Overview
The THS4521IDGKT, produced by Texas Instruments, is a very low-power, fully differential amplifier designed for high-performance and low-power applications. This device is part of the THS4521, THS4522, and THS4524 family, which includes single, dual, and quad channel versions respectively. The THS4521IDGKT is characterized by its rail-to-rail output and negative rail input, making it ideal for systems where power dissipation is critical and exceptional performance is required.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bandwidth | 145 MHz (AV = 1 V/V) | MHz |
| Slew Rate | 490 V/μs | V/μs |
| HD2 | –133 dBc at 10 kHz (1 VRMS, RL = 1 kΩ) | dBc |
| HD3 | –141 dBc at 10 kHz (1 VRMS, RL = 1 kΩ) | dBc |
| Input Voltage Noise | 4.6 nV/√Hz (f = 100 kHz) | nV/√Hz |
| THD+N | –112 dBc (0.00025%) at 1 kHz (22-kHz BW, G = 1, 5 VPP) | dBc |
| Open-Loop Gain | 119 dB (DC) | dB |
| Input-Referred Offset Voltage | ±0.2 to ±3.5 mV | mV |
| Power Supply Voltage | +2.5 V to +5.5 V | V |
| Quiescent Operating Current per Channel | 1.14 mA | mA |
| Power-Down Quiescent Current | 20 μA (typical) | μA |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package | MSOP-8 |
Key Features
- Fully differential architecture with rail-to-rail output and negative rail input.
- Low power consumption with a quiescent operating current of 1.14 mA per channel.
- High bandwidth of 145 MHz and slew rate of 490 V/μs.
- Excellent harmonic distortion performance with HD2 and HD3 of –133 dBc and –141 dBc respectively at 10 kHz.
- Low input voltage noise of 4.6 nV/√Hz at 100 kHz.
- Power-down capability with a quiescent current of 20 μA (typical).
- Output common-mode control for easy dc-coupling when driving analog-to-digital converters (ADCs).
Applications
- Low-power SAR and ΔΣ ADC drivers.
- Low-power differential drivers.
- Low-power differential signal conditioning.
- Low-power, high-performance differential audio amplifiers.
Q & A
- What is the bandwidth of the THS4521IDGKT?
The bandwidth of the THS4521IDGKT is 145 MHz at a gain of 1 V/V. - What is the slew rate of the THS4521IDGKT?
The slew rate of the THS4521IDGKT is 490 V/μs. - What are the harmonic distortion specifications of the THS4521IDGKT?
The THS4521IDGKT has harmonic distortion specifications of HD2 = –133 dBc and HD3 = –141 dBc at 10 kHz. - What is the input voltage noise of the THS4521IDGKT?
The input voltage noise of the THS4521IDGKT is 4.6 nV/√Hz at 100 kHz. - What is the power supply voltage range for the THS4521IDGKT?
The power supply voltage range for the THS4521IDGKT is +2.5 V to +5.5 V. - What is the quiescent operating current per channel for the THS4521IDGKT?
The quiescent operating current per channel for the THS4521IDGKT is 1.14 mA. - Does the THS4521IDGKT have a power-down feature?
Yes, the THS4521IDGKT has a power-down feature with a quiescent current of 20 μA (typical). - What are the typical applications of the THS4521IDGKT?
The THS4521IDGKT is typically used in low-power SAR and ΔΣ ADC drivers, low-power differential drivers, low-power differential signal conditioning, and low-power, high-performance differential audio amplifiers. - What is the operating temperature range of the THS4521IDGKT?
The operating temperature range of the THS4521IDGKT is –40°C to +85°C. - What package type is the THS4521IDGKT available in?
The THS4521IDGKT is available in an MSOP-8 package.
