LTC6652 Datasheet, PDF (1/20 Pages) Linear Technology – Precision Low Drift Low Noise Buffered Reference

Features
n _{Low Drift: A Grade 5ppm/°C Max}

B Grade 10ppm/°C Max
n _{High Accuracy: A Grade ±0.05%, B Grade ±0.1%}
n _{Low Noise: 2.1ppmP-P (0.1Hz to 10Hz)}
n _{100% Tested at –40°C, 25°C and 125°C}
n _{Sinks and Sources Current: ±5mA}
n _{Low Power Shutdown: <2µA Maximum}
n _{Thermal Hysteresis: 105ppm for –40°C to 125°C}
Range
n _{Low Dropout: 300mV}
n _{No External Load Capacitor Required}
n _{Wide Supply Range to 13.2V}
n _{Available Output Voltage Options: 1.25V, 2.048V,}
2.5V, 3V, 3.3V, 4.096V, 5V
n _{8-Lead MSOP and 5mm × 5mm Surface Mount}
Hermetic Packages
Applications
n _{Automotive Control and Monitoring}
n _{High Temperature Industrial}
n _{High Resolution Data Acquisition Systems}
n _{Instrumentation and Process Control}
n _{Precision Regulators}
n _{Medical Equipment}
LTC6652
Precision Low Drift Low
Noise Buffered Reference
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/°C with a predictable temperature characteristic
and an output voltage accuracy of ±0.05%. The perfor-
mance over temperature should appeal to automotive,
high-performance industrial and other high temperature
applications.
The LTC6652 voltage references can be powered from a
13.2V supply or as little as 300mV above the output voltage
or 2.7V; whichever is higher. The LTC6652 references are
offered in an 8-Lead MSOP package and an 8-lead LS8
package. They boast low noise, excellent load regulation,
source and sink capability and exceptional line rejection,
making them a superior choice for demanding precision
applications. A shutdown mode allows power consump-
tion to be reduced when the reference is not needed.
The optional output capacitor can be left off when space
constraints are critical.
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.
Typical Application
Basic Connection
2.8V ≤ V_IN ≤ 13.2V
C_IN
0.1µF
(OPTIONAL)
V_IN LTC6652-2.5 V_OUT
SHDN _GND
V_OUT
2.5V
C_OUT
1µF
(OPTIONAL)
6652 TA01a
Output Voltage Temperature Drift
0.050
0.025
0
–0.025
–0.050
–40 –20
0 20 40 60 80 100 125
TEMPERATURE (°C)
6652 TA01b
6652fd
1