LTC6655
0.25ppm Noise, Low Drift
Precision References
Fea T Descrip T
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Low Noise: 0.25ppm (0.1Hz to 10Hz) The LTC 6655 is a complete family of precision bandgap
P-P
625nV for the LTC6655-2.5 voltage references, offering exceptional noise and drift
P-P
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Low Drift: 2ppm/C Max performance. This low noise and drift is ideally suited
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High Accuracy: 0.025% Max for the high resolution measurements required by instru-
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No Humidity Sensitivity (LS8 Package) mentation and test equipment. In addition, the LTC6655
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Thermal Hysteresis (LS8): 30ppm (40C to 85C) is fully specified over the temperature range of 40C
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Long-Term Drift (LS8): 20ppm/kHr to 125C, ensuring its suitability for demanding auto-
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100% Tested at 40C, 25C and 125C motive and industrial applications. Advanced curvature
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Load Regulation: <10ppm/mA compensation allows this bandgap reference to achieve a
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Sinks and Sources Current: 5mA drift of less than 2ppm/C with a predictable temperature
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Low Dropout: 500mV characteristic and an output voltage accurate to 0.025%,
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Maximum Supply Voltage: 13.2V reducing or eliminating the need for calibration.
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Low Power Shutdown: <20A Max
The LTC6655 can be powered from as little as 500mV
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Available Output Voltages: 1.25V, 2.048V, 2.5V, 3V,
above the output voltage to as much as 13.2V. Superior
3.3V, 4.096V, 5V
load regulation with source and sink capability, coupled
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Available in an 8-Lead MSOP and High Stability
with exceptional line rejection, ensures consistent per-
Hermetic 5mm 5mm LS8 Packages
formance over a wide range of operating conditions. A
shutdown mode is provided for low power applications.
a T
The LTC6655 references are offered in an 8-lead MSOP
package and an 8-lead LS8 package. The LS8 is a 5mm
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Instrumentation and Test Equipment
5mm surface mount hermetic package that provides
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High Resolution Data Acquisition Systems
n outstanding stability.
Weigh Scales
n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
Precision Battery Monitors
Devices, Inc. All other trademarks are the property of their respective owners.
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Precision Regulators
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Medical Equipment
Typical a T
Low Frequency 0.1Hz to 10Hz Noise (LTC6655-2.5)
Basic Connection
LTC6655-2.5
3V < V 13.2V V V V
IN OUT
IN OUT_F
C
IN 500nV/DIV
SHDN V
OUT_S
C
0.1F
OUT
GND 10F
6655 TA01a
6655 TA01b
1s/DIV
6655ff
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For more information www.linear.com/LTC6655
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ion uresLTC6655
a Te Maxi Mu M r a T (Note 1)
Input Voltage Operating Temperature Range (Note 2).. 40C to 125C
V to GND .......................................... 0.3V to 13.2V Storage Temperature Range (Note 2) ..... 65C to 150C
IN
SHDN to GND ........................... 0.3V to (V + 0.3V) Lead Temperature Range (Soldering, 10 sec)
IN
Output Voltage: (Note 3) .................................................................300C
V ....................................... 0.3V to (V + 0.3V)
OUT_F IN
V ..................................................... 0.3V to 6V
OUT_S
Output Short-Circuit Duration ...................... Indefinite
p in c F T
TOP VIEW
GND*
TOP VIEW
8
SHDN 1 7 V
OUT_F
SHDN 1 8 GND*
7 V
V 2
IN OUT_F
V 2 6 V
IN OUT_S
GND* 3 6 V
OUT_S
5 GND*
GND 4
GND* 3 5 GND*
4
MS8 PACKAGE
8-LEAD PLASTIC MSOP
GND
T = 150C, = 300C/W
JMAX JA
LS8 PACKAGE
*CONNECT PINS TO DEVICE GND (PIN 4)
8-PIN LEADLESS CHIP CARRIER (5mm 5mm)
T = 150C, = 120C/W
JMAX JA
*CONNECT PINS TO DEVICE GND (PIN 4)
6655ff
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For more information www.linear.com/LTC6655
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