Analogue, Mixed Signal, LSI


Differential buffer amplifier

5 September 2012 Analogue, Mixed Signal, LSI

Linear Technology’s new LTC6417 is a fully differential buffer amplifier with only 1,5 nV/√Hz output-referred noise. It is capable of driving a differential 50 Ω load and is optimised for driving 14- and 16-bit pipeline ADCs.

The IC can be DC- or AC-coupled at its inputs, and achieves excellent distortion performance for signals up to and beyond 600 MHz. At 140 MHz, OIP3 is 46 dBm, and HD3 is -69 dBc with 2,4 VP-P output swing into a 50 Ω load.

Several features are included to simplify interfacing with ADCs: the LTC6417 is configured internally as a unity gain buffer. Because its input impedance is 18,5 kΩ, additional gain can be achieved by applying a 1:4 or 1:8 transformer at the inputs.

The device’s low-impedance output helps manage the capacitive charge injection common to pipeline ADCs. Fast output clamps can be programmed with a single pin to prevent ADC over-range conditions. An over-range pin signals when the clamps limit the output voltage. An output common mode pin makes it easy to match the LTC6417 output swing to the input range of the ADC.

The IC operates from a single 5 V supply. A PWRADJ pin enables the designer to trade off power consumption for HD3 performance. This feature dynamically lowers supply current from 123 mA to 74 mA, and a shutdown mode further reduces current consumption to 24 mA.

The LTC6417 is available in a 3 x 4 mm 20-lead QFN package with an easy to use flow-through pinout. It is fully specified for 0°C to 70°C and -40°C to 105°C (case temperature) operation ranges.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Dual-range IMU with edge processing
EBV Electrolink Analogue, Mixed Signal, LSI
ST’s innovative LSM6DSV80X combines two accelerometer structures for 16 g and 80 g full-scale sensing, a gyroscope up 4000 dps, and embedded intelligence in a single component.

Read more...
Ultra-low-power wireless module
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The STM32WBA5MMG from STMicroelectronics is an ultra-low-power, small form factor, certified 2,4 GHz wireless module that supports Bluetooth LE, Zigbee 3.0, OpenThread, and IEEE 802.15.4 proprietary protocols.

Read more...
16-channel multicell battery monitor
Altron Arrow Power Electronics / Power Management
The ADBMS6830B is a multicell battery stack monitor that measures up to 16 series-connected battery cells with a lifetime total measurement error of less than 2 mV.

Read more...
Bringing Bluetooth Channel Sounding to automotive and beyond with KW47
Altron Arrow Telecoms, Datacoms, Wireless, IoT
NXP’s new Channel Sounding-certified KW47 and MCX W72 wireless MCUs are set to help automakers with distance measurement, bringing an additional ranging solution for car access and autonomous systems, and will be utilised across a broader spectrum of applications.

Read more...
Wi-Fi 6 and Bluetooth LE coprocessor module
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The ST67W611M1 from STMicroelectronics boasts an all-in-one design which, together with its capabilities, contribute to making it an attractive choice for IoT edge devices requiring a single-chip solution.

Read more...
Wi-Fi 6 plus Bluetooth LE SoC
Altron Arrow Telecoms, Datacoms, Wireless, IoT
Silicon Labs’ SiWx917M SoC is the company’s lowest power Wi-Fi 6 SoC, ideal for ultra-low power IoT wireless devices using Wi-Fi, Bluetooth, Matter, and IP networking for secure cloud connectivity.

Read more...
High-reliability isolation amplifiers
EBV Electrolink Analogue, Mixed Signal, LSI
The VIA series of isolation amplifiers from Vishay are designed to deliver exceptional thermal stability and precise measurement capabilities.

Read more...
Mibbo QT2C Series signal isolators
Conical Technologies Analogue, Mixed Signal, LSI
The Mibbo QT2C Series isolators support a rich combination of input and output signals, working with either current loops or voltage levels.

Read more...
Simple battery charger ICs for any chemistry
Altron Arrow Editor's Choice Power Electronics / Power Management
The LTC4162 is a highly integrated, high voltage multi-chemistry synchronous monolithic step-down battery charger and PowerPath manager with onboard telemetry functions and optional maximum power point tracking.

Read more...
Microchip enhances TrustMANAGER platform
Altron Arrow DSP, Micros & Memory
Firmware over-the-air updates and remote cryptographic key management provide scalable solutions for addressing IoT security challenges.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved