THS4511 Texas instruments

THS4511

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THS4511

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Описание

The THS4511 is a wideband, fully-differential operational amplifier designed for single-supply 5-V data-acquisition systems. It has very low noise at 2 nV/√Hz, and extremely low harmonic distortion of –72 dBc HD2 and –87 dBc HD3 at 70 MHz with 2 VPP, G = 0 dB, and 200- load. Slew rate is very high at 4900 Vµs and with settling time of 3.3 ns to 1% (2 V step) it is ideal for pulsed applications. It is designed for minimum gain of 0 dB. To allow for dc coupling to analog-to-digital converters (ADCs), its unique output common-mode control circuit maintains the output common-mode voltage within 5-mV offset (typical) from the set voltage, when set within ±0.5 V of midsupply. The common-mode set point is set to midsupply by internal circuitry, which may be over-driven from an external source. The THS4511 is a high-performance amplifier that has been optimized for use in 5-V single-supply data acquisition systems. The output has been optimized for best performance with its common-mode voltages set to midsupply, and the input has been optimized for performance over a wide range of common-mode input voltages. High performance at a low power-supply voltage enables single-supply 5-V data-acquisition systems while minimizing component count. The THS4511 is offered in a quad, 16-pin leadless QFN package (RGT), and is characterized for operation over the full industrial temperature range from –40°C to +85°C.

Fully-Differential Architecture
Common-Mode Input Range Includes the Negative Rail
Unity-Gain Stable
Bandwidth: 1.6 GHz (Gain = 0 dB)
Slew Rate: 4900 V/µs
1% Settling Time: 3.3 ns
HD₂: –72 dBc at 70 MHz
HD₃: –87 dBc at 70 MHz
OIP₂: 76 dBm at 70 MHz
OIP₃: 42 dBm at 70 MHz
Input Voltage Noise: 2 nV/√Hz (f > 10 MHz)
Noise Figure: 21.8 dB (50- System, G = 6 dB)
Output Common-Mode Control
5-V Power-Supply Current: 39.2 mA
Power-Down Capability: 0.65 mA
APPLICATIONS
- 5-V Data-Acquisition Systems
- High Linearity ADC Amplifiers
- Wireless Communication
- Medical Imaging
- Test and Measurement

2nd harmonic (dBc)	117
3rd harmonic (dBc)	106
Frequency of harmonic distortion measurement (MHz)	10
Architecture	Bipolar, Fully Differential ADC Driver
BW at Acl (MHz)	1600
Features	Shutdown
Number of channels	1
Operating temperature range (°C)	-40 to 85
Rating	Catalog
Type	RF FDA
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	3.75
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	5.25