TI TLC2254AIDR

The TLC2252 and TLC2254 are dual and quadruple operational amplifiers. Both devices exhibit rail-to-rail output performance for increased dynamic range in single- or split-supply applications. The TLC225x family consumes only 35 μA of supply current per channel. This micropower operation makes them good choices for battery-powered applications. The noise performance has been dramatically improved over previous generations of CMOS amplifiers. The TLC225x has a noise level of 19 nV/√Hz at 1kHz; four times lower than competitive micropower solutions.

The TLC225x amplifiers, exhibiting high input impedance and low noise, are excellent for small-signal conditioning for high-impedance sources, such as piezoelectric transducers. Because of the micropower dissipation levels, these devices work well in hand-held 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 TLC225xA family is available and has a maximum input offset voltage of 850 μV. This family is fully characterized at 5 V and ±5 V.

The TLC2252/4 also makes great upgrades to the TLC27L2/L4 or TS27L2/L4 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.

• Output Swing Includes Both Supply Rails
• Low Noise... 19 nV/√Hz Typ at Ø = 1 kHz
• Low Input Bias Current... 1 pA Typ
• Fully Specified for Both Single-Supply and Split-Supply Operation
• Very Low Power... 35 μA Per Channel Typ
• Common-Mode Input Voltage Range Includes Negative Rail
• Low Input Offset Voltage 850 μV Max at TA = 25°C (TLC225xA)
• Macromodel Included
• Performance Upgrades for the TS27L2/L4 and TLC27L2/L4
• Available in Q–Temp Automotive HighRel Automotive Applications
• Configuration Control / Print Support
• Qualification to Automotive Standards

• Battery-powered equipment
• Small signal conditioning for high-impedance sources such as piezoelectric sensors
• Handheld monitoring equipment
• Remote sensing applications
• ADC interface
• High-density battery-powered equipment
• Drop-in replacement for TS27L2/L4 and TLC27L2/L4 legacy designs