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Linear Technology Electronic Components Datasheet

RH1021-5 Datasheet

Precision 5V Reference

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RH1021-5
Precision 5V Reference
DESCRIPTION
The RH1021-5 is a precision 5V reference with ultralow
drift and noise, extremely good long term stability and
almost total immunity to input voltage variations. The
reference output will source and sink up to 10mA. Unique
circuit design makes the RH1021-5 the first IC reference
to offer ultralow drift without the use of high power on-
chip heaters.
The wafer lots are processed to Linear Technology’s in-
house Class S flow to yield circuits usable in stringent
military applications.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ABSOLUTE MAXIMUM RATINGS
Input Voltage ........................................................... 40V
Input/Output Voltage Differential ............................. 35V
Trim Pin-to-Ground Voltage
Positive................................................ Equal to VOUT
Negative ........................................................... – 20V
Output Short-Circuit Duration
VIN = 35V ........................................................ 10 sec
VIN 20V ................................................... Indefinite
Operating Temperature Range .............. – 55°C to 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
BUR -I CIRCUIT
8
1
7
20V 2 RH1021-5 6
3
4
5
–20V
PACKAGE/ORDER INFORMATION
TOP VIEW
NC*
NC* 1
8
7 NC*
VIN 2
6 VOUT
NC* 3
5 TRIM
4
GND
H PACKAGE
8-LEAD TO-5 METAL CAN
* Connected internally. Do not connect external
circuitry to these pins.
1


Linear Technology Electronic Components Datasheet

RH1021-5 Datasheet

Precision 5V Reference

No Preview Available !

RH1021-5
TABLE 1: ELECTRICAL CHARACTERISTICS (Preirradiation) (Note 8)
SYMBOL PARAMETER
VOUT Output Voltage
TCVOUT Output Voltage
Temperature Coefficient
V OUT
V IN
V OUT
I OUT
Line Regulation
Load Regulation
(Sourcing Current)
Load Regulation
(Sinking Current)
IS Supply Current
Output Voltage Noise
Long Term Stability
of VOUT
Temperature Hysteresis
of VOUT
CONDITIONS
RH1021CM-5
RH1021BM-5, DM-5
RH1021BM-5
RH1021CM-5, DM-5
7.2V V IN 10V
10V V IN 40V
0 I OUT 10mA
0 I OUT 10mA
0.1Hz f 10Hz
10Hz f 1kHz
T = 1000 Hrs
Noncumulative
T = ± 25° Hrs
TA = 25°C
SUB- – 55°C T A 125°C SUB-
NOTES MIN TYP MAX GROUP MIN TYP MAX GROUP UNITS
1 4.9975
1 4.95
5.0025
5.05
1
1
V
V
2 5 2,3 ppm/°C
2 20 2,3 ppm/°C
3 12 1
3 61
20 2,3 ppm/V
10 2,3 ppm/V
3 20 1
35 2,3 ppm/mA
3 100 1
150 2,3 ppm/mA
1.2 1
43
4 3.5 4
5 15
10
1.5 2,3
mA
µVP-P
µVRMS
ppm
ppm
TABLE 1A: ELECTRICAL CHARACTERISTICS (Postirradiation) (Note 6)
SYMBOL PARAMETER
CONDITIONS
10Krad(Si) 20Krad(Si) 50Krad(Si) 100Krad(Si) 200Krad(Si)
NOTES MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX UNITS
VOUT Output Voltage
RH1021CM-5
RH1021BM-5, DM-5
1 4.9975 5.0025 4.995 5.005 4.993 5.007 4.9925 5.008 4.99 5.01
1 4.95 5.05 4.945 5.055 4.942 5.058 4.94 5.06 4.935 5.065
V
V
TCVOUT Output Voltage
RH1021BM-5
Temperature Coefficient RH1021CM-5, DM-5
2
2
5 55
20 20 20
7 10 ppm/°C
22 25 ppm/°C
V OUT Line Regulation
V IN
7.2V V IN 10V
10V V IN 40V
3
3
12 12 13.5 15 18 ppm/V
6 66
7 9 ppm/V
V OUT
I OUT
Load Regulation
(Sourcing Current)
Load Regulation
(Sinking Current)
0 I OUT 10mA
0 I OUT 10mA
3,7
3
20 20 20
100 100 100
20 20 ppm/mA
100 150 ppm/mA
IS Supply Current
1.2 1.2 1.2
1.2 1.2 mA
2


Part Number RH1021-5
Description Precision 5V Reference
Maker Linear Technology
Total Page 4 Pages
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