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ZR458 반도체 회로 부품 판매점

PRECISION 2.45 VOLT VOLTAGE REFERENCE



ETC 로고
ETC
ZR458 데이터시트, 핀배열, 회로
PRECISION 2.45 VOLT
VOLTAGE REFERENCE
ISSUE 2 — FEBRUARY 1998
DEVICE DESCRIPTION
The ZR458 uses a bandgap circuit design to
achieve a precision voltage reference of 2.45
volts.
The ZR458 design provides a stable voltage
without an external capacitor and is stable
with capacitive loads. The ZR458 is
recommended for operation between 2mA
and 120mA.
ZR458
FEATURES
TO92 style package
No stabilising capacitor required
Typical TC 15ppm/°C
Typical slope resistance 0.26
1% tolerance
Industrial temperature range (Military
temperature range available on request)
Operating current 2mA to 120mA
Alternative package options and
tolerances available
APPLICATIONS
Battery powered and portable
equipment.
Metering and measurement systems.
Instrumentation.
Test equipment.
Data acquisition systems.
SCHEMATIC DIAGRAM
VR
1.25VREF
Gnd
4-196


ZR458 데이터시트, 핀배열, 회로
ZR458
ABSOLUTE MAXIMUM RATING
Reverse Current
200mA
Forward Current
25mA
Operating Temperature -40 to 85°C
Storage Temperature
-55 to 125°C
Power Dissipation (Tamb=25°C)
E-Line, 2 pin (TO92)
500mW
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
SYMBOL PARAMETER
CONDITIONS
LIMITS
MIN TYP MAX
TOL. UNITS
%
VR Reverse Breakdown Voltage IR=5mA
IMIN Minimum Operating Current
2.43 2.45 2.47
2
1V
mA
IR Recommended Operating
Current
2 120 mA
TC
RS §
Average Reverse
Breakdown Voltage
Temp. Co.
Slope Resistance
ZR458
ZR458A IR(min) to
IR(max)
30 100
15 50
0.26 0.5
ppm/°C
ZR Reverse Dynamic Impedance IR = 5mA
f = 100Hz
IAC= 0.1 IR
EN Wideband Noise Voltage
IR= 5mA
f = 10Hz to
10kHz
0.28 1
65
µV(rms)
TC
=
(VR(max)VR(min)) x 1000000
VR x (T(max)T(min))
Note: VR(max) - VR(min) is the maximum
deviation in reference voltage measured
over the full operating temperature
range.
§
RS
=
VR
Change(IR (min) to IR
IR (max) − IR (min)
(max))
4-197




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