are (1)supply voltage: 6 V; (2)input voltage: ±V SY ± 0.3 V; (3)input current ±10 mA; (4)differential input voltage: ±V SY; (5)output short-circuit duration to GND: indefinite; (6)storage temperature range: -65°C to +150°C; (7)operating temperature range: -40°C to +125°C; (8)junction temperature range: -65°C to +150°C; (9)lead temperature (Soldering, 60 sec): 300°C.