Overview
The TLC274CPWR is a quad operational amplifier produced by Texas Instruments. It is part of the TLC274 and TLC279 family, which combines a wide range of input offset voltage grades with low offset voltage drift, high input impedance, low noise, and speeds approaching those of general-purpose BiFET devices. These amplifiers utilize Texas Instruments' silicon-gate LinCMOS technology, providing offset voltage stability that exceeds conventional metal-gate processes. The TLC274CPWR is particularly suited for applications requiring high input impedance, low bias currents, and high slew rates, making it an ideal choice for transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | TSSOP (PW) | - |
| Pins | 14 | - |
| Operating Temperature Range | 0°C to 70°C (C-suffix), -40°C to 85°C (I-suffix), -55°C to 125°C (M-suffix) | °C |
| Supply Voltage Range | 3 V to 16 V (0°C to 70°C), 4 V to 16 V (-40°C to 85°C and -55°C to 125°C) | V |
| Input Offset Voltage | Typically 10 mV (TLC274C), up to 900 µV (TLC279C) | mV/µV |
| Input Offset Voltage Drift | Typically 0.1 µV/Month | µV/Month |
| Common-Mode Input Voltage Range | -0.2 V to 4.2 V (at 25°C) | V |
| High-Level Output Voltage | Typically 3.8 V (at 25°C, VDD = 5 V) | V |
| Low-Level Output Voltage | Typically 50 mV (at 25°C, VDD = 5 V) | mV |
| Input Bias Current | Typically 0.6 pA (at 25°C) | pA |
| Noise | Typically 25 nV/Hz at f = 1 kHz | nV/Hz |
Key Features
- Trimmed Offset Voltage: Available in various grades, including 10 mV for the TLC274 and 900 µV for the TLC279.
- Low Offset Voltage Drift: Typically 0.1 µV/Month, including the first 30 days.
- Wide Range of Supply Voltages: Operates from 3 V to 16 V over specified temperature ranges.
- Single-Supply Operation: Suitable for remote and inaccessible battery-powered applications.
- High Input Impedance: Typically 10^12 Ω.
- Low Noise: Typically 25 nV/Hz at f = 1 kHz.
- Output Voltage Range Includes Negative Rail: Ensures full output swing.
- ESD-Protection Circuitry: Protects against functional failures up to 2000 V as tested under MIL-STD-883C, Method 3015.2.
- Designed-In Latch-Up Immunity: Prevents latch-up during surge currents.
Applications
- Transducer Interfacing: Ideal for interfacing with various types of transducers due to its high input impedance and low noise.
- Analog Calculations: Suitable for analog calculations and signal processing tasks.
- Amplifier Blocks: Can be used in various amplifier configurations.
- Active Filters: Used in the design of active filters due to its stability and precision.
- Signal Buffering: Effective for signal buffering applications requiring low noise and high input impedance.
- Battery-Powered Applications: Suitable for remote and inaccessible battery-powered applications due to single-supply operation.
Q & A
- What is the TLC274CPWR?
The TLC274CPWR is a quad operational amplifier from Texas Instruments, part of the TLC274 and TLC279 family, known for its high input impedance, low noise, and wide range of supply voltages.
- What are the key features of the TLC274CPWR?
Key features include trimmed offset voltage, low offset voltage drift, wide range of supply voltages, single-supply operation, high input impedance, low noise, and ESD-protection circuitry.
- What are the operating temperature ranges for the TLC274CPWR?
The operating temperature ranges are 0°C to 70°C (C-suffix), -40°C to 85°C (I-suffix), and -55°C to 125°C (M-suffix).
- What is the typical input offset voltage for the TLC274CPWR?
The typical input offset voltage is 10 mV for the TLC274C and can be as low as 900 µV for the TLC279C.
- What is the common-mode input voltage range for the TLC274CPWR?
The common-mode input voltage range is -0.2 V to 4.2 V at 25°C.
- Does the TLC274CPWR have ESD protection?
Yes, the TLC274CPWR includes internal ESD-protection circuits that protect against functional failures up to 2000 V as tested under MIL-STD-883C, Method 3015.2.
- What are some typical applications for the TLC274CPWR?
Typical applications include transducer interfacing, analog calculations, amplifier blocks, active filters, signal buffering, and battery-powered applications.
- What is the package type for the TLC274CPWR?
The TLC274CPWR comes in a 14-pin TSSOP (PW) package.
- What is the noise level of the TLC274CPWR?
The noise level is typically 25 nV/Hz at f = 1 kHz.
- Is the TLC274CPWR suitable for high-density system applications?
Yes, it is available in small-outline and chip-carrier versions for high-density system applications.
