Overview
The TLC2652ACN is a high-precision chopper-stabilized operational amplifier produced by Texas Instruments. It utilizes the Advanced LinCMOS process, which, in conjunction with unique chopper-stabilization circuitry, achieves extremely high DC precision. This makes the TLC2652ACN ideal for low-level signal processing applications such as strain gauges, thermocouples, and other transducer amplifiers. The device is known for its low offset voltage, low input offset current, and high common-mode rejection ratio (CMRR), making it suitable for both single-supply and split-supply configurations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Offset Voltage | 1 µV Max | µV |
| Temperature Coefficient of Input Offset Voltage | 0.003 µV/°C Typ | µV/°C |
| Input Offset Current | 500 pA Max at TA = -55°C to 125°C | pA |
| Large-Signal Differential Voltage Amplification (AVD) | 135 dB Min | dB |
| Common-Mode Rejection Ratio (CMRR) | 120 dB Min | dB |
| Supply Voltage Rejection Ratio (kSVR) | 110 dB Min | dB |
| Operating Temperature Range | 0°C to 70°C (C-suffix), -40°C to 85°C (I-suffix), -40°C to 125°C (Q-suffix), -55°C to 125°C (M-suffix) | °C |
| Package Type | 8-pin SOIC (D), 14-pin DIP (P, N), 20-pin DIP (P, N) |
Key Features
- Extremely low offset voltage: 1 µV Max
- Extremely low change on offset voltage with temperature: 0.003 µV/°C Typ
- Low input offset current: 500 pA Max at TA = -55°C to 125°C
- High large-signal differential voltage amplification (AVD): 135 dB Min
- High common-mode rejection ratio (CMRR): 120 dB Min
- High supply voltage rejection ratio (kSVR): 110 dB Min
- Single-supply operation with common-mode input voltage range including the negative rail
- No noise degradation with external capacitors connected to VDD-
- Fast overload recovery time with optional output clamp pin
- Internal ESD-protection circuits up to 2000 V as tested under MIL-STD-883C, Method 3015.2
Applications
The TLC2652ACN is particularly suited for low-level signal processing applications, including:
- Strain gauges
- Thermocouples
- Other transducer amplifiers
- Single-supply and split-supply configurations
Q & A
- What is the input offset voltage of the TLC2652ACN?
The input offset voltage of the TLC2652ACN is 1 µV Max.
- What is the temperature coefficient of the input offset voltage?
The temperature coefficient of the input offset voltage is 0.003 µV/°C Typ.
- What is the input offset current of the TLC2652ACN?
The input offset current is 500 pA Max at TA = -55°C to 125°C.
- Does the TLC2652ACN support single-supply operation?
Yes, the TLC2652ACN supports single-supply operation with a common-mode input voltage range that includes the negative rail.
- What is the common-mode rejection ratio (CMRR) of the TLC2652ACN?
The CMRR is 120 dB Min.
- How does the TLC2652ACN handle ESD protection?
The TLC2652ACN incorporates internal ESD-protection circuits that prevent functional failures at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015.2.
- What are the typical applications of the TLC2652ACN?
The TLC2652ACN is typically used in applications such as strain gauges, thermocouples, and other transducer amplifiers.
- Can the TLC2652ACN operate in a wide temperature range?
Yes, the TLC2652ACN is available in various temperature ranges, including 0°C to 70°C (C-suffix), -40°C to 85°C (I-suffix), -40°C to 125°C (Q-suffix), and -55°C to 125°C (M-suffix).
- Does the TLC2652ACN require external capacitors for operation?
Yes, two external capacitors are required for the operation of the device, but the on-chip chopper-control circuitry is transparent to the user.
- How does the TLC2652ACN handle overload recovery?
The TLC2652ACN features innovative circuit techniques for exceptionally fast overload recovery time, with an optional output clamp pin to reduce recovery time further.
