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LT1027
1
sn1027 1027fcs
Precision
5V Reference
ANALOG
INPUTS
V
IN
V
OUT
V
TRIM
GND
10k 22µF
8V TO 40V
LT1027
TO µC
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
V
CC
REF
+
REF
–
COM
AGND
V
–
DGND
LTC1290
1027 TA01
S
CLK
A
CLK
D
OUT
D
IN
CS
+
2.2µF
+
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (V)
5.002
5.004
5.006
25 75
1027 TA02
5.000
4.998
–25 0
50 100
4.996
4.994
Output Voltage
, LTC and LT are registered trademarks of Linear Technology Corporation.
Supplying V
REF
and V
CC
to the LTC
®
1290 12-bit ADC
■
Very Low Drift: 2ppm/°C Max TC
■
Pin Compatible with LT1021-5, REF-02,
(PDIP Package)
■
Output Sources 15mA, Sinks 10mA
■
Excellent Transient Response Suitable for
A-to-D Reference Inputs
■
Noise Reduction Pin
■
Excellent Long Term Stability
■
Less Than 1ppm
P-P
Noise (0.1Hz to 10Hz)
The LT
®
1027 is a precision reference with extra-low drift,
superior accuracy, excellent line and load regulation and
low output impedance at high frequency. This device is
intended for use in 12- to 16-bit A-to-D and D-to-A
systems where demanding accuracy requirements must
be met without the use of power hungry, heated substrate
references. The fast settling output recovers quickly from
load transients such as those presented by A-to-D converter
reference inputs. The LT1027 brings together both
outstanding accuracy and temperature coefficient
specifications.
The LT1027 reference is based on LTC’s proprietary
advanced subsurface Zener bipolar process which
eliminates noise and stability problems associated with
surface breakdown devices.
■
A-to-D and D-to-A Converters
■
Digital Voltmeters
■
Reference Standard
■
Precision Current Source
FEATURES
DESCRIPTIO
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APPLICATIO S
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TYPICAL APPLICATIO
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