1 Features

1. Output Swing Includes Both Supply Rails

. Low Noise: 9 nV/√Hz Typical at f = 1 kHz

. Low-Input Bias Current: 1-pA Typical

. Fully-Specified for Both Single-Supply and Split-

Supply Operation

. Common-Mode Input Voltage Range Includes

Negative Rail

. High-Gain Bandwidth: 2.2-MHz Typical

. High Slew Rate: 3.6-V/μs Typical

. Low Input Offset Voltage: 950 μV Maximum at

TA = 25°C

. Macromodel Included

. Performance Upgrades for the TLC272 and

TLC274

. Available in Q-Temp Automotive

2 Applications

. White Goods (Refrigerators, Washing Machines)

. Hand-held Monitoring Systems

. Configuration Control and Print Support

. Transducer Interfaces

. Battery-Powered Applications

3 Description

The TLC2272 and TLC2274 are dual and quadruple

operational amplifiers from Texas Instruments. Both

devices exhibit rail-to-rail output performance for

increased dynamic range in single- or split-supply

applications. The TLC227x family offers 2 MHz of

bandwidth and 3 V/μs of slew rate for higher-speed

applications. These devices offer comparable AC

performance while having better noise, input offset

voltage, and power dissipation than existing CMOS

operational amplifiers. The TLC227x has a noise

voltage of 9 nV/√Hz, two times lower than competitive

solutions.

The TLC227x family of devices, exhibiting high input

impedance and low noise, is excellent for small-signal

conditioning for high-impedance sources such as

piezoelectric transducers. Because of the micropower

dissipation levels, these devices work well in handheld

monitoring and remote-sensing applications. In

addition, the rail-to-rail output feature, with single- or

split-supplies, makes this family a great choice when

interfacing with analog-to-digital converters (ADCs).

For precision applications, the TLC227xA family is

available with a maximum input offset voltage of

950 μV. This family is fully characterized at 5 V and

±5 V.

The TLC227x also make great upgrades to the

TLC27x in standard designs. They offer increased

output dynamic range, lower noise voltage, and lower

input offset voltage. This enhanced feature set allows

them to be used in a wider range of applications. For

applications that require higher output drive and wider

input voltage range, see the TLV2432 and TLV2442

devices.

If the design requires single amplifiers, see the

TLV2211, TLV2221 and TLV2231 family. These

devices are single rail-to-rail operational amplifiers in

the SOT-23 package. Their small size and low power

consumption make them ideal for high density,

battery-powered equipment.