Overview
The TS922IYDT is a rail-to-rail dual BiCMOS operational amplifier produced by STMicroelectronics. It is optimized and fully specified for 3 V and 5 V operations, making it suitable for high-quality, low-voltage, or battery-operated audio systems. The device features high output currents, allowing it to drive low-load impedances effectively. Its low noise, low distortion, and low offset characteristics make it an excellent choice for various audio and industrial applications.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Input Offset Voltage (Vio) | 0.9 | - | 1.8 | mV |
| Input Offset Current (Iio) | 1 | - | 30 | nA |
| Input Bias Current (Iib) | 15 | - | 100 | nA |
| High Level Output Voltage (VOH) | 2.90 | - | - | V (RL=10kΩ) |
| Low Level Output Voltage (VOL) | 50 | - | - | mV (RL=10kΩ) |
| Large Signal Voltage Gain (Avd) | 70 | - | 200 | V/mV (RL=10kΩ) |
| Total Supply Current (Icc) | 2 | - | 3.2 | mA |
| Gain Bandwidth Product (GBP) | 4 | - | - | MHz |
| Common Mode Rejection Ratio (CMR) | 60 | - | 80 | dB |
| Supply Voltage Rejection Ratio (SVR) | 60 | - | 85 | dB |
| Output Short-Circuit Current (Io) | 50 | - | 80 | mA |
| Slew Rate (SR) | 0.7 | - | 1.3 | V/μs |
| Equivalent Input Noise Voltage (en) | 9 | - | - | nV/√Hz |
| Operating Temperature Range | -40 | - | 125 | °C |
Key Features
- Rail-to-rail input and output
- Low noise: 9 nV/√Hz
- Low distortion
- High output current: 80 mA (able to drive 32 Ω loads)
- High-speed: 4 MHz, 1 V/μs
- Operating from 2.7 to 12 V
- Low input offset voltage: 900 μV max. (TS922A)
- ESD internal protection: 2 kV
- Latch-up immunity
Applications
- Headphone amplifier
- Sound cards, multimedia systems
- Line driver, actuator driver
- Servo amplifier
- Mobile phone and portable equipment
- Instrumentation with low noise as a key factor
- Piezoelectric speaker driver
Q & A
- What is the TS922IYDT operational amplifier optimized for?
The TS922IYDT is optimized and fully specified for 3 V and 5 V operations.
- What are the key features of the TS922IYDT?
Key features include rail-to-rail input and output, low noise, low distortion, high output current, high-speed operation, and low input offset voltage.
- What is the maximum input offset voltage for the TS922A?
The maximum input offset voltage for the TS922A is 900 μV.
- What is the slew rate of the TS922IYDT?
The slew rate of the TS922IYDT is 0.7 to 1.3 V/μs.
- What is the gain bandwidth product of the TS922IYDT?
The gain bandwidth product is 4 MHz.
- What is the common mode rejection ratio of the TS922IYDT?
The common mode rejection ratio is 60 to 80 dB.
- What is the supply voltage rejection ratio of the TS922IYDT?
The supply voltage rejection ratio is 60 to 85 dB.
- What are some typical applications of the TS922IYDT?
Typical applications include headphone amplifiers, sound cards, multimedia systems, line drivers, actuator drivers, servo amplifiers, mobile phones, and instrumentation.
- What is the operating temperature range of the TS922IYDT?
The operating temperature range is from -40°C to 125°C.
- Does the TS922IYDT have ESD protection?
Yes, the TS922IYDT has internal ESD protection up to 2 kV.
