Overview
The TLC4502ACDR, produced by Texas Instruments, is a high-precision CMOS single-supply rail-to-rail operational amplifier. It is part of the TLC4501 and TLC4502 family, known for their exceptional precision and performance. These amplifiers feature self-calibrating circuitry that digitally trims the input offset voltage to less than 40 µV within the first 300 ms of operation, making them ideal for applications requiring high accuracy and stability.
Key Specifications
| Parameter | Typical | Minimum | Maximum | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VIO) | 10 µV | -40 µV | 40 µV | µV |
| Bandwidth | 4.7 MHz | - | - | MHz |
| Slew Rate at Unity Gain | 2.5 V/µs | 1.5 V/µs | - | V/µs |
| Supply Voltage (VDD) | 5 V | 4 V | 6 V | V |
| Operating Free-Air Temperature (TA) | - | -40°C | 125°C | °C |
| Common-Mode Input Voltage (VIC) | - | VDD- - 2.3 V | VDD+ - 2.3 V | V |
| Supply Current (IDD) | 2.5 mA | - | 4 mA | mA |
| High-Level Output Voltage (VOH) | 4.9 V | - | - | V |
| Low-Level Output Voltage (VOL) | 0.1 V | - | - | V |
| Common-Mode Rejection Ratio (CMRR) | 90 dB | 85 dB | 100 dB | dB |
Key Features
- Self-Calibrating Circuitry: Digitally trims the input offset voltage to less than 40 µV within the first 300 ms of operation.
- High Precision: Input offset voltage of 10 µV typical and 40 µV maximum.
- High Bandwidth and Slew Rate: 4.7 MHz bandwidth and 2.5 V/µs slew rate at unity gain.
- Rail-to-Rail Output: Capable of driving outputs to within 100 mV of the supply rails.
- Low Noise: Equivalent input noise voltage of 70 nV/√Hz at 10 Hz and 12 nV/√Hz at 1 kHz.
- High Common-Mode Rejection Ratio (CMRR): Up to 100 dB.
- Wide Operating Temperature Range: From -40°C to 125°C.
Applications
- Data Acquisition Systems: Ideal for high-precision data acquisition due to its low noise and high accuracy.
- Measurement Equipment: Used in various measurement instruments requiring precise signal amplification.
- Industrial Control Applications: Suitable for control systems that demand high precision and stability.
- Portable Digital Scales: Utilized in precision weighing applications where accuracy is crucial.
Q & A
- What is the typical input offset voltage of the TLC4502ACDR?
The typical input offset voltage is 10 µV.
- What is the bandwidth of the TLC4502ACDR?
The bandwidth is 4.7 MHz.
- What is the slew rate at unity gain for the TLC4502ACDR?
The slew rate at unity gain is 2.5 V/µs.
- What is the operating free-air temperature range for the TLC4502ACDR?
The operating free-air temperature range is from -40°C to 125°C.
- What is the common-mode rejection ratio (CMRR) of the TLC4502ACDR?
The CMRR is up to 100 dB.
- How does the self-calibrating circuitry work in the TLC4502ACDR?
The self-calibrating circuitry digitally trims the input offset voltage to less than 40 µV within the first 300 ms of operation and then shuts down, allowing the device to function as a standard operational amplifier.
- What are some typical applications of the TLC4502ACDR?
Typical applications include data acquisition systems, measurement equipment, industrial control applications, and portable digital scales.
- What is the supply voltage range for the TLC4502ACDR?
The supply voltage range is from 4 V to 6 V.
- What is the high-level output voltage of the TLC4502ACDR?
The high-level output voltage is approximately 4.9 V.
- How much current does the TLC4502ACDR typically consume?
The typical supply current is 2.5 mA.
