Overview
The TSC2012IDT, produced by STMicroelectronics, is a precision bidirectional current sense amplifier. This device is part of the TSC2010, TSC2011, and TSC2012 family, each offering different gain options. The TSC2012IDT specifically provides a gain of 100 V/V, making it suitable for high-accuracy current sensing applications. It operates over a wide range of common mode voltages from -20 to 70 V and is powered by a supply voltage ranging from 2.7 to 5.5 V. This amplifier is designed to sense very low drop voltages, minimizing measurement errors, and is fully functional over the industrial temperature range from -40 to 125 °C.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|---|
| Supply Voltage | 2.7 | 5.5 | V | ||
| Gain | 100 | 100 | V/V | ||
| Offset Voltage (RTI) | Vicm = 1 V, Tmin < T < Tmax | 200 | 700 | µV | |
| Offset Drift vs. Temperature | Vicm = 1 V, Tmin < T < Tmax | 5 | µV/°C | ||
| Common Mode Rejection | Vicm = -20 to 70 V, DC mode | 85 | 120 | dB | |
| Quiescent Current | Vicm = -20 to 70 V, Shutdown active | 20 | 50 | 150 | µA |
| Small Signal -3 dB Bandwidth | Rl = 10 kΩ, Cl = 100 pF | 330 | 490 | kHz | |
| Slew Rate | Rl = 10 kΩ, Cl = 100 pF, Vicm = 1 V | 3.2 | 5.2 | V/µs | |
| Output Current | Sink mode | 12 | 25 | 36 | mA |
| Load Regulation | Iout = -10 to +10 mA | 0.3 | 1.5 | mV/mA |
Key Features
- High Gain Accuracy: The TSC2012IDT offers a high gain of 100 V/V, ensuring precise current measurements.
- Wide Common Mode Voltage Range: Operates over a wide range of common mode voltages from -20 to 70 V.
- Low Offset Voltage: Maximum offset voltage of ±200 µV, ensuring high accuracy in current sensing.
- Low Power Consumption: Quiescent current of 20 µA in shutdown mode and 2.3 mA in active mode.
- High Temperature Range: Fully functional over the industrial temperature range from -40 to 125 °C.
- Shutdown Function: Active high shutdown mode for power management.
- Small Signal Bandwidth and Slew Rate: Suitable for dynamic applications with a small signal -3 dB bandwidth of up to 490 kHz and a slew rate of up to 5.2 V/µs.
Applications
- High-Side and Low-Side Current Sensing: Ideal for monitoring current in high-side and low-side configurations.
- Data Acquisition and Instrumentation: Used in data acquisition systems and instrumentation for precise current measurements.
- Test and Measurement Equipment: Suitable for various test and measurement applications requiring high accuracy.
- Industrial Process Control: Used in industrial control systems for monitoring and controlling current.
- Motor Control and Solenoid Control: Applied in motor control and solenoid control systems for precise current sensing.
Q & A
- What is the gain of the TSC2012IDT?
The TSC2012IDT has a gain of 100 V/V.
- What is the common mode voltage range of the TSC2012IDT?
The common mode voltage range is from -20 to 70 V.
- What is the maximum offset voltage of the TSC2012IDT?
The maximum offset voltage is ±200 µV.
- What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is 20 µA.
- What is the operating temperature range of the TSC2012IDT?
The operating temperature range is from -40 to 125 °C.
- Does the TSC2012IDT have a shutdown function?
Yes, it has an active high shutdown function.
- What is the small signal -3 dB bandwidth of the TSC2012IDT?
The small signal -3 dB bandwidth is up to 490 kHz.
- What is the slew rate of the TSC2012IDT?
The slew rate is up to 5.2 V/µs.
- In what applications is the TSC2012IDT commonly used?
It is commonly used in high-side and low-side current sensing, data acquisition, test and measurement equipment, industrial process control, motor control, and solenoid control.
- What package types are available for the TSC2012IDT?
The TSC2012IDT is available in SO8 and MiniSO8 packages.
