1.9-GHz, Wideband, Low-Noise, Low-Distortion, Fully-Differential Amplifier
Product details
Parameters
Package | Pins | Size
Features
- 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
Description
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
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The ADS5474EVM is a circuit board which allows the designer to run an evaluation of Texas Instruments ADS5474 device, a 14-bit 400 MSPS ADC. With the supplied Logic analyzer breakout board, the ADC LVDS output can be directly captured using either an Agilent E5405A or Tektronix P6980 touchless (...)
Features
- Transformer coupled analog input path
- Texas Instrumentâs THS9001 analog input path
- LVDS capture ability
Description
The ADS54RF63EVM is a circuit board which allows the designer to run an evaluation of Texas Instruments' ADS5463 device, a 12 bit 550 MSPS ADC optimized for high SFDR with high IF/RF inputs. With the supplied Logic analyzer breakout board, the ADC LVDS output can be directly captured using either an (...)
Features
- Transformer coupled analog input path
- Texas Instruments' THS9001 analog input path
- LVDS capture ability
Description
The ADS6125EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6125 device, a low power 12-bit 125 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a flexible environment to (...)
Features
- Transformer coupled analog input path
- Transformer coupled clock input path
- Amplifier path based on the THS4509
- Configurable parallel output modes
- Direct connection to TSW1100 High Speed ADC Capture Card
- Separate analog and digital supply connections
Description
The ADS6142EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6142 device, a low power 14-bit 65 MSPS analog to digital converter. The ADC features a configurable parallel DDR LVDS or CMOS outputs. The EVM provides a flexible environment to test (...)
Features
- Transformer coupled analog input path
- Transformer coupled clock input path
- Amplifier path based on the THS4509
- Configurable parallel output modes
- Direct connection to TSW1100 High Speed ADC Capture Card
- Separate analog and digital supply connections
Description
The ADS6422EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6422 device, a quad channel 12-bit 65 MSPS analog to digital converter. The ADC features a configurable serialized LVDS outputs which can be directly deserialized using TI‘s (...)
Features
- Transformer coupled analog input path
- Transformer coupled clock input path
- Amplifier path based on the THS4509
- Configurable serialized output modes
- Direct connection to High Speed ADC LVDS System (Deserializer)
- Separate analog and digital supply connections
- www.latticesemi.com/ads6000evminterface
Description
The ADS6425EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6425 device, a quad channel 12-bit 125 MSPS analog to digital converter. The ADC features a configurable serialized LVDS outputs which can be directly deserialized using TI‘s (...)
Features
- Transformer coupled analog input path
- Transformer coupled clock input path
- Amplifier path based on the THS4509
- Configurable serialized output modes
- Direct connection to High Speed ADC LVDS System (Deserializer)
- Separate analog and digital supply connections
- www.latticesemi.com/ads6000evminterface
Description
The ADS6442EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6442 device, a quad channel 14-bit 65 MSPS analog to digital converter. The ADC features a configurable serialized LVDS outputs which can be directly deserialized using TI‘s (...)
Features
- Transformer coupled analog input path
- Transformer coupled clock input path
- Amplifier path based on the THS4509
- Configurable serialized output modes
- Direct connection to High Speed ADC LVDS System (Deserializer)
- Separate analog and digital supply connections
- www.latticesemi.com/ads6000evminterface
Description
The ADS6445 EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments‘ ADS6445 device, a quad channel 14-bit 125 MSPS analog to digital converter. The ADC features a configurable serialized LVDS outputs which can be directly deserialized using (...)
Features
- Transformer coupled analog input path
- Transformer coupled clock input path
- Amplifier path based on the THS4509
- Configurable serialized output modes
- Direct connection to TSW1200 High Speed ADC LVDS Evaluation System
- Separate analog and digital supply connections
- www.latticesemi.com/ads6000evminterface
Description
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 (...)
Features
- Configured with 50 ohms input/output impedance
- 1:1 Transformer on output
- Power Supply: 5V
- 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
Description
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 and (...)
Features
- Configured with 50 ohms input/output impedance.
- 1:1 Transformer on output
- Power Supply: 3V (+/-1.5V) to 5V (+/-2.5V)
- 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.
Description
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 (...)
Features
- Configured with 50 ohms input/output impedance
- 1:1 Transformer on output
- Power Supply: 5V
- 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
Description
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 output (...)
Features
- Configured with 50 ohms input/output impedance.
- 1:1 Transformer on output
- Power Supply: 3V (+/-1.5V) to 5V (+/-2.5V)
- 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.
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
Reference designs
Design files
-
download TIDA-00093 BOM.pdf (276KB)
Design files
-
download TIDA-00092 BOM.pdf (184KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| VQFN (RGT) | 16 | View options |
Ordering & quality
Support & training
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