Overview
The TS321QDBVRQ1 is a low-power, single-channel operational amplifier produced by Texas Instruments. This device is designed for cost-sensitive applications where space savings are crucial. It is available in a compact SOT-23 (DBV) package with 5 pins, making it ideal for various electronic systems requiring minimal footprint.
The TS321 can operate on a single supply voltage ranging from 3 V to 30 V or a dual supply voltage ranging from ±1.5 V to ±15 V, offering flexibility in different application scenarios. Its low supply current of 500 μA (typical) and low input bias current of 20 nA (typical) make it suitable for power-efficient designs.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Supply Voltage (Single Supply) | - | - | - | 32 | V |
| Supply Voltage (Dual Supplies) | - | - | - | ±16 | V |
| Differential Input Voltage | - | - | - | ±32 | V |
| Input Voltage Range | - | -0.3 | - | 32 | V |
| Input Offset Voltage | RS = 0, 5 V < VCC+ < 30 V, 0 < VIC < (VCC+ – 1.5 V), TA = 25°C | 0.5 | 4 | - | mV |
| Low-Level Output Voltage | RL = 10 kΩ, TA = 25°C | 5 | - | 15 | mV |
| Gain Bandwidth Product | VCC = 30 V, VI = 10 mV, RL = 2 kΩ, f = 100 kHz, CL = 100 pF, TA = 25°C | 0.8 | - | - | MHz |
| Slew Rate | VCC = 15 V, VI = 0.5 V to 3 V, RL = 2 kΩ, CL = 100 pF, unity gain, TA = 25°C | 0.4 | - | - | V/µs |
| Phase Margin | TA = 25°C | 60 | - | - | ° |
| Common-Mode Rejection Ratio | RS ≤ 10 kΩ, TA = 25°C | 65 | 85 | - | dB |
| Output Source Current | VCC = 15 V, VO = 2 V, VID = 1 V, TA = 25°C | 20 | - | 40 | mA |
| Output Sink Current | VCC = 15 V, VID = 1 V, TA = 25°C | 20 | - | 40 | mA |
Key Features
- Wide Power-Supply Range: The TS321 can operate on a single supply from 3 V to 30 V or a dual supply from ±1.5 V to ±15 V.
- Large Output Voltage Swing: The device offers a large output voltage swing, typically from 0 V to 3.5 V (minimum) when VCC = 5 V.
- Low Supply Current: It has a low supply current of 500 μA (typical), making it power-efficient.
- Low Input Bias Current: The input bias current is low at 20 nA (typical).
- Stability With High Capacitive Loads: The TS321 is stable with high capacitive loads, ensuring reliable operation in various applications.
- Gain Bandwidth Product: The device has a gain bandwidth product of 0.8 MHz.
- Slew Rate: The slew rate is 0.4 V/µs (typical) under specified conditions.
- Phase Margin: It has a phase margin of 60° at 25°C.
- Common-Mode Rejection Ratio: The common-mode rejection ratio is 65 dB to 85 dB.
Applications
- Desktop PCs: Suitable for signal conditioning and amplification in desktop computer systems.
- HVAC Systems: Used in heating, ventilating, and air conditioning systems for signal processing.
- Portable Media Players: Ideal for audio and signal processing in portable media devices.
- Refrigerators and Washing Machines: Applied in high-end and low-end appliances for various signal conditioning tasks.
Q & A
- What is the operating voltage range of the TS321?
The TS321 can operate on a single supply from 3 V to 30 V or a dual supply from ±1.5 V to ±15 V.
- What is the typical supply current of the TS321?
The typical supply current is 500 μA.
- What is the input bias current of the TS321?
The input bias current is typically 20 nA.
- Is the TS321 stable with high capacitive loads?
- What is the gain bandwidth product of the TS321?
The gain bandwidth product is 0.8 MHz.
- What is the slew rate of the TS321?
The slew rate is 0.4 V/µs (typical) under specified conditions.
- What is the phase margin of the TS321?
The phase margin is 60° at 25°C.
- What is the common-mode rejection ratio of the TS321?
The common-mode rejection ratio is between 65 dB and 85 dB.
- In what types of applications is the TS321 commonly used?
The TS321 is commonly used in desktop PCs, HVAC systems, portable media players, refrigerators, and washing machines.
- What package options are available for the TS321?
The TS321 is available in SOIC (8-pin) and SOT-23 (5-pin) packages.
