OPA137N

The OPA137 series FET-input operational amplifiers are designed for low cost and miniature applications. High performance, including linearity, is maintained as the amplifiers swing to their specified limits. In addition, the combination of high slew rate(3. 5V/s)and wide bandwidth(1MHz)provide fast settling time assuring good dynamic response. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction. In addition to small size(SOT-23-5 and MSOP-8 packages), they provide low input bias current(5pA), low quiescent currrent(220A/ channel), and high open-loop gain(94dB). The input common-mode voltage range includes the positive supply-suitable for many single-supply applications. Either single(+4. 5V to+36V)or dual(±2. 25 to±18V) supplies can be used. The single(OPA137)packages are the tiny 5-lead SOT-23-5 surface mount, SO-8 surface mount, and 8-pin DIP. The dual (OPA2137)comes in the miniature MSOP-8 surface mount, SO-8 surface mount, and 8-pin DIP packages. The quad (OPA4137)packages are the SO-14 surface mount and the 14-pin DIP. All are specified from-40°C to+85°C and operate from-55°C to+125°C. A SPICE macromodel is available for design analysis. Single, dual, and quad versions have identical specifications for maximum design flexibility. OPA137 op amps are easy to use and free from phase inversion and overload problems found in some FET-input amplifiers.

The features of OPA137N can be summarized as (1)fet input: IB=5pA; (2)low offset voltage: 1. 5mV; (3)wide supply range: ±2. 25V to ±18V; (4)low quiescent current: 220A/channel; (5)excellent speed/power: 1MHz; (6)input to positive supply; (7)microsize packages: SOT-23-5, MSOP-8; (8)single, dual, and quad.

The absolute maximum ratings of OPA137N are (1)supply voltage, V+to V-: 36V; (2)input voltage: (V-)-0.7V to (V+)+ 0.7V; (3)input current: 2mA; (4)output short-circuit: continuous; (5)operating temperature: -55°C to +125°C; (6)storage temperature: -55°C to +125°C; (7)junction temperature: +150°C; (8)lead temperature (soldering, 10s): 300°C(NOTE: (1) Stresses above these ratings may permanent damage. Exposure to absolute maximum ratings for extended periods may affact device reliability. (2) Short circuit to ground, one amplifier per package.).