ZR404DTA [ETC]
IC-SM-2.45V PRECISION REFERENCE ; IC- SM- 2.45V精密基准电压源\n
| 型号： | ZR404DTA |
| 厂家： | 
ETC |
| 描述： | IC-SM-2.45V PRECISION REFERENCE
|
| 文件： | 总4页 (文件大小：62K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PRECISION 2.45 VOLT
VOLTAGE REFERENCE
ISSUE 2 — FEBRUARY 1998
ZR404
DEVICE DESCRIPTION
FEATURES
The ZR404 uses a bandgap circuit design to
achieve a precision voltage reference of 2.45
volts. The device is available in small outline
surface mount packages, ideal for
applications where space saving is
important as well as a 2 pin TO92 style
package for through hole requirements.
Small outline SO8 and TO92
style packages
•
No stabilising capacitor required
Typical TC 15ppm/°C
•
•
•
•
•
Typical slope resistance 0.26Ω
± 3% tolerance
The ZR404 design provides a stable voltage
without an external capacitor and is stable
with capacitive loads. The ZR404 is
recommended for operation between 2mA
and 120mA.
Industrial temperature range (Military
temperature range available on request)
Operating current 2mA to 120mA
•
•
Alternative package options and
tolerances are available
APPLICATIONS
Battery powered and portable
equipment.
•
Metering and measurement systems.
•
Instrumentation.
•
Test equipment.
•
Data acquisition systems.
•
Precision power supplies.
•
SCHEMATIC DIAGRAM
VR
1.25VREF
Gnd
4-169
ZR404
ABSOLUTE MAXIMUM RATING
Power Dissipation (Tamb=25°C)
Reverse Current
200mA
E-Line, 2 pin (TO92)
SO8
500mW
625mW
Forward Current
25mA
Operating Temperature
Storage Temperature
-40 to 85°C
-55 to 125°C
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
CONDITIONS
LIMITS
TOL.
%
UNITS
SYMBOL PARAMETER
MIN TYP MAX
3
VR
IMIN
IR
Reverse Breakdown Voltage
IR=5mA
2.38
2.45 2.52
V
Minimum Operating Current
2
mA
mA
Recommended Operating
Current
2
120
TC
†
Average Reverse Breakdown
Voltage Temp. Co.
15
50
ppm/°C
I
R(min) to
IR(max)
RS
ZR
§
Slope Resistance
0.26 0.5
0.28 1
Ω
Ω
Reverse Dynamic Impedance IR = 5mA
= 100Hz
AC=0.1 IR
f
I
EN
Wideband Noise Voltage
IR= 5mA
f = 10Hz to
10kHz
65
µV(rms)
(VR(max)−VR(min)) x 1000000
†
T =
C
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.
VR Change(I (min) to IR (max))
R
§
R =
S
I
R (max) − IR (min)
4-170
ZR404
TYPICAL CHARACTERISTICS
1.6
1.4
1.2
1.0
0.8
0.6
0.4
2.46
2.45
2.44
2.43
1
10
100
1000
-40
-20
0
20
40
60
80
Forward Current (mA)
Temperature (°C)
Forward Characteristics
Temperature Drift
100
0.6
IR=2mA
TA=-40°C
10
IR=5mA
0.4
0.2
0
IR=20mA
TA=25°C
TA=85°C
1
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (KHz)
Reference Current (mA)
Slope Resistance v Current
Slope Resistance v Frequency
4.0
3.0
20mA
TA=25°C
2.0
1.0
2mA
VIN
0.36K
20mA
VR
3K6
2mA
2.0
0
10
0
0
0
1.0
2.0
3.0
0
5
10
15
20
Reverse Voltage (V)
Time (µs)
Transient Response
Reverse Characteristics
4-171
ZR404
CONNECTION DIAGRAMS
E-Line, 2 pin Package Suffix – V
SO8 Package Suffix – D
Bottom View
Top View
ORDERING INFORMATION
Part No
Tol% Package
Partmark
ZR404
3
3
E-Line †
SO8
ZR404
ZR404
ZR404D
† E-Line 2 pin
4-172
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