Overview
The TLC277IDR is a precision dual operational amplifier produced by Texas Instruments. It utilizes Texas Instruments' LinCMOS technology, which offers high input impedance, low bias currents, and low noise, making it suitable for a variety of precision applications. The TLC277IDR is known for its low input offset voltage and drift, as well as its wide range of supply voltages and single-supply operation capabilities. This device is ideal for applications requiring high precision and stability, such as transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value |
|---|---|---|---|
| Input Offset Voltage | 500 µV | - | 500 µV at 25°C, VDD = 5 V |
| Input Offset Voltage Drift | 0.1 µV/Month | - | - |
| Supply Voltage Range | 4 V to 16 V | 4 V | 16 V (–40°C to 85°C) |
| Common-Mode Input Voltage Range | -0.2 to 4 V | -0.2 V | 4 V at 25°C |
| High-Level Output Voltage | 7.8 V | 7.8 V | 8.5 V at VID = 100 mV, RL = 10 kΩ |
| Low-Level Output Voltage | 0 V | 0 V | 50 mV at VID = –100 mV, IOL = 0 |
| Input Bias Current | 0.6 pA | 0.6 pA | 60 pA at VO = 2.5 V, VIC = 2.5 V |
| Input Offset Current | 0.1 pA | 0.1 pA | 60 pA at 25°C |
| Common-Mode Rejection Ratio (CMRR) | 65 dB | 60 dB | 95 dB at VIC = VICRmin |
| Supply-Voltage Rejection Ratio (kSVR) | 1.9 dB | 1.9 dB | 4 dB at VDD = 5 V to 10 V, VO = 1.4 V |
Key Features
- Low Input Offset Voltage and Drift: The TLC277IDR features a low input offset voltage of 500 µV and a drift of typically 0.1 µV/Month, ensuring high precision over time.
- Wide Supply Voltage Range: Operates over a wide range of supply voltages from 4 V to 16 V, making it versatile for various applications.
- Single-Supply Operation: Capable of operating with a single supply, which is ideal for battery-powered and remote applications.
- High Input Impedance: Offers high input impedance of 10^12 Ω, reducing the impact on the input signal.
- Low Noise: Typically 25 nV/√Hz at f = 1 kHz, making it suitable for noise-sensitive applications.
- ESD Protection: Includes internal ESD-protection circuits that prevent functional failures up to 2000 V as tested under MIL-STD-883C, Method 3015.2.
- Latch-Up Immunity: Designed to withstand –100-mA surge currents without sustaining latch-up.
Applications
The TLC277IDR is suitable for a variety of applications, including:
- Transducer Interfacing: Ideal for interfacing with transducers due to its high precision and stability.
- Analog Calculations: Used in analog calculation circuits where low offset voltage and drift are critical.
- Amplifier Blocks: Suitable for general-purpose amplifier blocks requiring high precision.
- Active Filters: Used in active filter designs where low noise and high stability are necessary.
- Signal Buffering: Effective for signal buffering applications due to its high input impedance and low bias currents.
Q & A
- What is the typical input offset voltage of the TLC277IDR?
The typical input offset voltage of the TLC277IDR is 500 µV at 25°C with a supply voltage of 5 V. - What is the input offset voltage drift of the TLC277IDR?
The input offset voltage drift is typically 0.1 µV/Month. - What is the supply voltage range for the TLC277IDR?
The TLC277IDR operates over a supply voltage range of 4 V to 16 V. - Does the TLC277IDR support single-supply operation?
Yes, the TLC277IDR supports single-supply operation. - What is the common-mode input voltage range for the TLC277IDR?
The common-mode input voltage range is –0.2 V to 4 V at 25°C. - What is the high-level output voltage of the TLC277IDR?
The high-level output voltage is typically 7.8 V to 8.5 V at VID = 100 mV, RL = 10 kΩ. - What is the input bias current of the TLC277IDR?
The input bias current is typically 0.6 pA at VO = 2.5 V, VIC = 2.5 V. - Does the TLC277IDR have ESD protection?
Yes, the TLC277IDR includes internal ESD-protection circuits. - What are some common applications of the TLC277IDR?
The TLC277IDR is commonly used in transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering. - What is the typical noise level of the TLC277IDR?
The typical noise level is 25 nV/√Hz at f = 1 kHz.
