FEATURES
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LT6654
Precision Wide
Supply High Output Drive
Low Noise Reference
DESCRIPTION
The
LT
®
6654
is a family of small precision voltage ref-
erences that offers high accuracy, low noise, low drift,
low dropout and low power. The LT6654 operates from
voltages up to 36V and is fully specified from –55°C to
125°C. A buffered output ensures ±10mA of output drive
with low output impedance and precise load regulation.
These features, in combination, make the LT6654 ideal
for portable equipment, industrial sensing and control,
and automotive applications.
The LT6654 was designed with advanced manufactur-
ing techniques and curvature compensation to provide
10ppm/°C temperature drift and 0.05% initial accuracy.
Low thermal hysteresis ensures high accuracy and
1.6ppm
P-P
noise minimizes measurement uncertainty.
Since the LT6654 can also sink current, it can operate
as a low power negative voltage reference with the same
precision as a positive reference.
The LT6654 references are offered in 6-lead SOT-23
package and an 8-lead LS8 package. The LS8 is a 5mm
×
5mm surface mount hermetic package that provides
outstanding stability.
All registered trademarks and trademarks are the property of their respective owners.
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Low Drift:
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A-Grade: 10ppm/°C Max
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B-Grade: 20ppm/°C Max
High Accuracy:
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A-Grade: ±0.05% Max
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B-Grade: ±0.10% Max
Low Noise: 1.6ppm
P-P
(0.1Hz to 10Hz)
Wide Supply Range to 36V
Low Thermal Hysteresis: LS8 15ppm (–40°C to 125°C)
Long Term Drift: (LS8) 15ppm/√kHr
Line Regulation (Up to 36V): 5ppm/V Max
Low Dropout Voltage: 100mV Max
Sinks and Sources ±10mA
Load Regulation at 10mA: 8ppm/mA Max
Fully Specified from –55°C to 125°C
Available Output Voltage Options: 1.25V, 2.048V,
2.5V, 3V, 3.3V, 4.096V, 5V
Low Profile (1mm) ThinSOT™ Package and 5mm
×
5mm Surface Mount Hermetic Package
AEC-Q100 Qualified for Automotive Applications
APPLICATIONS
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Automotive Control and Monitoring
High Temperature Industrial
High Resolution Data Acquisition Systems
Instrumentation and Process Control
Precision Regulators
Medical Equipment
TYPICAL APPLICATION
Basic Connection
(V
OUT
+ 0.5V) < V
IN
< 36V
C
IN
0.1µF
IN
LT6654
GND
OUT
C
L
1µF
6654 TA01a
Output Voltage Temperature Drift
0.10
3 TYPICAL PARTS
LT6654-2.5
V
OUT
V
OUT
ACCURACY (%)
0.05
0.00
–0.05
–0.10
–60 –40 –20 0 20 40
60 80 100 120 140
TEMPERATURE (°C)
6654 TA01b
Document Feedback
For more information
www.analog.com
1
Rev. I
LT6654
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Voltage V
IN
to GND ........................... –0.3V to 38V
Output Voltage V
OUT
........................ –0.3V to V
IN
+ 0.3V
Output Short-Circuit Duration ......................... Indefinite
Specified Temperature Range
I-Grade.................................................–40°C to 85°C
H-Grade ............................................. –40°C to 125°C
MP-Grade .......................................... –55°C to 125°C
Operating Temperature Range ............... –55°C to 125°C
Storage Temperature Range (Note 2)..... –65°C to 150°C
Lead Temperature (Soldering, 10 sec.)
