Overview
The THP210DGKR from Texas Instruments is an ultra-low-offset, low-noise, high-voltage, precision, fully differential amplifier. This device is designed to easily filter and drive fully differential signal chains, making it ideal for applications requiring high signal integrity and low power consumption. The THP210DGKR is particularly useful in converting single-ended sources to differential outputs, which is essential for high-resolution analog-to-digital converters (ADCs). Its bipolar super-beta inputs ensure very low noise figures at low quiescent current and input bias current, making it suitable for signal conditioning circuits where low power offset and excellent signal-to-noise ratio (SNR) are critical.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage | ±40 µV | µV | ||
| Input Offset Voltage Drift | 0.35 µV/°C | µV/°C | ||
| Supply Voltage (Dual Supply) | ±1.5 V | ±18 V | V | |
| Supply Current | 950 µA | µA | ||
| Common-Mode Rejection Ratio (CMRR) | 120 dB | 140 dB | dB | |
| Input Noise Voltage | 3.7 nV/√Hz | nV/√Hz | ||
| Operating Temperature Range | -40°C | 125°C | °C | |
| Junction Temperature Range | -40°C | 175°C | °C | |
| Storage Temperature Range | -65°C | 150°C | °C |
Key Features
- Ultra-low input offset voltage: ±40 µV (maximum)
- Low input offset voltage drift: 0.35 µV/°C (maximum)
- Low supply current: 950 µA at ±18 V
- High-voltage supply capability: up to ±18 V
- Low noise: 3.7 nV/√Hz at 1 kHz
- High common-mode rejection ratio (CMRR): up to 140 dB
- Power-down feature with logic control
- Output common-mode voltage control input
- Bipolar super-beta inputs for low noise and low quiescent current
Applications
- Signal conditioning circuits requiring low power offset and excellent signal-to-noise ratio (SNR)
- Conversion of single-ended sources to differential outputs for high-resolution analog-to-digital converters (ADCs)
- Lab and field instrumentation
- High-voltage differential signal chains
- Applications needing high headroom and dynamic range without additional amplifiers
Q & A
- What is the maximum input offset voltage of the THP210DGKR?
The maximum input offset voltage is ±40 µV.
- What is the input offset voltage drift of the THP210DGKR?
The input offset voltage drift is 0.35 µV/°C (maximum).
- What is the supply current of the THP210DGKR at ±18 V?
The supply current is 950 µA at ±18 V.
- What is the maximum supply voltage for the THP210DGKR?
The maximum supply voltage is ±18 V.
- What is the common-mode rejection ratio (CMRR) of the THP210DGKR?
The CMRR is up to 140 dB.
- Does the THP210DGKR have a power-down feature?
- What is the typical input noise voltage of the THP210DGKR?
The typical input noise voltage is 3.7 nV/√Hz at 1 kHz.
- What are the operating temperature ranges for the THP210DGKR?
The operating temperature range is from -40°C to 125°C.
- What are the storage temperature ranges for the THP210DGKR?
The storage temperature range is from -65°C to 150°C.
- What are some common applications of the THP210DGKR?
Common applications include signal conditioning circuits, conversion of single-ended sources to differential outputs for ADCs, lab and field instrumentation, and high-voltage differential signal chains.
