Overview
The TLC2254AIDR is a quad operational amplifier from Texas Instruments, part of the TLC225x family. These devices are known for their high input impedance, low noise, and very low power consumption, making them ideal for small-signal conditioning in applications involving high-impedance sources such as piezoelectric transducers. The TLC2254AIDR operates with rail-to-rail output performance, suitable for both single-supply and split-supply configurations, and is fully characterized at 5 V and ±5 V. This amplifier is particularly useful in battery-powered applications due to its micropower operation, consuming only 35 µA of supply current per channel.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VIO) | 1500 µV | 200 µV | 1750 µV | µV |
| Input Bias Current (IIB) | 1 pA | 0.5 pA | 60 pA | pA |
| Common-Mode Input Voltage Range (VICR) | - | - | 4.2 V | V |
| Supply Current per Channel (Iq) | 35 µA | - | 62.5 µA | µA |
| Operating Temperature Range | - | -40°C | 125°C | °C |
| Gain-Bandwidth Product (GBW) | 0.2 MHz | - | - | MHz |
| Common Mode Rejection Ratio (CMRR) | 83 dB | 70 dB | - | dB |
| Output Current | 8 mA | - | - | mA |
| Noise Voltage | 19 nV/Hz at 1 kHz | - | - | nV/Hz |
Key Features
- High input impedance and low noise, making it excellent for small-signal conditioning.
- Rail-to-rail output performance for increased dynamic range in single or split-supply applications.
- Very low power consumption of 35 µA per channel, suitable for battery-powered applications.
- Low input bias current of 1 pA typical.
- Common-mode input voltage range includes the negative rail.
- Low input offset voltage with a maximum of 850 µV at 25°C.
- Macromodel included for simulation purposes.
- Performance upgrades for the TS27L2/L4 and TLC27L2/L4.
- Available in Q-Temp Automotive and HighRel Automotive Applications.
Applications
- Small-signal conditioning for high-impedance sources such as piezoelectric transducers.
- Battery-powered applications, including hand-held monitoring and remote-sensing devices.
- Interfacing with analog-to-digital converters (ADCs) due to rail-to-rail output feature.
- Precision applications requiring low noise and low input offset voltage.
- Upgrades to the TLC27L2/L4 or TS27L2/L4 in standard designs.
Q & A
- What is the typical supply current per channel for the TLC2254AIDR?
The typical supply current per channel is 35 µA.
- What is the input offset voltage range for the TLC2254AIDR?
The input offset voltage range is from 200 µV to 1750 µV.
- What is the common-mode input voltage range for the TLC2254AIDR?
The common-mode input voltage range includes the negative rail and extends up to 4.2 V.
- What is the gain-bandwidth product (GBW) of the TLC2254AIDR?
The gain-bandwidth product is 0.2 MHz.
- What is the typical noise voltage of the TLC2254AIDR at 1 kHz?
The typical noise voltage is 19 nV/Hz at 1 kHz.
- What are the operating temperature ranges for the TLC2254AIDR?
The operating temperature range is from -40°C to 125°C.
- Is the TLC2254AIDR suitable for battery-powered applications?
Yes, it is very suitable due to its low power consumption of 35 µA per channel.
- What are some common applications of the TLC2254AIDR?
Common applications include small-signal conditioning, battery-powered devices, and interfacing with ADCs.
- Does the TLC2254AIDR have rail-to-rail output performance?
Yes, it exhibits rail-to-rail output performance for both single-supply and split-supply configurations.
- Is the TLC2254AIDR available in automotive grades?
Yes, it is available in Q-Temp Automotive and HighRel Automotive Applications.
