LT6658BHMSE-2.5 Datasheet, PDF (1/30 Pages) Linear Integrated Systems – Precision Dual Output, High Current, Low Noise, Voltage Reference

Features
nn _{Dual Output Tracking Reference}
nn _{Each Output Configurable: 2.5V 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: 0.1ppm/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 in Exposed Pad Package MSE16}
Applications
nn _{Microcontroller with ADC/DAC Applications}
nn _{Data Acquisition Systems}
nn _{Automotive Control and Monitoring}
nn _{Precision Low Noise Regulators}
nn _{Instrumentation and Process Control}
LT6658
Precision Dual Output,
High Current, Low Noise,
Voltage Reference
Description
The LT^®6658 precision 2.5V dual output reference com-
bines the performance of a low drift low noise reference
and a linear regulator. Both outputs are ideal for driving
the precision reference inputs of high resolution ADCs and
DACs, even with heavy loading while simultaneously acting
as output supplies powering microcontrollers and other
supporting devices. Both outputs have the same precision
specifications and track each other over temperature and
load. Both outputs are nominally 2.5V, however each 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.
Dual outputs provide flexibility for powering reference
and regulator applications and localizing PCB routing. The
outputs have excellent supply rejection and are stable with
1µF to 50µF capacitors.
Short circuit and thermal protection help maintain stability
and prevent thermal overstress. The LT6658 is offered in
the MSE16 exposed pad package.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
Typical Application
Precision Dual Output 2.5V Reference and Supply
Output Voltage Temperature Drift Both Outputs
2.502
V_IN
5V TO 36V
V_IN1
V_{OUT2_F}
V_IN2
V_{OUT2_S}
V_IN
OD ^LT6658-2.5
0.1µF
V_{OUT1_F}
BYPASS
V_{OUT1_S}
1µF
GND
R_LOAD2
V_OUT2
2.5V
50mA
1µF
R_LOAD1
V_OUT1
2.5V
150mA
1µF
6658 TA01a
2.501
2.500
2.499
2.498
–50 –25
I_LOAD1 = 150mA
V_OUT1
V_OUT2
0 25 50 75 100 125 150
TEMPERATURE (°C)
6658 TA01b
For more information www.linear.com/LT6658
6658f
1