Overview
The TSZ122IDT, produced by STMicroelectronics, is a dual high-precision operational amplifier from the TSZ12x series. This component is renowned for its very low input offset voltage, virtually zero drift, and high accuracy over a wide temperature range. The TSZ122IDT is part of a family that includes single (TSZ121), dual (TSZ122), and quad (TSZ124) versions, all designed to offer exceptional performance in various applications.
The device features rail-to-rail input and output, low supply voltage requirements (1.8 to 5.5 V), and low power consumption (typically 40 µA at 5 V). It is packaged in compact forms such as DFN8 2x2, making it ideal for space-constrained designs.
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) | -40 °C < T < 125 °C | 8 | µV | ||
| Input Bias Current (Iib) | T = 25 °C | 50 | 200 | pA | |
| Input Bias Current (Iib) | -40 °C < T < 125 °C | 300 | pA | ||
| Common Mode Rejection Ratio (CMR) | T = 25 °C | 110 | 122 | dB | |
| Gain Bandwidth Product (GBP) | RL = 10 kΩ, CL = 100 pF | 400 | kHz | ||
| Slew Rate (SR) | 0.17 | V/μs | |||
| Supply Current (ICC) | T = 25 °C | 28 | 40 | µA | |
| Operating Temperature Range | -40 | 125 | °C |
Key Features
- High Accuracy and Stability: Very low 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 full signal utilization and flexibility in design.
- Low Power Consumption: Typically 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 ESD Tolerance: 4 kV HBM, enhancing reliability in harsh environments.
- Compact Packages: Available in SC70-5, DFN8 2x2, and QFN16 3x3, ideal for space-constrained designs).
Applications
- Battery-Powered Applications: Suitable for devices that require low power consumption and high accuracy).
- Portable Devices: Ideal for handheld and mobile devices due to its low power and compact packaging).
- Signal Conditioning: Used in various signal conditioning circuits where high accuracy and stability are crucial).
- Medical Instrumentation: Applicable in medical devices that require precise and reliable signal processing).
Q & A
- What is the maximum input offset voltage of the TSZ122IDT at 25 °C?
The maximum input offset voltage is 5 µV at 25 °C).
- What is the operating temperature range of the TSZ122IDT?
The operating temperature range is -40 °C to 125 °C).
- What is the typical supply current of the TSZ122IDT at 5 V?
The typical supply current is 40 µA at 5 V).
- Does the TSZ122IDT have rail-to-rail input and output capabilities?
Yes, the TSZ122IDT features rail-to-rail input and output).
- What is the gain bandwidth product of the TSZ122IDT?
The gain bandwidth product is 400 kHz).
- What are the typical packages available for the TSZ122IDT?
The TSZ122IDT is available in SC70-5, DFN8 2x2, and QFN16 3x3 packages).
- How much ESD tolerance does the TSZ122IDT have?
The TSZ122IDT has a high ESD tolerance of 4 kV HBM).
- What are some common applications of the TSZ122IDT?
Common applications include battery-powered devices, portable devices, signal conditioning, and medical instrumentation).
- What is the common mode rejection ratio (CMR) of the TSZ122IDT?
The CMR is typically 122 dB at 25 °C).
- How does the input offset voltage of the TSZ122IDT change with temperature?
The input offset voltage drift is typically 10 to 30 nV/°C over the full temperature range).
