Rail-to-Rail Output Wideband Fully Differential Amplifier
Product details
Parameters
Package | Pins | Size
Features
- Fully Differential Architecture With Rail-to-Rail Outputs
- Centered Input Common-mode Range
- Minimum Gain of 1 V/V (0 dB)
- Bandwidth: 620 MHz
- Slew Rate: 570 V/µs
- 0.1% Settling Time: 7 ns
- HD2: –115 dBc at 100 kHz, VOD = 8 VPP
- HD3: –123 dBc at 100 kHz, VOD = 8 VPP
- Input Voltage Noise: 2 nV/
Hz (f >10 kHz)
- Output Common-Mode Control
- Power Supply:
- Voltage: 3.3 V (±1.65 V) to 5 V (±2.5 V)
- Current: 14.2 mA
- Power-Down Capability: 15 µA
- APPLICATIONS
- 5-V and 3.3-V Data Acquisition Systems
- High Linearity ADC Amplifier
- Wireless Communication
- Test and Measurement
- Voice Processing Systems
Description
The THS4520 is a wideband, fully differential operational amplifier designed for 5-V data acquisition systems. It has very low noise at 2 nV/ load. The slew rate is 570 V/µs, and with a settling time of 7 ns to 0.1% (2-V step), it is ideal for data acquisition applications. It is designed for unity gain stability.
To allow for dc coupling to ADCs, its unique output common-mode control circuit maintains the output common-mode voltage within 0.25 mV offset (typical) from the set voltage. The common-mode set point defaults to mid-supply by internal circuitry, which may be over-driven from an external source.
The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high performance at low power supply voltage, this makes for extremely high performance single supply 5-V and 3.3-V data acquisition systems.
The THS4520 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
Type | Title | Date | |
---|---|---|---|
* | Datasheet | Wideband, Low Noise, Low Distortion, Fully Differential Amplifier datasheet (Rev. B) | Mar. 15, 2007 |
Application note | Q3 2009 Issue Analog Applications Journal | Sep. 24, 2018 | |
Application note | Q4 2009 Issue Analog Applications Journal | Sep. 24, 2018 | |
E-book | The Signal e-book: A compendium of blog posts on op amp design topics | Mar. 28, 2017 | |
Technical articles | How to minimize filter loss when you drive an ADC | Oct. 20, 2016 | |
Technical articles | Go differential to differentiate your precision design | Aug. 11, 2016 | |
Technical articles | How to use a fully differential amplifier as a level shifter | Jul. 13, 2016 | |
Technical articles | What you need to know about internal ESD protection on integrated circuits | Dec. 02, 2015 | |
Application note | Using fully differential op amps as attenuators, Part 3 | Oct. 04, 2009 | |
Application note | Using fully differential op amps as attenuators, Part 2 | Jul. 14, 2009 | |
Application note | Noise Analysis for High Speed Op Amps (Rev. A) | Jan. 17, 2005 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
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 (...)
Features
- Configured with 50 Ω input/output impedance
- 1:1 Transformer on output
- Power Supply: 3 V (±1.5 V) to 5 V (±2.5 V)
- Decoupling capacitors
- Connectors: Vs+, GND, Vs-, In+, J3 (V OUT), and test points
- Input and Output signals are via SMA connectors
- Power connectors are via banana jack
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
VQFN (RGT) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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