(Note 9) ................................................................. 300°C
PIN CONFIGURATION
TOP VIEW
V
IN
TOP VIEW
GND* 1
GND 2
DNC 3
6 V
OUT
5 DNC
4 V
IN
DNC
NC
GND
1
2
3
4
8
7
6
5
DNC
V
OUT
V
OUT
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 150°C,
θ
JA
= 192°C/W
DNC: CONNECTED INTERNALLY
DO NOT CONNECT EXTERNAL
CIRCUITRY TO THESE PINS
*CONNECT PIN TO DEVICE GND (PIN 2)
GND*
LS8 PACKAGE
8-PIN LEADLESS CHIP CARRIER (5mm
×
5mm)
T
JMAX
= 150°C,
θ
JA
= 125°C/W
DNC: CONNECTED INTERNALLY
DO NOT CONNECT EXTERNAL
CIRCUITRY TO THESE PINS
*CONNECT PIN TO DEVICE GND (PIN 3)
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI)
LT6654AIS6-1.25#TRMPBF
LT6654BIS6-1.25#TRMPBF
LT6654AHS6-1.25#TRMPBF
LT6654BHS6-1.25#TRMPBF
LT6654AMPS6-1.25#TRMPBF
LT6654BMPS6-1.25#TRMPBF
LT6654AIS6-2.048#TRMPBF
LT6654BIS6-2.048#TRMPBF
LT6654AHS6-2.048#TRMPBF
LT6654BHS6-2.048#TRMPBF
LT6654AMPS6-2.048#TRMPBF
LT6654BMPS6-2.048#TRMPBF
TAPE AND REEL
LT6654AIS6-1.25#TRPBF
LT6654BIS6-1.25#TRPBF
LT6654AHS6-1.25#TRPBF
LT6654BHS6-1.25#TRPBF
LT6654AMPS6-1.25#TRPBF
LT6654BMPS6-1.25#TRPBF
LT6654AIS6-2.048#TRPBF
LT6654BIS6-2.048#TRPBF
LT6654AHS6-2.048#TRPBF
LT6654BHS6-2.048#TRPBF
LT6654AMPS6-2.048#TRPBF
LT6654BMPS6-2.048#TRPBF
PART MARKING* PACKAGE DESCRIPTION
LTFVD
LTFVD
LTFVD
LTFVD
LTFVD
LTFVD
LTFVF
LTFVF
LTFVF
LTFVF
LTFVF
LTFVF
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
SPECIFIED TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
2
Rev. I
For more information
www.analog.com
LT6654
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI)
LT6654AIS6-2.5#TRMPBF
LT6654BIS6-2.5#TRMPBF
LT6654AHS6-2.5#TRMPBF
LT6654BHS6-2.5#TRMPBF
LT6654AMPS6-2.5#TRMPBF
LT6654BMPS6-2.5#TRMPBF
LT6654AIS6-3#TRMPBF
LT6654BIS6-3#TRMPBF
LT6654AHS6-3#TRMPBF
LT6654BHS6-3#TRMPBF
LT6654AMPS6-3#TRMPBF
LT6654BMPS6-3#TRMPBF
LT6654AIS6-3.3#TRMPBF
LT6654BIS6-3.3#TRMPBF
LT6654AHS6-3.3#TRMPBF
LT6654BHS6-3.3#TRMPBF
LT6654AMPS6-3.3#TRMPBF
LT6654BMPS6-3.3#TRMPBF
LT6654AIS6-4.096#TRMPBF
LT6654BIS6-4.096#TRMPBF
LT6654AHS6-4.096#TRMPBF
LT6654BHS6-4.096#TRMPBF
LT6654AMPS6-4.096#TRMPBF
LT6654BMPS6-4.096#TRMPBF
LT6654AIS6-5#TRMPBF
LT6654BIS6-5#TRMPBF
LT6654AHS6-5#TRMPBF
LT6654BHS6-5#TRMPBF
LT6654AMPS6-5#TRMPBF
LT6654BMPS6-5#TRMPBF
LEAD FREE FINISH
†
LT6654AHLS8-2.048#PBF
LT6654BHLS8-2.048#PBF
LT6654AHLS8-2.5#PBF
LT6654BHLS8-2.5#PBF
LT6654AHLS8-4.096#PBF
LT6654BHLS8-4.096#PBF
LT6654AHLS8-5#PBF
LT6654BHLS8-5#PBF
