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See Technical Specifications

OPA861ID

Wide Bandwidth Operational Transconductance Amplifier

Manufacturer: Texas Instruments, Inc
Mfr.Part #: OPA861ID
Datasheet: OPA861ID Datasheet (PDF)
Amplifier Type: Transconductance
Number of Circuits: 1
Slew Rate: 900V/µs
Gain Bandwidth Product: 80 MHz
EDA/CAD Models: Request Free CAD Models for OPA861ID

Email: [email protected]

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Tel: +852 95804164

OPA861ID General Description

The OPA861 is a versatile monolithic component designed for wide-bandwidth systems, including high performance video, RF and IF circuitry. The OPA861 is a wideband, bipolar operational transconductance amplifier (OTA).

The OTA or voltage-controlled current source can be viewed as an ideal transistor. Like a transistor, it has three terminals—a high impedance input (base), a low-impedance input/output (emitter), and the current output (collector). The OPA861, however, is self-biased and bipolar. The output collector current is zero for a zero base-emitter voltage. AC inputs centered about zero produce an output current, which is bipolar and centered about zero. The transconductance of the OPA861 can be adjusted with an external resistor, allowing bandwidth, quiescent current, and gain trade-offs to be optimized.

Used as a basic building block, the OPA861 simplifies the design of AGC amplifiers, LED driver circuits for fiber optic transmission, integrators for fast pulses, fast control loop amplifiers and control amplifiers for capacitive sensors, and active filters. The OPA861 is available in SO-8 and SOT23-6 surface-mount packages.

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Key Features

Wide Bandwidth (80MHz, Open-Loop, G = +5)
High Slew Rate (900V/µs)
High Transconductance (95mA/V)
External I_Q-Control
Low Quiescent Current (5.4mA)

APPLICATIONS

Video/Broadcast Equipment
Communications Equipment
High-Speed Data Acquisition
Wideband LED Drivers
Control Loop Amplifiers
Wideband Active Filters
Line Drivers

Specifications

Category	Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps	Mfr	Texas Instruments
Series	-	Package	Tube
Product Status	Active	Amplifier Type	Transconductance
Number of Circuits	1	Output Type	-
Slew Rate	900V/µs	Gain Bandwidth Product	80 MHz
Current - Input Bias	1 µA	Voltage - Input Offset	3 mV
Current - Supply	5.4mA	Current - Output / Channel	15 mA
Voltage - Supply Span (Min)	4 V	Voltage - Supply Span (Max)	12.6 V
Operating Temperature	-40°C ~ 85°C	Mounting Type	Surface Mount
Supplier Device Package	8-SOIC	Base Product Number	OPA861