THS4508
THS4508 is LOW DISTORTION FULLY DIFFERENTIAL AMPLIFIER manufactured by Texas Instruments.
FEATURES
- Fully Differential Architecture
- mon-Mode Input Range Includes the
Negative Rail
- Minimum Gain of 2 V/V (6 d B)
- Bandwidth: 2 GHz
- Slew Rate: 6400 V/µs
- 1% Settling Time: 2 ns
- HD2:
- 72 d Bc at 100 MHz
- HD3:
- 79 d Bc at 100 MHz
- OIP2: 78 d Bm at 70 MHz
- OIP3: 42 d Bm at 70 MHz
- Input Voltage Noise: 2.3 n V/√Hz (f > 10 MHz)
- Noise Figure: 19.2 d B (G = 10 d B)
- Output mon-Mode Control
- 5-V Power Supply Current: 39.2 m A
- Power-Down Capability: 0.65 m A
APPLICATIONS
- 5-V Data-Acquisition Systems
- High Linearity ADC Amplifier
- Wireless munication
- Medical Imaging
- Test and Measurement
DESCRIPTION
The THS4508 is a wideband, fully-differential operational amplifier designed for single-supply 5-V data acquisition systems. It has very low noise at 2.3 n V/√Hz, and extremely low harmonic distortion of
- 72 d Bc HD2 and
- 79 d Bc HD3 at 100 MHz with 2 VPP, G = 10 d B, and 1-kΩ load. Slew rate is very high at 6400 Vµs, and with settling time of 2 ns to 1% (2 V step), it is ideal for pulsed applications. It is designed for minimum gain of 6 d B, but is optimized for gain of 10 d B.
To allow for dc coupling to analog-to-digital converters (ADCs), its unique output mon-mode control circuit maintains the output mon-mode voltage within 5-m V offset (typical) from the set voltage, when set within 0.5 V of mid-supply. The mon-mode set point is set to mid-supply by internal circuitry, which may be over-driven from an external source.
The THS4508 is a high-performance amplifier that has been optimized for use in high performance, 5-V single-supply data acquisition systems. The output has been optimized for best performance with its mon-mode voltages set to mid-supply, and the input has been optimized for best performance with its mon-mode voltage set to 0.7 V. High performance at a low power-supply voltage is ideal for high-performance, single-supply 5-V data-acquisition systems with a minimum parts count. The bined performance of the THS4508 in a gain of 10-d B driving...
