1FEATURES

· Fully Differential Architecture

· Common-Mode Input Range Includes Negative

Rail

· Minimum Gain of 2 V/V (6 dB)

· Bandwidth: 1.1 GHz (Gain = 6 dB)

· Slew Rate: 5100 V/μs

· 1% Settling Time: 5.5 ns

· HD2: –76 dBc at 70 MHz

· HD3: –88 dBc at 70 MHz

· OIP2: 84 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 Ω System, G = 6 dB)

· Output Common-Mode Control

· 5 V Power Supply Current: 39.2 mA

· Power-Down Capability: 0.65 mA

· Rad-Tolerant: 150 kRad (Si) TID

· QML-V Qualified, SMD 5962-07222

APPLICATIONS

· 5 V Data-Acquisition Systems

· High Linearity ADC Amplifier

· Wireless Communication

· Medical Imaging

· Test and Measurement

DESCRIPTION/ORDERING INFORMATION

The THS4511 is a 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

–76 dBc HD2 and –88 dBc HD3 at 70 MHz with

2 Vpp, G = 14 dB, and 100 Ω load. Slew rate is very

high at 5100 V/μs and with settling time of 5.5 ns to

1% (2 V step) it is ideal for pulsed applications. It is

designed for minimum gain of 6 dB.

To allow for dc coupling to 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

mid-supply. The common-mode set point is set to

mid-supply 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 mid-supply, 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 16-pin ceramic flatpack

package (W), and is characterized for operation over

the full military temperature range from –55°C to

125°C.