900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Linear Technology Electronic Components Datasheet

LT1389 Datasheet

Nanopower Precision Shunt Voltage Reference

No Preview Available !

FEATURES
s Initial Voltage Accuracy: 0.05%
s Low Operating Current: 800nA
s Low Drift: 10ppm/°C Max
s Less Than 1Dynamic Impedance
s Available in 1.25V, 2.5V, 4.096V and
5V SO-8 Packages
U
APPLICATIO S
s Portable Meters
s Precision Regulators
s A/D and D/A Converters
s Calibrators
TYPICAL APPLICATIO
5V
4.7M
VOUT
1.25V
LT1389-1.25
1389 TA01
LT1389
Nanopower Precision
Shunt Voltage Reference
DESCRIPTIO
The LT®1389 is a nanopower, precision shunt voltage
reference. The bandgap reference uses trimmed preci-
sion thin-film resistors and improved curvature correction
techniques to achieve 0.05% initial voltage accuracy with
guaranteed 10ppm/°C maximum temperature drift. Volt-
age regulation is maintained to an ultralow 800nA operating
current. Advances in design, processing and packaging
achieve low temperature cycling hysteresis.
The LT1389 does not require an output compensation
capacitor, but is stable with capacitive loads. Low dy-
namic impedance makes the LT1389 reference easy to
use from unregulated supplies.
The LT1389 reference can be used as a high performance
upgrade to the LM185/LM385, LT1004, LT1034 and
LT1634 where lowest power and guaranteed tempera-
ture drift are required.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Temperature Drift
2.0
IR = 0.8µA
1.5 VOUT = 1.25V
1.0
0.5
0
– 0.5
– 1.0
– 1.5
– 2.0
0
10 20 30 40 50 60 70
TEMPERATURE (°C)
1389 TA02
1


Linear Technology Electronic Components Datasheet

LT1389 Datasheet

Nanopower Precision Shunt Voltage Reference

No Preview Available !

LT1389
ABSOLUTE AXI U RATI GS
(Note 1)
Operating Current
1.25V ............................................................... 20mA
2.5V ................................................................. 20mA
4.096V ............................................................. 10mA
5V .................................................................... 10mA
Forward Current .................................................. 20mA
Operating Temperature Range ..................... 0°C to 70°C
Storage Temperature Range (Note 2) ... – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
DNC* 1
DNC* 2
DNC* 3
GND 4
8 DNC*
7 DNC*
6 VOUT
5 GND
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 190°C/ W
ORDER PART
NUMBER
LT1389ACS8-1.25
LT1389BCS8-1.25
LT1389BCS8-2.5
LT1389BCS8-4.096
LT1389BCS8-5
S8 PART MARKING
389A12
389B12
389B25
1389B4
1389B5
*Connected internally. Do Not Connect external circuitry to these pins.
Consult factory for Industrial and Military grade parts.
AVAILABLE OPTIO S
TEMPERATURE
0°C to 70°C
OUTPUT
VOLTAGE
1.250
1.250
2.500
4.096
5.000
ACCURACY (%)
0.05
0.05
0.05
0.075
0.075
TEMPERATURE COEFFICIENT
(ppm/°C)
10
20
20
50
50
PART TYPE
LT1389ACS8-1.25
LT1389BCS8-1.25
LT1389BCS8-2.5
LT1389BCS8-4.096
LT1389BCS8-5
PART MARKING
389A12
389B12
389B25
1389B4
1389B5
1.25V ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 3)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Reverse Breakdown Voltage
LT1389ACS8/LT1389BCS8 (IR = 0.8µA)
1.24937 1.250 1.25062
– 0.05
0.05
V
%
LT1389ACS8 (IR = 0.8µA)
q 1.24849 1.250 1.25149
– 0.12
0.12
V
%
LT1389BCS8 (IR = 0.8µA)
q 1.24762 1.250 1.25237
– 0.19
0.19
V
%
Reverse Breakdown Change
with Current (Note 4)
0.8µA IR 200µA
0.20 0.4
mV
q
0.20 1.0
mV
200µA IR 2mA
0.3 1.0
mV
q
0.3 2.0
mV
Minimum Operating Current
Temperature Coefficient
Reverse Dynamic Impedance (Note 5)
LT1389ACS8 (IR = 0.8µA)
LT1389BCS8 (IR = 0.8µA)
0.8µA IR 2mA
Low Frequency Noise (Note 6)
IR = 0.8µA, 0.1Hz f 10Hz
q 0.6 µA
q 4 10 ppm/°C
q 4 20 ppm/°C
0.25 0.7
q
0.25 1.5
25 µVP-P
2


Part Number LT1389
Description Nanopower Precision Shunt Voltage Reference
Maker Linear Technology
PDF Download

LT1389 Datasheet PDF






Similar Datasheet

1 LT1381 Low Power 5V RS232 Dual Driver/Receiver with 0.1uF Capacitors
Linear Technology
2 LT1389 Nanopower Precision Shunt Voltage Reference
Linear Technology
3 LT138A 5A Positive Adjustable Voltage Regulator
Linear Technology





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy