Overview
The THS4221DGKR is a low-distortion, high-speed operational amplifier produced by Texas Instruments. It is part of the THS4222 family, which includes single, dual, and triple channel configurations. This amplifier is designed for applications requiring high output swing, low distortion, and high-speed performance. It operates from a single power supply ranging from 3 V to 15 V and consumes a quiescent current of 14 mA per channel. The THS4221DGKR is ideal for driving data converters, video switching, and other low-distortion applications due to its excellent AC performance, including a 230 MHz bandwidth and a 975 V/µs slew rate.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer | Texas Instruments | Series | THS4221 |
| Number of Channels | 1 Channel | GBP - Gain Bandwidth Product | 230 MHz |
| SR - Slew Rate | 990 V/µs | Voltage Gain dB | 100 dB |
| CMRR - Common Mode Rejection Ratio | 74 dB to 94 dB | Ib - Input Bias Current | 3 µA |
| Vos - Input Offset Voltage | 10 mV | Supply Voltage - Max | 15 V |
| Supply Voltage - Min | 2.7 V | Operating Supply Current | 14 mA |
| Minimum Operating Temperature | -40°C | Maximum Operating Temperature | +85°C |
| Mounting Style | SMD/SMT | Amplifier Type | Voltage Feedback |
| en - Input Voltage Noise Density | 13 nV/√Hz | Height | 0.97 mm |
| Length | 3 mm | Width | 3 mm |
| Operating Supply Voltage | 15 V | Pd - Power Dissipation | 385 mW |
| Product | Operational Amplifiers | PSRR - Power Supply Rejection Ratio | 62 dB |
| Factory Pack Quantity | 2500 | Topology | Voltage Feedback |
Key Features
- Rail-to-Rail Output Swing: Ensures maximum output voltage range.
- High Speed: 230 MHz bandwidth and 975 V/µs slew rate.
- Ultra-Low Distortion: Harmonic distortion (THD) at 90 dBc at 5 MHz.
- High Output Drive: Capable of sourcing and sinking up to 100 mA.
- Excellent Video Performance: 0.007% differential gain and 0.007° differential phase.
- Wide Range of Power Supplies: Operates from 3 V to 15 V.
- Safe Power-Down Management: Low power-down current.
- Quick Recovery from Saturation: Fast recovery time from saturation.
- Stable Closed-Loop Operation: Ensures stable operation in closed-loop configurations.
Applications
- Low-Voltage Analog-to-Digital Converter Preamplifier: Ideal for driving data converters.
- Active Filtering: Suitable for high-speed filtering applications.
- Video Applications: Excellent performance in video switching and processing.
Q & A
- What is the operating temperature range of the THS4221DGKR?
The operating temperature range is -40°C to +85°C.
- What is the typical quiescent current per channel for the THS4221DGKR?
The typical quiescent current per channel is 14 mA.
- What is the gain bandwidth product (GBP) of the THS4221DGKR?
The gain bandwidth product (GBP) is 230 MHz.
- What is the slew rate of the THS4221DGKR?
The slew rate is 990 V/µs.
- What is the common mode rejection ratio (CMRR) of the THS4221DGKR?
The CMRR is 74 dB to 94 dB.
- What is the input offset voltage (Vos) of the THS4221DGKR?
The input offset voltage (Vos) is 10 mV.
- What is the maximum output current of the THS4221DGKR?
The maximum output current is 100 mA.
- What are the typical harmonic distortion values for the THS4221DGKR?
The second harmonic distortion (HD2) is 90 dBc, and the third harmonic distortion (HD3) is 100 dBc at 5 MHz.
- What is the package type and pin count of the THS4221DGKR?
The package type is VSSOP (DGK) with 8 pins.
- What are some typical applications of the THS4221DGKR?
Typical applications include low-voltage analog-to-digital converter preamplifiers, active filtering, and video applications.