TAPE AND REEL
LT6654AIS6-2.5#TRPBF
LT6654BIS6-2.5#TRPBF
LT6654AHS6-2.5#TRPBF
LT6654BHS6-2.5#TRPBF
LT6654AMPS6-2.5#TRPBF
LT6654BMPS6-2.5#TRPBF
LT6654AIS6-3#TRPBF
LT6654BIS6-3#TRPBF
LT6654AHS6-3#TRPBF
LT6654BHS6-3#TRPBF
LT6654AMPS6-3#TRPBF
LT6654BMPS6-3#TRPBF
LT6654AIS6-3.3#TRPBF
LT6654BIS6-3.3#TRPBF
LT6654AHS6-3.3#TRPBF
LT6654BHS6-3.3#TRPBF
LT6654AMPS6-3.3#TRPBF
LT6654BMPS6-3.3#TRPBF
LT6654AIS6-4.096#TRPBF
LT6654BIS6-4.096#TRPBF
LT6654AHS6-4.096#TRPBF
LT6654BHS6-4.096#TRPBF
LT6654AMPS6-4.096#TRPBF
LT6654BMPS6-4.096#TRPBF
LT6654AIS6-5#TRPBF
LT6654BIS6-5#TRPBF
LT6654AHS6-5#TRPBF
LT6654BHS6-5#TRPBF
LT6654AMPS6-5#TRPBF
LT6654BMPS6-5#TRPBF
PART MARKING*
542048
542048
665425
665425
544096
544096
66545
66545
PART MARKING* PACKAGE DESCRIPTION
LTFJY
LTFJY
LTFJY
LTFJY
LTFJY
LTFJY
LTFVG
LTFVG
LTFVG
LTFVG
LTFVG
LTFVG
LTFVH
LTFVH
LTFVH
LTFVH
LTFVH
LTFVH
LTFVJ
LTFVJ
LTFVJ
LTFVJ
LTFVJ
LTFVJ
LTFVK
LTFVK
LTFVK
LTFVK
LTFVK
LTFVK
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
SPECIFIED TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
SPECIFIED TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
PACKAGE DESCRIPTION
8-Lead Ceramic LCC (5mm × 5mm)
8-Lead Ceramic LCC (5mm × 5mm)
8-Lead Ceramic LCC (5mm × 5mm)
8-Lead Ceramic LCC (5mm × 5mm)
8-Lead Ceramic LCC (5mm × 5mm)
8-Lead Ceramic LCC (5mm × 5mm)
8-Lead Ceramic LCC (5mm × 5mm)
8-Lead Ceramic LCC (5mm × 5mm)
For more information
www.analog.com
3
Rev. I
LT6654
ORDER INFORMATION
AUTOMOTIVE PRODUCTS**
TAPE AND REEL (MINI)
LT6654AHS6-1.25#WTRMPBF
LT6654BHS6-1.25#WTRMPBF
LT6654AHS6-2.048#WTRMPBF
LT6654BHS6-2.048#WTRMPBF
LT6654AHS6-2.5#WTRMPBF
LT6654BHS6-2.5#WTRMPBF
LT6654AHS6-3#WTRMPBF
LT6654BHS6-3#WTRMPBF
LT6654AHS6-3.3#WTRMPBF
LT6654BHS6-3.3#WTRMPBF
LT6654AHS6-4.096#WTRMPBF
LT6654BHS6-4.096#WTRMPBF
LT6654AHS6-5#WTRMPBF
LT6654BHS6-5#WTRMPBF
TAPE AND REEL
LT6654AHS6-1.25#WTRPBF
LT6654BHS6-1.25#WTRPBF
LT6654AHS6-2.048#WTRPBF
LT6654BHS6-2.048#WTRPBF
LT6654AHS6-2.5#WTRPBF
LT6654BHS6-2.5#WTRPBF
LT6654AHS6-3#WTRPBF
LT6654BHS6-3#WTRPBF
LT6654AHS6-3.3#WTRPBF
LT6654BHS6-3.3#WTRPBF
LT6654AHS6-4.096#WTRPBF
LT6654BHS6-4.096#WTRPBF
LT6654AHS6-5#WTRPBF
LT6654BHS6-5#WTRPBF
PART MARKING* PACKAGE DESCRIPTION
LTFVD
LTFVD
LTFVF
LTFVF
LTFJY
LTFJY
LTFVG
LTFVG
LTFVH
LTFVH
LTFVJ
LTFVJ
LTFVK
LTFVK
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
SPECIFIED TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container.
