Overview
The TLC2254AIDRG4 is a quadruple operational amplifier from Texas Instruments, part of the TLC225x family. This device is known for its rail-to-rail output performance, which enhances the dynamic range in both single and split-supply applications. The TLC2254AIDRG4 is designed with Advanced LinCMOS technology, offering very low power consumption of 35 µA per channel, making it ideal for battery-powered and low-power applications. It also features improved noise performance, with a noise level of 19 nV/√Hz at 1 kHz, which is significantly lower than many competitive micropower solutions.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VDD±) | ±2.2 | ±8 | V | ||
| Input Offset Voltage (VIO) | At 25°C | 200 | 1500 | 1750 | µV |
| Input Offset Current (IIO) | At 25°C | 0.5 | 60 | pA | |
| Input Bias Current (IIB) | At 25°C | 1 | 60 | pA | |
| Common-Mode Input Voltage Range (VICR) | At 25°C | 0 to 4.2 | V | ||
| Operating Free-Air Temperature (TA) | –40 | 125 | °C | ||
| Supply Current (IDD) | At 25°C, No Load | 70 | 125 | µA | |
| Maximum Positive Peak Output Voltage (VOM+) | IO = –100 µA | 4.93 | 4.7 | V | |
| Maximum Negative Peak Output Voltage (VOM–) | IO = 100 µA | –4.85 | –4.91 | –4.7 | V |
Key Features
- Rail-to-Rail Output Performance: Enhances dynamic range in single or split-supply applications.
- Low Power Consumption: Only 35 µA of supply current per channel, suitable for battery-powered applications.
- Improved Noise Performance: Noise level of 19 nV/√Hz at 1 kHz, significantly lower than many competitive micropower solutions.
- High Input Impedance: Ideal for small-signal conditioning from high-impedance sources like piezoelectric transducers.
- Low Input Offset Voltage: Maximum input offset voltage of 850 µV, with a temperature coefficient of 0.5 µV/°C.
- Wide Operating Temperature Range: From –40°C to 125°C, making it versatile for various environmental conditions.
- High Common-Mode Rejection Ratio (CMRR): Up to 88 dB, ensuring good rejection of common-mode signals.
Applications
- Battery-Powered Devices: Ideal for hand-held monitoring and remote-sensing applications due to low power consumption.
- Analog-to-Digital Converters (ADCs): Suitable for interfacing with ADCs due to rail-to-rail output performance.
- High-Impedance Sources: Excellent for small-signal conditioning from sources like piezoelectric transducers.
- Precision Applications: Suitable for precision applications requiring low input offset voltage and high CMRR.
- General Analog Signal Processing: Can be used in a wide range of analog signal processing applications requiring low power and high performance.
Q & A
- What is the typical supply current per channel for the TLC2254AIDRG4?
The typical supply current per channel is 35 µA.
- What is the maximum input offset voltage for the TLC2254AIDRG4?
The maximum input offset voltage is 850 µV at 25°C.
- What is the noise level of the TLC2254AIDRG4 at 1 kHz?
The noise level is 19 nV/√Hz at 1 kHz.
- What is the common-mode input voltage range for the TLC2254AIDRG4?
The common-mode input voltage range is from 0 to 4.2 V.
- What is the operating free-air temperature range for the TLC2254AIDRG4?
The operating free-air temperature range is from –40°C to 125°C.
- What is the maximum positive peak output voltage for the TLC2254AIDRG4?
The maximum positive peak output voltage is approximately 4.93 V when IO = –100 µA.
- What is the common-mode rejection ratio (CMRR) for the TLC2254AIDRG4?
The CMRR is up to 88 dB.
- Is the TLC2254AIDRG4 suitable for battery-powered applications?
Yes, it is highly suitable due to its low power consumption.
- Can the TLC2254AIDRG4 be used with analog-to-digital converters (ADCs)?
Yes, it is suitable for interfacing with ADCs due to its rail-to-rail output performance.
- What are some typical applications for the TLC2254AIDRG4?
Typical applications include battery-powered devices, high-impedance source signal conditioning, and precision analog signal processing.
