Rad-Tolerant Class V, Wideband, Fully Differential Amplifier

Rad-Tolerant Class V, Wideband, Fully Differential Amplifier - THS4511-SP

Special note

The THS4511EVM (Evaluation Module) can be used to evaluate the functionality of the THS4511-SP.


  • 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/ 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
    • 5 V Data-Acquisition Systems
    • High Linearity ADC Amplifier
    • Wireless Communication
    • Medical Imaging
    • Test and Measurement


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/ 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.

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Parametrics Compare all products in Operational Amplifiers

Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
GBW (Typ) (MHz)
Slew Rate (Typ) (V/us)
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Typ) (mA)
Operating Temperature Range (C)
Package Group
Output Current (Typ) (mA)
Offset Drift (Typ) (uV/C)
Vn at 1kHz (Typ) (nV/rtHz)
IIB (Max) (pA)
CMRR (Typ) (dB)
Package Size: mm2:W x L (PKG)
THS4511-SP LMH5401-SP THS4513-SP
1    1    1   
3.75    3.15    3   
5.25    5.25    5.5   
3000    6000    3000   
5100    17500    5100   
In to V-    No    No   
4    1.2    4   
39.2    55    37.7   
Space    Space    Space   
-55 to 125    -55 to 125
25 to 25   
-55 to 125   
CFP    LCCC    CFP   
96    50    96   
2.3    0.63    2.6   
20    3.8    22   
Fully Differential
Voltage FB   
  Fully Differential
Voltage FB   
15500000      15500000   
80    72    80   
See datasheet (CFP)    14LCCC: 33 mm2: 5.5 x 6(LCCC)    See datasheet (CFP)   

Other qualified versions of THS4511-SP

Version Part Number Definition
Catalog THS4511 TI's standard catalog product

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