Features: `FET INPUT: I B = 5pA
`LOW OFFSET VOLTAGE: 1.5mV
`WIDE SUPPLY RANGE: ±2.25V to ±18V
` LOW QUIESCENT CURRENT: 220A/channel
` EXCELLENT SPEED/POWER: 1MHz
`INPUT TO POSITIVE SUPPLY
` MicroSIZE PACKAGES: SOT-23-5, MSOP-8
`SINGLE, DUAL, AND QUADApplication·STRAIN GAGE AMPLIFIER
·PHOTODETECTOR AMPLIFIER
·PRECISION INTEGRATOR
·BATTERY-POWERED INSTRUMENT
·TEST EQUIPMENT
·ACTIVE FILTERSPinout
SpecificationsSupply Voltage, V+ to V-.....................................................................36V
Input Voltage.......................................................(V-) -0.7V to (V+) +0.7V
Input Current(2) ................................................................................2mA
Output Short-Circuit ...............................................................Continuous
Operating Temperature....................................................-50 to +125
Storage Temperature.......................................................-50 to +125
Junction Temperature....................................................................+150
Lead Temperature (soldering, 10s)..................................................300
NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum ratings for extended periods may affact device reliability. (2) Short circuit to ground, one amplifier per package.
DescriptionOPA137 series FET-input operational amplifiers are designed for low cost and miniature applications. 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).
Either single (+4.5V to +36V) or dual ( ±2.25 to ±18V) supplies can be used. The input common-mode voltage range includes the positive supply°(TM)suitable for many single-suppl applications. 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. High performance, including linearity, is main- tained 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 com- pletely independent circuitry for lowest crosstalk and freedom from interaction.
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 to +85 and operate from -50 to +125. A SPICE macromodel is available for design analysis.
OPA4137 Data Sheet
