Voltage Reference - Linear Technology
Description
LT6658 Precision Dual Output, High Current,
Low Noise, Voltage Reference
FEATURES
nn Dual Output Tracking Reference nn Each Output Configurable to 6V nn Output 1: 150mA Source/20mA Sink nn Output 2: 50mA Source/20mA Sink
nn Low Drift: nn A-Grade: 10ppm/°C Max nn B-Grade: 20ppm/°C Max
nn High Accuracy: nn A-Grade: ±0.
05% Max nn B-Grade: ±0.
1% Max
nn Low Noise: 1.
5ppmP-P (0.
1Hz to 10Hz) nn Wide Operating Voltage Range to 36V nn Load Regulation: 0.
25µV/mA nn AC PSRR: 96dB at 10kHz nn Kelvin Sense Connection on Outputs nn Thermal Shutdown nn Separate Supply Pins for Each Output nn Available Output Voltage Options: 1.
2V, 1.
8V, 2.
5V, 3V,
3.
3V, 5V.
All Options are Adjustable nn Available in Exposed Pad Package MSE16 and
4mm × 3mm DFN
APPLICATIONS
nn Microcontroller or FPGA with ADC/DAC Applications nn Data Acquisition Systems nn Automotive Control and Monitoring nn Precision Low Noise Regulators nn Instrumentation and Process Control
DESCRIPTION
The LT®6658 is a family of precision dual output references combining the performance of a precision voltage reference and a linear regulator that we call the Refulator™.
Both outputs are ideal for driving the reference inputs of high resolution ADCs and DACs, even with heavy loading, while simultaneously powering microcontrollers and other circuitry.
Both outputs have the same precision specifications and track each other over temperature and load.
Each output can be configured with external resistors to give an output voltage up to 6V.
Using Kelvin connections, the LT6658 typically has 0.
1ppm/mA load regulation with up to 150mA load current.
A noise reduction pin is available to band-limit and lower the total integrated noise.
Separate supply pins are provided for each output, providing an option to reduce power consumption and isolate the buffer amplifiers.
The outputs have excellent supply rejection and are stable with 1µF to 50µF capacitors.
The LT6658 is available in a 16-lead MSOP and DFN with an exposed pad for thermal ma...
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