120 140
60 80 100
LT6654
Precision Wide
Supply High Output Drive
Low Noise Reference
Fea T Descrip T
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Low Drift: The LT 6654 is a family of small precision voltage ref-
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A-Grade: 10ppm/C Max erences that offers high accuracy, low noise, low drift,
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B-Grade: 20ppm/C Max low dropout and low power. The LT6654 operates from
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High Accuracy: voltages up to 36V and is fully specified from 55C to
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A-Grade: 0.05% Max 125C. A buffered output ensures 10mA of output drive
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B-Grade: 0.10% Max with low output impedance and precise load regulation.
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Low Noise: 1.6ppm (0.1Hz to 10Hz) These features, in combination, make the LT6654 ideal
P-P
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Wide Supply Range to 36V for portable equipment, industrial sensing and control,
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Low Thermal Hysteresis: LS8 15ppm (40C to 125C) and automotive applications.
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Long Term Drift: (LS8) 15ppm/kHr
The LT6654 was designed with advanced manufactur-
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Line Regulation (Up to 36V): 5ppm/V Max
ing techniques and curvature compensation to provide
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Low Dropout Voltage: 100mV Max
10ppm/C temperature drift and 0.05% initial accuracy.
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Sinks and Sources 10mA
Low thermal hysteresis ensures high accuracy and
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Load Regulation at 10mA: 8ppm/mA Max
1.6ppm noise minimizes measurement uncertainty.
P-P
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Fully Specified from 55C to 125C
Since the LT6654 can also sink current, it can operate
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Available Output Voltage Options: 1.25V, 2.048V,
as a low power negative voltage reference with the same
2.5V, 3V, 3.3V, 4.096V, 5V
precision as a positive reference.
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Low Profile (1mm) ThinSOT Package and 5mm
The LT6654 references are offered in 6-lead SOT-23
5mm Surface Mount Hermetic Package
package and an 8-lead LS8 package. The LS8 is a 5mm
a T
5mm surface mount hermetic package that provides
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Automotive Control and Monitoring
outstanding stability.
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High Temperature Industrial
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT is a trademark of Analog Devices, Inc. All other trademarks are the property of their
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High Resolution Data Acquisition Systems
respective owners.
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Instrumentation and Process Control
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Precision Regulators
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Medical Equipment
Typical a T
Output Voltage Temperature Drift
0.10
3 TYPICAL PARTS
LT6654-2.5
Basic Connection
0.05
(V + 0.5V) < V < 36V IN LT6654 OUT V
OUT IN OUT
GND
C
C
IN L
0.00
0.1F 1F
6654 TA01a
0.05
0.10
60 40 20 0 20 40
TEMPERATURE (C)
6654 TA01b
6654fh
1
For more information www.linear.com/LT6654
V ACCURACY (%)
OUT
ion pplica
ions pplica
ion uresLT6654
a Te Maxi Mu M r a T (Note 1)
Input Voltage V to GND ........................... 0.3V to 38V Operating Temperature Range ............... 55C to 125C
IN
Output Voltage V ........................ 0.3V to V + 0.3V Storage Temperature Range (Note 2) ..... 65C to 150C
OUT IN
Output Short-Circuit Duration ......................... Indefinite Lead Temperature (Soldering, 10 sec.)
Specified Temperature Range (Note 9) .................................................................300C
I-Grade.................................................40C to 85C
H-Grade ............................................. 40C to 125C
MP-Grade .......................................... 55C to 125C
p in c F T
TOP VIEW
V
IN
TOP VIEW
8
DNC 1 7
DNC
GND* 1 6 V
OUT
GND 2 5 DNC
NC 2 6 V
OUT
DNC 3 4 V
IN
GND 3 5 V
OUT
4
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
GND*
T = 150C, = 192C/W
JMAX JA
LS8 PACKAGE
DNC: CONNECTED INTERNALLY
8-PIN LEADLESS CHIP CARRIER (5mm 5mm)
DO NOT CONNECT EXTERNAL
T = 150C, = 125C/W
JMAX JA
CIRCUITRY TO THESE PINS
DNC: CONNECTED INTERNALLY
*CONNECT PIN TO DEVICE GND (PIN 2)
DO NOT CONNECT EXTERNAL
CIRCUITRY TO THESE PINS
*CONNECT PIN TO DEVICE GND (PIN 3)
o r Der i n F Ma T