Contact the factory for parts specified with wider operating temperature ranges.
Contact the factory for information on lead based finish parts.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
†
This product is only offered in trays. For more information go to:
https://www.analog.com/en/design-center/packaging-quality-symbols-footprints.html
**Versions
of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These
models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your
local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for
these models.
4
Rev. I
For more information
www.analog.com
LT6654
AVAILABLE OPTIONS
INITIAL ACCURACY
TEMPERATURE COEFFICIENT
10ppm/°C
0.05%
20ppm/°C
0.1%
10ppm/°C
0.05%
20ppm/°C
0.1%
10ppm/°C
0.05%
20ppm/°C
0.1%
10ppm/°C
2.048V
0.05%
0.1%
20ppm/°C
0.05%
10ppm/°C
0.05%
10ppm/°C
0.1%
20ppm/°C
0.1%
20ppm/°C
0.05%
10ppm/°C
0.1%
20ppm/°C
10ppm/°C
2.5V
0.05%
0.1%
20ppm/°C
0.05%
10ppm/°C
0.05%
10ppm/°C
0.1%
20ppm/°C
0.1%
20ppm/°C
0.05%
10ppm/°C
0.1%
20ppm/°C
10ppm/°C
3V
0.05%
0.1%
20ppm/°C
0.05%
10ppm/°C
0.1%
20ppm/°C
0.05%
10ppm/°C
0.1%
20ppm/°C
10ppm/°C
3.3V
0.05%
20ppm/°C
0.1%
10ppm/°C
0.05%
20ppm/°C
0.1%
10ppm/°C
0.05%
20ppm/°C
0.1%
10ppm/°C
0.05%
4.096V
20ppm/°C
0.1%
10ppm/°C
0.05%
10ppm/°C
0.05%
20ppm/°C
0.1%
20ppm/°C
0.1%
10ppm/°C
0.05%
20ppm/°C
0.1%
10ppm/°C
5V
0.05%
20ppm/°C
0.1%
10ppm/°C
0.05%
10ppm/°C
0.05%
20ppm/°C
0.1%
20ppm/°C
0.1%
10ppm/°C
0.05%
20ppm/°C
0.1%
** See the Order Information section for complete part number listing.
OUTPUT VOLTAGE
1.25V
ORDER PART NUMBER**
LT6654AIS6-1.25
LT6654BIS6-1.25
LT6654AHS6-1.25
LT6654BHS6-1.25
LT6654AMPS6-1.25
LT6654BMPS6-1.25
LT6654AIS6-2.048
LT6654BIS6-2.048
LT6654AHS6-2.048
LT6654AHLS8-2.048
LT6654BHS6-2.048
LT6654BHLS8-2.048
LT6654AMPS6-2.048
LT6654BMPS6-2.048
LT6654AIS6-2.5
LT6654BIS6-2.5
LT6654AHS6-2.5
LT6654AHLS8-2.5
LT6654BHS6-2.5
LT6654BHLS8-2.5
LT6654AMPS6-2.5
LT6654BMPS6-2.5
LT6654AIS6-3
LT6654BIS6-3
LT6654AHS6-3
LT6654BHS6-3
LT6654AMPS6-3
LT6654BMPS6-3
LT6654AIS6-3.3
LT6654BIS6-3.3
LT6654AHS6-3.3
LT6654BHS6-3.3
LT6654AMPS6-3.3
LT6654BMPS6-3.3
LT6654AIS6-4.096
LT6654BIS6-4.096
LT6654AHS6-4.096
LT6654AHLS8-4.096
LT6654BHS6-4.096
LT6654BHLS8-4.096
LT6654AMPS6-4.096
LT6654BMPS6-4.096
LT6654AIS6-5
LT6654BIS6-5
LT6654AHS6-5
LT6654AHLS8-5
LT6654BHS6-5
LT6654BHLS8-5
LT6654AMPS6-5
LT6654BMPS6-5
SPECIFIED TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
–40°C to 85°C
–40°C to 85°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
For more information
www.analog.com
5
Rev. I
