LTC6652
Precision Low Drift Low
Noise Buffered Reference
Features
Description
The LTC®6652 family of precision, low drift, low noise
references is fully specified over the temperature range
of –40°C to 125°C. High order curvature compensation
allows these references to achieve a low drift of less than
5ppm/°Cwithapredictabletemperaturecharacteristicand
an output voltage accuracy of 0.05ꢀ. The performance
overtemperatureshouldappealtoautomotive,highperfor-
manceindustrialandotherhightemperatureapplications.
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Low Drift:
A-Grade 5ppm/°C Max
B-Grade 10ppm/°C Max (MSOP8)
B-Grade 8ppm/°C Max (LS8)
High Accuracy:
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A Grade 0ꢀ05ꢁ Max
B-Grade 0ꢀ1ꢁ Max
Low Noise: 2ꢀ1ppm (0ꢀ1Hz to 10Hz)
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P-P
100ꢁ Tested at –40°C, 25°C and 125°C
Sinks and Sources Current: 5mA
Low Power Shutdown: <2µA Maximum
Thermal Hysteresis (LS8): 45ppm (–40°C to 125°C)
Long-Term Drift (LS8): 20ppm/√kHr
Low Dropout: 300mV
Available Output Voltage Options: 1.25V, 2.048V, 2.5V,
3V, 3.3V, 4.096V, 5V
8-Lead MSOP and 5mm × 5mm Surface Mount
Hermetic Packages
The LTC6652 voltage references can be powered from
supply voltages up to 13.2V. They boast low noise, ex-
cellent load regulation, source and sink capability and
exceptional line rejection, making them a superior choice
for demanding precision applications. A shutdown mode
allows power consumption to be reduced when the refer-
ence is not needed. The optional output capacitor can be
left off when space constraints are critical.
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The LTC6652 references are offered in an 8-lead MSOP
package and an 8-lead LS8 package. The LS8 is a 5mm
× 5mm surface mount hermetic package that provides
outstanding stability.
applications
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Automotive Control and Monitoring
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L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
High Temperature Industrial
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High Resolution Data Acquisition Systems
Instrumentation and Process Control
Precision Regulators
Medical Equipment
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typical application
Output Voltage Temperature Drift
0.050
Basic Connection
0.025
0
V
OUT
V
V
OUT
LTC6652-2.5
GND
2.8V ≤ V ≤ 13.2V
IN
IN
2.5V
C
OUT
C
IN
SHDN
1µF
0.1µF
(OPTIONAL)
(OPTIONAL)
6652 TA01a
–0.025
–0.050
–40 –20
0
20 40 60 80 100 125
TEMPERATURE (°C)
6652 TA01b
6652fe
1
For more information www.linear.com/6652