Overview
The TSZ122IYST is a dual precision operational amplifier from STMicroelectronics, part of the TSZ12x series. This device is renowned for its very high accuracy and stability, featuring an input offset voltage of 5 µV maximum at 25 °C and 8 µV over the full temperature range of -40 °C to 125 °C. It offers rail-to-rail input and output, a low supply voltage range of 1.8 to 5.5 V, and low power consumption of less than 40 µA at 5 V. The TSZ122IYST is ideal for applications requiring high precision and low power, such as sensor interfaces, battery-powered devices, and portable electronics.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 1.8 | 5.5 | V | ||
| Input Offset Voltage (Vio) | T = 25 °C | 1 | 5 | µV | |
| Input Offset Voltage (Vio) over Temperature | -40 °C < T < 125 °C | 8 | µV | ||
| Gain Bandwidth Product (GBP) | RL = 10 kΩ, CL = 100 pF | 400 | kHz | ||
| Supply Current (ICC) per Amplifier | Vout = VCC/2, RL > 1 MΩ, T = 25 °C | 28 | 40 | µA | |
| Slew Rate (SR) | T = 25 °C | 0.17 | V/µs | ||
| Operating Temperature Range | -40 | 125 | °C | ||
| ESD Protection | HBM | 4 | kV |
Key Features
- High Accuracy and Stability: Input offset voltage of 5 µV max at 25 °C and 8 µV over the full temperature range of -40 °C to 125 °C.
- Rail-to-Rail Input and Output: Ensures maximum signal range and flexibility.
- Low Power Consumption: Less than 40 µA at 5 V, making it suitable for battery-powered and portable applications.
- High Gain Bandwidth Product: 400 kHz, providing good speed and performance.
- High Tolerance to ESD: Human Body Model (HBM) protection up to 4 kV.
- Extended Temperature Range: Operates from -40 °C to 125 °C, suitable for a wide range of environments.
- Ultra-Low Input Bias Current: Ideal for high-impedance sensor interfaces.
Applications
- Battery-Powered Applications: Ideal for devices that require low power consumption and high precision.
- Portable Devices: Suitable for handheld and mobile electronics due to its low power and compact packages.
- Signal Conditioning: Used in various signal conditioning circuits where high accuracy and stability are required.
- Medical Instrumentation: Applicable in medical devices that demand precise and reliable signal processing.
- Sensor Interfaces: Ideal for interfacing with high-impedance sensors due to its ultra-low input bias current.
Q & A
- What is the input offset voltage of the TSZ122IYST at 25 °C?
The input offset voltage is 5 µV maximum at 25 °C.
- What is the operating temperature range of the TSZ122IYST?
The operating temperature range is from -40 °C to 125 °C.
- What is the gain bandwidth product (GBP) of the TSZ122IYST?
The gain bandwidth product is 400 kHz.
- How much power does the TSZ122IYST consume at 5 V?
The device consumes less than 40 µA at 5 V.
- What types of packages are available for the TSZ122IYST?
The device is available in miniSO8, SC70-5, DFN8 2x2, and QFN16 3x3 packages.
- What is the slew rate of the TSZ122IYST?
The slew rate is 0.17 V/µs.
- Does the TSZ122IYST have ESD protection?
Yes, it has Human Body Model (HBM) protection up to 4 kV.
- What are some typical applications for the TSZ122IYST?
Typical applications include battery-powered devices, portable electronics, signal conditioning, and medical instrumentation.
- What is the common mode input voltage range for the TSZ122IYST?
The common mode input voltage range is from (VCC - 0.1) to (VCC + 0.1).
- How does the TSZ122IYST perform in terms of noise?
The device has a low-frequency peak-to-peak input noise of 1.1 µVpp in the bandwidth from 0.1 to 10 Hz.
