Overview
The TS321IDBVRG4 is a low-power single operational amplifier produced by Texas Instruments. This device is designed for cost-sensitive applications where space savings are crucial. It is available in the compact SOT-23 package, making it ideal for various applications requiring minimal footprint.
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, offering flexibility in different circuit configurations. It is characterized by its low supply current, low input bias current, and stability with high capacitive loads, making it suitable for a wide range of signal conditioning applications.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| Supply Voltage (Single) | - | - | - | 32 | V |
| Supply Voltage (Dual) | - | - | - | ±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: Single supply from 3 V to 30 V or dual supply from ±1.5 V to ±15 V.
- Large Output Voltage Swing: From 0 V to 3.5 V (minimum) with VCC = 5 V.
- Low Supply Current: Typical supply current of 500 μA.
- Low Input Bias Current: Typical input bias current of 20 nA.
- Stability With High Capacitive Loads: Stable operation with high capacitive loads, especially at unity gain.
Applications
- Desktop PCs: Used in various analog circuits within desktop computers.
- HVAC Systems: Heating, Ventilating, and Air Conditioning systems benefit from its signal conditioning capabilities.
- Portable Media Players: Suitable for audio and signal processing in portable media devices.
- Refrigerators and Washing Machines: Used in high-end and low-end appliances for signal conditioning and control.
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 typical input bias current is 20 nA.
- Is the TS321 stable with high capacitive loads?
Yes, the TS321 is stable with high capacitive loads, particularly at unity gain.
- What are the common applications of the TS321?
The TS321 is used in desktop PCs, HVAC systems, portable media players, refrigerators, and washing machines.
- 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.
- What is the phase margin of the TS321?
The phase margin is 60°.
- How should the power supply be configured for the TS321?
The supply voltage must be selected such that it is larger than the input voltage range and output range. Bypass capacitors should be used to reduce noise.
- Can the inputs of the TS321 exceed the supply voltage without damage?
Yes, the inputs can exceed the supply voltage up to the maximum VCC without causing damage, but at least one input must be within the valid common-mode range for correct output phase.
