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Data sheet
THS4509
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- Fully-Differential Architecture
- Centered Input Common-Mode Range
- Output Common-Mode Control
- Minimum Gain of 2 V/V (6 dB)
- Bandwidth: 1900 MHz
- Slew Rate: 6600 V/µs
- 1% Settling Time: 2 ns
- HD2: –75 dBc at 100 MHz
- HD3: –80 dBc at 100 MHz
- OIP3: 37 dBm at 70 MHz
- Input Voltage Noise: 1.9 nV/√Hz (f > 10 MHz)
- Power-Supply Voltage: 3 V to 5 V
- Power-Supply Current: 37.7 mA
- Power-Down Current: 0.65 mA
- APPLICATIONS
- 5-V Data Acquisition Systems High Linearity ADC Amplifiers
- Wireless Communication
- Medical Imaging
- Test and Measurement
All other trademarks are the property of their respective owners
The THS4509 device is a wideband, fully-differential op amp designed for 5-V data acquisition systems. It has a low noise at 1.9 nV/√Hz, and low harmonic distortion of –75 dBc HD2 and –80 dBc HD3 at 100 MHz with 2 VPP, G = 10 dB, and 1-kΩ load. Slew rate is high at 6600 V/µs, and with settling time of 2 ns to 1% (2-V step), it is ideal for pulsed applications. It is designed for a minimum gain of 6 dB, but is optimized for gains of 10 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 3-mV offset (typical) from the set voltage, when set within 0.5-V of midsupply, with less than 4-mV differential offset voltage. The common-mode set point is set to midsupply by internal circuitry, which may be overdriven from an external source.
The input and output are optimized for best performance with the common-mode voltages set to midsupply. Along with high performance at low power-supply voltage, this design makes it ideal for high-performance, single-supply 5-V data acquisition systems. The combined performance of the THS4509 in a gain of 10 dB driving the ADS5500 ADC, sampling at 125 MSPS, is 81-dBc SFDR and 69.1-dBc SNR with a –1 dBFS signal at 70 MHz.
The THS4509 is offered in a quad, leadless VQFN-16 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 17 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
THS4509EVM — THS4509 evaluation module
THS4509RGT Eval 1 EVM is an evaluation Module for the RGT (16 pin leadless QFN) package.
The THS4509RGT Eval 1 EVM 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 10dB (...)
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
THS4509 TINA-TI Reference Design (Rev. B)
SLOM152B.TSC (53 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
Reference designs
TIDA-00093 — Optimizing THS4509 to Drive High Speed ADCs Reference Design
This reference design shows the ability of the high-speed amplifier, THS4509 to perform single-ended to differential conversion to drive high-speed analog-to-digital converters (ADCs) while maintaining excellent noise and distortion performance. Performance versus input frequency is shown for both (...)
Reference designs
TIDA-00092 — Optimizing LMH6554 to Drive High Speed ADCs
This reference design shows the ability of the high-speed amplifier, LMH6554, to perform single-ended to differential conversion to drive high-speed analog-to-digital converters (ADCs) while maintaining excellent noise and distortion performance. Performance versus input frequency is shown for both (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN (RGT) | 16 | Ultra Librarian |
Ordering & quality
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