OP07C Datasheet, PDF (7/21 Pages) STMicroelectronics – VERY LOW OFFSET SINGLE BIPOLAR OPERATIONAL AMPLIFIERS

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9 Detailed Description
OP07C, OP07D
SLOS099G – OCTOBER 1983 – REVISED NOVEMBER 2014
9.1 Overview
These devices offer low offset and long-term stability by means of a low-noise, chopperless, bipolar-input-
transistor amplifier circuit. For most applications, external components are not required for offset nulling and
frequency compensation. The true differential input, with a wide input-voltage range and outstanding common-
mode rejection, provides maximum flexibility and performance in high-noise environments and in noninverting
applications. Low bias currents and extremely high input impedances are maintained over the entire temperature
range.
These devices are characterized for operation from 0°C to 70°C.
9.2 Functional Block Diagram
VCC+
IN –
OUT
IN+
OFFSET N1
OFFSET N2
VCC _–
Component Count
Transistors 22
Resistors
11
Diode
1
Capacitor
1
9.3 Feature Description
9.3.1 Offset-Voltage Null Capability
The input offset voltage of operational amplifiers (op amps) arises from unavoidable mismatches in the
differential input stage of the op-amp circuit caused by mismatched transistor pairs, collector currents, current-
gain betas (β), collector or emitter resistors, et cetera. The input offset pins allow the designer to adjust for these
mismatches by external circuitry. See the Application and Implementation section for more details on design
techniques.
9.3.2 Slew Rate
The slew rate is the rate at which an operational amplifier can change its output when there is a change on the
input. The OP07 has a 0.3-V/μs slew rate.
9.4 Device Functional Modes
The OP07 is powered on when the supply is connected. It can be operated as a single supply operational
amplifier or dual supply amplifier depending on the application.
Copyright © 1983–2014, Texas Instruments Incorporated
Product Folder Links: OP07C OP07D
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