LT1634 LINER [Linear Technology], LT1634 Datasheet

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LT1634

Manufacturer Part Number
LT1634
Description
Micropower Precision Shunt Voltage Reference
Manufacturer
LINER [Linear Technology]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LT1634ACS8-1.25
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT1634ACS8-1.25
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1634ACS8-1.25#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1634ACS8-1.25#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1634ACS8-2.5
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1634ACS8-2.5#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Part Number:
LT1634ACS8-4.096
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT1634AIS8-1.25
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT1634AIS8-4.096
Manufacturer:
LT
Quantity:
10 000
APPLICATIONS
FEATURES
TYPICAL
Initial Voltage Accuracy: 0.05%
Low Operating Current: 10 A
Low Drift: 10ppm/ C Max
Less Than 1 Dynamic Impedance
Available in 1.25V, 2.5V, 4.096V and 5V in SO-8
and TO-92 Packages
1.25V and 2.5V Available in MSOP Package
Both Commercial and Industrial Temperature Range
Parts Are Available
Portable Meters
Precision Regulators
A/D and D/A Converters
Calibrators
I
OUTPUT ACCURACY
BETTER THAN 0.075%
AT 500 A OUTPUT
S
Super Accurate 4.096V Output References
= 200 A
5V
APPLICATION
45k
LT1634-4.096
U
1 F
15
5
LTC
+
+
– 5V
LT1495
LT1495
5V
®
1043
4
17
– 5V
– 5V
1 F
5V
U
6
18
V
4.096V
V
– 4.096V
1634 TA01
OUT
OUT
DESCRIPTION
The LT
reference. The bandgap reference uses trimmed precision
thin film resistors to achieve 0.05% initial voltage accu-
racy. Improved curvature correction technique guaran-
tees 10ppm/ C maximum temperature drift. Advances in
design, processing and packaging techniques guarantee
10 A operation and low temperature cycling hysteresis.
The LT1634 does not require an output compensation
capacitor, but is stable with capacitive loads. Low dynamic
impedance makes the LT1634 reference easy to use from
unregulated supplies.
The LT1634 reference can be used as a high performance
upgrade to the LM185/LM385, LT1004 and LT1034
where lower power and guaranteed temperature drift is
required.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
Shunt Voltage Reference
1634 is a micropower, precision, shunt voltage
– 0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
– 40
I
V
Micropower Precision
R
OUT
= 10 A
–20
= 1.25V
U
Temperature Drift
0
TEMPERATURE ( C)
20
40
60
80
1634 TA02
100
LT1634
1

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LT1634 Summary of contents

Page 1

... The LT1634 does not require an output compensation capacitor, but is stable with capacitive loads. Low dynamic impedance makes the LT1634 reference easy to use from unregulated supplies. The LT1634 reference can be used as a high performance upgrade to the LM185/LM385, LT1004 and LT1034 where lower power and guaranteed temperature drift is required. ...

Page 2

... Lead Temperature (Soldering, 10 sec).................. 300 DNC* DNC* V OUT TEST** ORDER PART NUMBER LTCV LT1634ACS8-1.25 LTDF LT1634ACS8-2.5 LT1634ACS8-4.096 LT1634ACS8-5 LT1634AIS8-1.25 LT1634AIS8-2.5 LT1634AIS8-4.096 LT1634AIS8-5 LT1634BCS8-1.25 LT1634BCS8-2.5 LT1634BCS8-4.096 LT1634BCS8-5 LT1634BIS8-1.25 LT1634BIS8-2.5 LT1634BIS8-4.096 LT1634BIS8-5 TOP VIEW 1 8 DNC* DNC DNC* DNC DNC* V ...

Page 3

... 0.20 1.25V ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS Reverse Breakdown Voltage LT1634ACS8/LT1634BCMS8/LT1634BCS8/ LT1634AIS8/LT1634BIS8 (I LT1634CCZ (I LT1634ACS8 (I LT1634AIS8 (I LT1634BCS8/LT1634BCMS8 (I LT1634BIS8 (I LT1634CCZ (I Reverse Breakdown Change with Current (Note 3) 2mA I Minimum Operating Current Temperature Coefficient LT1634A, I LT1634B, I Reverse Dynamic Impedance (Note Low Frequency Noise (Note ...

