Analog Devices LT3999 | Demoboard ADSKPMB10-EV-FMCZ

Description

The ADSKPMB10-EV-FMCZ signal chain kit is a two-board solution, which consists of a Precision Medium Bandwidth Data Acquisition Solution on a PMOD form factor and a Fully Isolated PMOD-to-FMC interposer board.The Precision Medium Bandwidth Data Acquisition Solution features a discrete programmable gain instrumentation amplifier (PGIA) that was built using a 30V, High Speed, Low Noise, Low Bias Current, JFET Operational Amplifier, the ADA4627-1, a Precision Quad Matched Resistor Network, the LT5400, a Low Capacitance, 4-Channel, ±15 V/+12 V iCMOS™ Multiplexer, the ADG1209 and the internal Fully Differential Amplifier (FDA) ADC driver of the ADAQ4003. The PGIA in thru front-end offers high input impedance that allows direct interface with a variety of sensors. A programmable gain is often needed to adapt the circuit to different input signal amplitudes—unipolar or bipolar and single-ended or differential with varying common-mode voltages. The PGIA works with the ADAQ4003, an 18-Bit, 2 MSPS, µModule® Data Acquisition Solution.The Fully Isolated PMOD-to-FMC interposer board was designed using a Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control, the LT3999, a Robust 3.0kVrms Digital Isolators w/ Fail-Safe for the SPI lines and PGIA gain control pins, the ADuM152N and the ADuM120N, and a Low noise and ultra-low noise LDO regulators the ADP7105 and the ADP150N respectively.

Features

Fully Isolated PMOD-to-FMC interposer boardSoftware programmable bipolar input ranges (±1.1 V to ±11.0 V)Allows single-ended and differential signalsGΩ input impedance allows direct interface with sensorsOn-board 5 V reference and bufferComplete power management solutionSPI-/QSPI-/MICROWIRE-/DSP-compatible serial interfacePC software for control and data analysis of time and frequency domain

Typical applications

• Noise Immunity in Data Acquisition, RS232 and RS485
• Low Noise Isolated Supplies
• Distributed Power
• Multiple Output Supplies
• Positive-to-Negative Supplies
• Medical Instrument and Safety

More information

• Datasheet
• IC product information