Overview
The TSZ122IQ2T, part of the TSZ12x series from STMicroelectronics, is a high-precision dual operational amplifier. This component is renowned for its very low input offset voltage and virtually zero drift, making it ideal for applications requiring high accuracy and stability. The TSZ122IQ2T operates with a low supply voltage range of 1.8 to 5.5 V and consumes a maximum of 40 µA at 5 V, making it suitable for battery-powered and portable devices. The device features rail-to-rail input and output, a gain bandwidth product of 400 kHz, and high tolerance to ESD (4 kV HBM). It is available in various micro-packages, including DFN8 2x2 and QFN16 3x3, ensuring flexibility in design and implementation.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | 1.8 | 5.5 | V | ||
| Vio (Input Offset Voltage) | T = 25 °C | 1 | 5 | µV | |
| Vio (Input Offset Voltage) | -40 °C < T < 125 °C | 8 | µV | ||
| ΔVio/ΔT (Input Offset Voltage Drift) | -40 °C < T < 125 °C | 10 | 30 | nV/°C | |
| Iib (Input Bias Current) | T = 25 °C | 50 | 200 | pA | |
| Iio (Input Offset Current) | T = 25 °C | 100 | 400 | pA | |
| SR (Slew Rate) | 0.19 | V/μs | |||
| GBP (Gain Bandwidth Product) | RL = 10 kΩ, CL = 100 pF | 400 | kHz | ||
| ICC (Supply Current per Amplifier) | T = 25 °C, Vout = VCC/2, RL > 1 MΩ | 28 | 40 | µA | |
| Toper (Operating Temperature Range) | -40 | 125 | °C |
Key Features
- High Accuracy and Stability: Input offset voltage of 5 µV max at 25 °C and 8 µV over the full temperature range (-40 °C to 125 °C).
- Rail-to-Rail Input and Output: Ensures maximum signal range and flexibility in circuit design.
- Low Supply Voltage and Power Consumption: Operates with a supply voltage of 1.8 to 5.5 V and consumes a maximum of 40 µA at 5 V.
- High Gain Bandwidth Product: 400 kHz, suitable for applications requiring good frequency response.
- High ESD Tolerance: 4 kV HBM, enhancing the component's robustness against electrostatic discharge.
- Ultra-Low Input Bias Current: Minimizes the impact on the input signal, ensuring high precision in measurements.
- Extended Temperature Range: Operates from -40 °C to 125 °C, making it suitable for a wide range of environments.
Applications
- Battery-Powered Applications: Ideal for devices that require low power consumption and high accuracy.
- Portable Devices: Suitable for handheld and mobile devices due to its low power and compact packaging.
- Signal Conditioning: Used in circuits that require precise signal amplification and conditioning.
- Medical Instrumentation: High accuracy and stability make it suitable for medical devices that require precise measurements.
- Sensor Interfaces: Often used in sensor interfaces to amplify weak signals while maintaining high accuracy.
- Precision Instrumentation Amplifiers: Used in applications such as oxygen sensors and low-side current sensing.
Q & A
- What is the input offset voltage of the TSZ122IQ2T at 25 °C?
The input offset voltage is 5 µV max at 25 °C.
- What is the operating temperature range of the TSZ122IQ2T?
The operating temperature range is -40 °C to 125 °C.
- What is the supply voltage range for the TSZ122IQ2T?
The supply voltage range is 1.8 to 5.5 V.
- What is the maximum supply current per amplifier at 5 V?
The maximum supply current per amplifier is 40 µA at 5 V.
- Does the TSZ122IQ2T have rail-to-rail input and output capabilities?
- What is the gain bandwidth product of the TSZ122IQ2T?
The gain bandwidth product is 400 kHz).
- What is the slew rate of the TSZ122IQ2T?
The slew rate is 0.19 V/μs).
- Is the TSZ122IQ2T tolerant to ESD?
- What are some common applications for the TSZ122IQ2T?
- What packages are available for the TSZ122IQ2T?
