Overview
The TS924 and TS924A devices, including the TS924IPT, are rail-to-rail quad BiCMOS operational amplifiers optimized and fully specified for 3 V and 5 V operation. These amplifiers are designed by STMicroelectronics and are known for their high-quality performance in low-voltage and battery-operated audio systems. They exhibit low noise, low distortion, and high output current capabilities, making them suitable for a variety of applications requiring high fidelity and reliability.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | - | - | 14 | V |
| Differential Input Voltage (Vid) | - | - | ±1 | V |
| Input Offset Voltage (Vio) | 0.9 | 3 | 5 | mV |
| Input Offset Voltage Drift (DVio) | - | 2 | - | µV/°C |
| Input Bias Current (Iib) | 15 | - | 100 | nA |
| Common Mode Rejection Ratio (CMR) | 60 | - | 80 | dB |
| Supply Voltage Rejection Ratio (SVR) | 60 | - | 85 | dB |
| Large Signal Voltage Gain (Avd) | 70 | - | 200 | V/mV |
| High Level Output Voltage (VOH) | 2.90 | - | 4.90 | V |
| Low Level Output Voltage (VOL) | 0.18 | - | 0.3 | V |
| Output Short-Circuit Current (Io) | 50 | - | 80 | mA |
| Supply Current (ICC) | 1 | - | 1.6 | mA |
| Gain Bandwidth Product (GBP) | - | 4 | - | MHz |
| Slew Rate (SR) | 0.7 | 1.3 | - | V/µs |
| Equivalent Input Noise Voltage (en) | - | 9 | - | nV/√Hz |
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, 1.3 V/µs
- Operating range from 2.7 V to 12 V
- Low input offset voltage: 900 µV max. (TS924A)
- ESD internal protection: 3 kV
- Latch-up immunity
- Stable for capacitive loads up to 500 pF
Applications
- Headphone amplifiers
- Piezoelectric speaker drivers
- Sound cards
- MPEG boards, multimedia systems
- Line drivers, buffers
- Cordless telephones and portable communication equipment
- Instrumentation with low noise as a key factor
Q & A
- What is the operating voltage range of the TS924IPT?
The TS924IPT operates from 2.7 V to 12 V.
- What is the maximum output current of the TS924IPT?
The maximum output current is 80 mA.
- What is the gain bandwidth product of the TS924IPT?
The gain bandwidth product is 4 MHz.
- What is the slew rate of the TS924IPT?
The slew rate is 0.7 to 1.3 V/µs.
- Does the TS924IPT have ESD protection?
Yes, it has internal ESD protection up to 3 kV.
- What are the typical applications of the TS924IPT?
Typical applications include headphone amplifiers, piezoelectric speaker drivers, sound cards, and instrumentation requiring low noise.
- What is the input offset voltage of the TS924IPT?
The input offset voltage is 0.9 to 5 mV for the TS924 and 0.9 to 1.8 mV for the TS924A.
- Is the TS924IPT stable for capacitive loads?
Yes, it is stable for capacitive loads up to 500 pF.
- What are the package options for the TS924IPT?
The TS924IPT is available in SO14 and TSSOP14 packages.
- What is the thermal resistance junction-to-ambient for the TS924IPT in SO14 and TSSOP14 packages?
The thermal resistance junction-to-ambient varies depending on the package, but typical values are provided in the datasheet.
