Overview
The TLC274CDR, produced by Texas Instruments, is a quad operational amplifier that utilizes LinCMOS technology. This device is part of the TLC274 and TLC279 family, known for their high precision, low noise, and wide range of input offset voltage grades. The TLC274CDR is specifically designed for applications requiring low offset voltage drift, high input impedance, and single-supply operation. It is ideal for various analog applications such as transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
Key Specifications
| Parameter | Test Conditions | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VIO) | VO = 1.4 V, VIC = 0, 25°C | 1.1 | 10 | mV |
| Input Offset Voltage Drift (αVIO) | 25°C to 70°C | 1.8 | - | µV/°C |
| Input Offset Current (IIO) | 25°C | 0.1 | 60 | pA |
| Input Bias Current (IIB) | 25°C | 3.8 | 8 | pA |
| Supply Current (IDD) | VO = 5 V, No load, 25°C | 4.5 | 8.8 | mA |
| Supply Voltage Range | 0°C to 70°C | - | 3 V to 16 V | V |
| Common-Mode Input Voltage Range | - | - | Below the negative rail | - |
| Output Voltage Range | - | - | Includes negative rail | - |
| High Input Impedance | - | 10^12 | - | Ω |
| Noise | f = 1 kHz | 25 | - | nV/√Hz |
Key Features
- Low Offset Voltage and Drift: The TLC274CDR features a maximum input offset voltage of 10 mV and a low drift of 1.8 µV/°C, ensuring high precision over temperature variations.
- High Input Impedance: With an input impedance of 10^12 Ω, this device is suitable for applications requiring minimal input loading.
- Low Noise: The device exhibits low noise of typically 25 nV/√Hz at 1 kHz, making it suitable for sensitive analog circuits.
- Single-Supply Operation: The TLC274CDR can operate on a single supply voltage ranging from 3 V to 16 V, making it versatile for various power configurations.
- Wide Temperature Range: Available in different temperature ranges (0°C to 70°C, -40°C to 85°C, and -55°C to 125°C), this device can be used in a variety of environmental conditions.
- ESD Protection: The device includes internal ESD-protection circuits that can withstand up to 2000 V as per MIL-STD-883C, Method 3015.2.
- Latch-Up Immunity: Designed with latch-up immunity, the device inputs and outputs can withstand -100-mA surge currents without sustaining latch-up.
Applications
- Transducer Interfacing: Ideal for interfacing with various transducers due to its high input impedance and low noise.
- Analog Calculations: Suitable for analog calculations and signal processing in instrumentation and control systems.
- Amplifier Blocks: Can be used as amplifier blocks in audio and video circuits.
- Active Filters: Used in the design of active filters due to its stability and precision.
- Signal Buffering: Effective for signal buffering in remote and inaccessible battery-powered applications.
Q & A
- What is the maximum input offset voltage of the TLC274CDR?
The maximum input offset voltage of the TLC274CDR is 10 mV at 25°C.
- What is the typical noise level of the TLC274CDR at 1 kHz?
The typical noise level is 25 nV/√Hz at 1 kHz.
- What is the range of supply voltages for the TLC274CDR?
The device can operate on a single supply voltage ranging from 3 V to 16 V.
- What is the input impedance of the TLC274CDR?
The input impedance is typically 10^12 Ω.
- Does the TLC274CDR have ESD protection?
Yes, the device includes internal ESD-protection circuits that can withstand up to 2000 V.
- What are the temperature ranges available for the TLC274CDR?
The device is available for operation in temperature ranges of 0°C to 70°C, -40°C to 85°C, and -55°C to 125°C.
- Can the TLC274CDR operate on a single supply?
Yes, the device can operate on a single supply voltage.
- What is the common-mode input voltage range of the TLC274CDR?
The common-mode input voltage range extends below the negative rail.
- Is the TLC274CDR suitable for battery-powered applications?
Yes, it is suitable for remote and inaccessible battery-powered applications due to its low voltage single-supply operation.
- What are some common applications of the TLC274CDR?
Common applications include transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