Page 4

... A, 0.1Hz f 10Hz R Hysteresis (Note – 4.096V ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS Reverse Breakdown Voltage LT1634ACS8/LT1634BCS8/ LT1634AIS8/LT1634BIS8 (I LT1634CCZ (I LT1634ACS8 (I LT1634AIS8 (I LT1634BCS8 (I LT1634BIS8 (I LT1634CCZ (I Reverse Breakdown Change with Current (Note 3) 2mA I Minimum Operating Current 4 (Note ...

Page 5

... T = – ELECTRICAL CHARACTERISTICS PARAMETER CONDITIONS Reverse Breakdown Voltage LT1634ACS8/LT1634BCS8/ LT1634AIS8/LT1634BIS8 (I LT1634CCZ (I LT1634ACS8 (I LT1634AIS8 (I LT1634BCS8 (I LT1634BIS8 (I LT1634CCZ (I Reverse Breakdown Change with Current (Note 3) 2mA I Minimum Operating Current Temperature Coefficient LT1634A, I LT1634B, I Reverse Dynamic Impedance (Note ...

Page 6

... LT1634 1.25V TYPICAL PERFOR A CE CHARACTERISTICS Reverse Characteristics – 0.8 0 0.4 1.2 1.6 REVERSE VOLTAGE (V) 1634-1.25 G01 Reverse Dynamic Impedance 100 25Hz 10 1 0.1 0.001 0.01 0 100 REVERSE CURRENT (mA) 1634-1.25 G04 0.1Hz to 10Hz Noise – ...

Page 7

... OUT I = 100 OUT 1 0.1 0.01 0 FREQUENCY (kHz) Response Time 200 s/DIV OUT 80 LT1634 Reverse Voltage Change vs Current – 0.01 0.1 1 REVERSE CURRENT (mA) 1634-2.5 G02 Forward Characteristics 1 0.8 0.4 0 100 ...

Page 8

... LT1634 4.096V TYPICAL PERFOR A CE CHARACTERISTICS Reverse Characteristics – REVERSE VOLTAGE (V) 1634-4 G01 Reverse Dynamic Impedance 100 25Hz 10 1 0.1 0.001 0.01 0 100 REVERSE CURRENT (mA) 1635-4 G04 0.1Hz to 10Hz Noise – ...

Page 9

... 0.01 0.1 1 REVERSE CURRENT (mA) 1634-5 G02 Forward Characteristics 1 0.8 0.4 0 100 0.01 0.1 1 FORWARD CURRENT (mA) 1634-5 G05 Response Time 10V 0V 1634-5 G07 20ms/DIV 0.1 F OUT LT1634 10 100 1634-5 G03 10 100 1634-2.5 G06 1634-5 G08 9 ...

Page 10

... LT1634 U U APPLICATIONS INFORMATION The reverse characteristics of the LT1634 behave like a resistor in parallel with a Zener diode. This simple, well behaved characteristic is important to the proper opera- tion of circuits like Figure 1. The adjustable output voltage R U TYPICAL APPLICATIONS 5V 18k LT1634-4.096 7.5V TO 12V reference depends upon positive feedback from the LT1495’ ...

Page 11

... NOM 5 NOM 0.050 UNCONTROLLED LEAD DIMENSION (1.270) MAX 0.016 0.003 0.015 0.002 (0.406 0.076) (0.381 0.051) LT1634 0.118 0.004* (3.00 0.102 0.118 0.004** 0.192 0.004 (3.00 0.102) (4.88 0.10) MSOP (MS8) 1197 0.189 – 0.197* (4.801 – 5.004) ...

Page 12

... Micropower Voltage and Current Reference R3 R4 249k 24k 0.1% 5% – + 1/2 LT1495 1/2 LT1495 + – LT1634 1.25V COM V = 1.5V OUT OUT COMMENTS 3.7 A Max Supply Current, 1% 1.182V Reference, MSOP, PDIP and SO-8 Packages 0.075% Max, 10ppm/ C Max Drift, 2.5V, 5V and 10V Versions, MSOP, PDIP, SO-8, SOT-23 and TO-92 Packages 1 ...

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