Overview
The TSU101ILT, part of the TSU10x series from STMicroelectronics, is a nanopower operational amplifier designed for ultra-low power consumption and high performance in a variety of applications. This device is particularly suited for battery-powered and portable devices due to its low supply current and wide supply voltage range. The TSU101ILT operates with a typical supply current of 580 nA per channel at 1.8 V, making it ideal for long-life battery applications.
Key Specifications
| Parameter | Conditions | Min. | Max. | Unit | |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | 1.5 | 5.5 | V | ||
| Supply Current (ICC) per channel | No load, Vout = VCC/2, VCC = 1.8 V | 580 | 750 | nA | |
| Input Offset Voltage (Vio) | T = 25 °C | -3 | 0.1 | 3 | mV |
| Input Bias Current (Iib) | T = 25 °C | 0.01 | 2 | pA | |
| Gain Bandwidth Product (GBP) | RL = 1 MΩ, CL = 60 pF | 8 | kHz | ||
| Slew Rate (SR) | RL = 1 MΩ, CL = 60 pF | 3 | V/ms | ||
| Operating Temperature Range (Toper) | -40 | 85 | °C |
Key Features
- Ultra-low power consumption: 580 nA typical supply current per channel at 1.8 V.
- Wide supply voltage range: 1.5 V to 5.5 V.
- Rail-to-rail input and output.
- Low input bias current: 2 pA maximum at 25 °C.
- Unity gain stable.
- Industrial temperature range: -40 °C to 85 °C.
- Tolerance to power supply transient drops.
- Accurate signal conditioning of high impedance sensors.
Applications
- Ultra long life battery-powered applications.
- Power metering.
- UV and photo sensors.
- Electrochemical and gas sensors.
- Pyroelectric passive infrared (PIR) detection.
- Battery current sensing.
- Medical instrumentation.
- RFID readers.
Q & A
- What is the typical supply current of the TSU101ILT at 1.8 V?
The typical supply current is 580 nA per channel at 1.8 V.
- What is the operating temperature range of the TSU101ILT?
The operating temperature range is -40 °C to 85 °C.
- Is the TSU101ILT rail-to-rail?
- What is the gain bandwidth product of the TSU101ILT?
The gain bandwidth product is 8 kHz typical.
- What are some common applications for the TSU101ILT?
Common applications include ultra long life battery-powered devices, power metering, UV and photo sensors, and medical instrumentation.
- What is the input bias current of the TSU101ILT at 25 °C?
The input bias current is 2 pA maximum at 25 °C.
- Is the TSU101ILT unity gain stable?
- What is the slew rate of the TSU101ILT?
The slew rate is 3 V/ms typical.
- How does the TSU101ILT handle power supply transient drops?
The TSU101ILT is tolerant to power supply transient drops.
- What is the expected lifetime of a 220 mA.h coin-type Lithium battery when used with the TSU101ILT?
The expected lifetime is approximately 42 years.
