Overview
The TLC271IDRG4 is a programmable low-power operational amplifier from Texas Instruments, utilizing their advanced LinCMOS technology. This device is part of the TLC271 series, which offers high input impedance, low offset voltage drift, and low noise, making it suitable for a wide range of applications. The TLC271IDRG4 is characterized for operation over the temperature range of –40°C to 85°C, marked by the 'I' suffix. It features a bias-select mode that allows users to optimize between power dissipation and AC performance, making it versatile for various design needs.
Key Specifications
| Parameter | Conditions | Typical Value | Unit |
|---|---|---|---|
| Input Offset Voltage (VIO) | VDD = 5 V, TA = 25°C | 2 mV (TLC271B), 5 mV (TLC271A), 10 mV (TLC271C) | mV |
| Input Offset Current (IIO) | VDD = 5 V, TA = 25°C | 0.1 - 60 pA | pA |
| Input Bias Current (IIB) | VDD = 5 V, TA = 25°C | 0.6 - 60 pA | pA |
| Common-Mode Input Voltage Range (VICR) | VDD = 5 V to 10 V | –0.2 to 4 V (or –0.3 to 9.2 V) | V |
| Supply Current (IDD) | No load, VDD = 5 V, TA = 25°C | 950 - 2200 µA | µA |
| Slew Rate (SR) | Unity gain, CL = 20 pF, VDD = 5 V | 3.6 V/µs (High bias), 0.4 V/µs (Medium bias), 0.03 V/µs (Low bias) | V/µs |
| Unity-Gain Bandwidth (B1) | VDD = 5 V, CL = 20 pF | 1.7 MHz (High bias), 0.5 MHz (Medium bias), 0.09 MHz (Low bias) | MHz |
| Phase Margin (φm) | VDD = 5 V, CL = 20 pF | 46° (High bias), 40° (Medium bias), 34° (Low bias) | ° |
Key Features
- Programmable Bias Mode: Allows selection of three bias levels to optimize between AC performance and power dissipation.
- Low Offset Voltage: Available in three offset voltage grades (C-suffix, A-suffix, B-suffix) with low drift over temperature.
- High Input Impedance: Ensures minimal loading on the input signal source.
- Low Noise: Low equivalent input noise voltage, making it suitable for high-precision applications.
- ESD Protection: Internal ESD-protection circuits to prevent functional failures up to 2000 V.
- Wide Operating Temperature Range: Characterized for operation from –40°C to 85°C (I-suffix) and –55°C to 125°C (M-suffix).
- Low Power Consumption: Extremely low power dissipation, especially in the low-bias mode.
- Single-Supply Operation: Can operate from a single supply voltage, making it ideal for battery-powered applications.
Applications
- Transducer Interfacing: Suitable for interfacing with various transducers due to its high input impedance and low noise.
- Analog Calculations: Can be used in analog computation circuits such as summing amplifiers and integrators.
- Amplifier Blocks: Ideal for general-purpose amplifier applications requiring low power and high precision.
- Active Filters: Used in active filter designs where low noise and high input impedance are crucial.
- Signal Buffering: Effective as a buffer amplifier to isolate and protect the input signal source.
- Battery-Powered Systems: Suitable for remote and inaccessible battery-powered applications due to its low power consumption.
Q & A
- What is the primary technology used in the TLC271IDRG4 operational amplifier?
The TLC271IDRG4 uses Texas Instruments' silicon-gate LinCMOS technology.
- What are the available offset voltage grades for the TLC271 series?
The TLC271 series is available in three offset voltage grades: C-suffix (10 mV), A-suffix (5 mV), and B-suffix (2 mV).
- How does the bias-select feature work in the TLC271IDRG4?
The bias-select feature allows users to select one of three bias levels to trade off between AC performance and power dissipation.
- What is the typical slew rate of the TLC271IDRG4 in high-bias mode?
The typical slew rate in high-bias mode is 3.6 V/µs.
- What is the common-mode input voltage range for the TLC271IDRG4?
The common-mode input voltage range is from –0.2 to 4 V (or –0.3 to 9.2 V) for VDD = 5 V to 10 V.
- Does the TLC271IDRG4 have built-in ESD protection?
- What are the typical supply current values for the TLC271IDRG4?
The typical supply current values range from 950 to 2200 µA, depending on the bias mode and temperature.
- Can the TLC271IDRG4 operate on a single supply voltage?
- What are some common applications of the TLC271IDRG4?
- What is the operating temperature range for the TLC271IDRG4?
