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THS4511
1.6-GHz, unity-gain stable, wideband, low-noise, low distortion fully differential amplifier
Data sheet
THS4511
- 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
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.
Technical documentation
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View all 8 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Wideband, Low-Noise, Low-Distortion, Fully-Diff Amp datasheet (Rev. E) | 20 Nov 2009 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | 28 Mar 2017 | ||
| Application note | Fully-Differential Amplifiers (Rev. E) | 19 Sep 2016 | ||
| Application note | Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) | 10 Sep 2010 | ||
| Analog Design Journal | Low-power, high-intercept interface to the ADS5424, 105-MSPS converter | 10 Oct 2005 | ||
| Analog Design Journal | Analysis of fully differential amplifiers | 11 Mar 2005 | ||
| Analog Design Journal | Fully differential amplifiers applications:Line termination,driving high-speed.. | 02 Mar 2005 | ||
| Application note | Noise Analysis for High Speed Op Amps (Rev. A) | 17 Jan 2005 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
THS4508EVM — THS4508 evaluation module
THS4508EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.
The THS4508EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 10 dB and 50 ohm input and (...)
Evaluation board
THS4511EVM — THS4511 evaluation module
THS4511EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.
The THS4511EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0 dB and 50 ohm input and (...)
Evaluation board
THS4513EVM — THS4513 evaluation module
THS4513EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.
The THS4513EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0dB and 50 ohm input and (...)
Evaluation board
THS4520EVM — THS4520 evaluation module
THS4520EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.
The THS4520EVM is designed to demonstrate the functionality and versatility of the device. The EVM is ready for power, signal source, and test instruments. The EVM is configured for a gain of 0 dB and 50 Ω (...)
Simulation model
THS4511 TINA-TI Reference Design (Rev. B)
SLOM154B.TSC (76 KB) - TINA-TI Reference Design
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool
TINA-TI — SPICE-based analog simulation program
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGT) | 16 | Ultra Librarian |
Ordering & quality
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