Overview
The THS4221DGK, produced by Texas Instruments, is a high-speed, low-distortion operational amplifier that belongs to the THS4222 family. This family of voltage feedback amplifiers is designed for applications requiring high output swing, low distortion, and high bandwidth. The THS4221DGK can operate from a single power supply ranging from 3 V to 15 V and consumes a quiescent current of 14 mA per channel. It is ideal for driving data converters, video switching, and other low-distortion applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Operating Temperature Range | -40 to 85 | °C |
| Package Type | 8-VSSOP (DGK) | |
| Supply Voltage (Single Supply) | 2.7 to 15 | V |
| Supply Voltage (Dual Supply) | ±1.35 to ±7.5 | V |
| Input Common-Mode Voltage Range | VS- + 1.1 to VS+ - 1.1 | V |
| Bandwidth (3 dB, G=1) | 230 MHz | |
| Slew Rate | 975 V/µs | |
| Output Voltage Swing (RL = 499 Ω) | -4.7 / 4.7 | V |
| Output Current (Sourcing/Sinking, RL = 10 Ω) | 100 mA / -100 mA | |
| Quiescent Current per Channel | 14 mA | |
| Power Supply Rejection Ratio (PSRR) | 70 dB |
Key Features
- Rail-to-Rail Output Swing
- High Speed: 230 MHz Bandwidth (3 dB, G=1), 975 V/µs Slew Rate
- Ultra-Low Distortion: HD2 = 90 dBc, HD3 = 100 dBc at 5 MHz
- High Output Drive: 100 mA (typ)
- Excellent Video Performance: 0.007% Differential Gain, 0.007° Differential Phase
- Wide Range of Power Supplies: 3 V to 15 V
- Power-Down Mode (for THS4225/6 models)
- Evaluation Module Available
Applications
- Low-Voltage Analog-to-Digital Converter Preamplifier
- Active Filtering
- Video Applications
Q & A
- What is the operating temperature range of the THS4221DGK?
The operating temperature range is -40°C to 85°C. - What is the package type of the THS4221DGK?
The package type is 8-VSSOP (DGK). - What is the supply voltage range for the THS4221DGK?
The supply voltage range is from 2.7 V to 15 V for single supply and ±1.35 V to ±7.5 V for dual supply. - What is the bandwidth of the THS4221DGK?
The bandwidth is 230 MHz at a gain of 1. - What is the slew rate of the THS4221DGK?
The slew rate is 975 V/µs. - What are the key applications of the THS4221DGK?
The key applications include low-voltage analog-to-digital converter preamplifiers, active filtering, and video applications. - Does the THS4221DGK have a power-down mode?
No, the THS4221DGK does not have a power-down mode; this feature is available in the THS4225/6 models. - What is the quiescent current per channel of the THS4221DGK?
The quiescent current per channel is 14 mA. - What is the output current capability of the THS4221DGK?
The output current capability is 100 mA sourcing and -100 mA sinking at a load resistance of 10 Ω. - Is an evaluation module available for the THS4221DGK?
Yes, an evaluation module is available for the THS4221DGK.
