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| 型號： | A1326LUA-T |
| 元件分類： | 磁阻傳感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, RECTANGULAR, THROUGH HOLE MOUNT |
| 封裝： | 4 X 1.50 MM, 3 MM HEIGHT, LEAD FREE, SIP-3 |
| 文件頁數(shù)： | 5/11頁 |
| 文件大?。?/td> | 277K |
| 代理商： | A1326LUA-T |
Linear Hall Effect Sensor ICs with Analog Output
A1324, A1325,
and A1326
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
OPERATING CHARACTERISTICS Valid throughout TA range, CBYPASS = 0.1 μF, VCC = 5 V; unless otherwise noted
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Unit1
Electrical Characteristics
Supply Voltage
VCC
4.5
5.0
5.5
V
Supply Current
ICC
No load on VOUT
–
6.9
9
mA
Power-On Time2
tPO
TA = 25°C, CL (PROBE) = 10 pF
–
32
–
μs
Supply Zener Clamp Voltage
VZ
TA = 25°C, ICC = 12 mA
6
8.3
–
V
Internal Bandwidth
BWi
Small signal, –3 dB
–
17
–
kHz
Chopping Frequency3
fC
TA = 25°C
–
400
–
kHz
Output Characteristics
Quiescent Voltage Output
VOUT(Q)
B = 0 G, TA = 25°C
2.425
2.500
2.575
V
Output Referred Noise
VN
A1324, TA = 25°C, CBYPASS = 0.1 μF
–
7.0
–
mV(p-p)
A1325, TA = 25°C, CBYPASS = 0.1 μF
–
4.4
–
mV(p-p)
A1326, TA = 25°C, CBYPASS = 0.1 μF
–
3.5
–
mV(p-p)
Input Referred RMS Noise Density
VNRMS
TA = 25°C, CBYPASS = open, no load on VOUT,
f << BWi
–
1.3
–
mG/√Hz
DC Output Resistance
ROUT
–< 1–
Ω
Output Load Resistance
RL
VOUT to VCC
4.7
–
kΩ
VOUT to GND
4.7
–
kΩ
Output Load Capacitance
CL
VOUT to GND
–
10
nF
Output Saturation Voltage
VOUT(sat)HIGH RPULLDOWN = 4.7 kΩ, VCC = 5 V
4.7
–
V
VOUT(sat)LOW RPULLUP = 4.7 kΩ, VCC = 5 V
–
0.30
V
Magnetic Characteristics
Sensitivity
Sens
A1324, TA = 25°C
4.750
5.000
5.250
mV/G
A1325, TA = 25°C
2.969
3.125
3.281
mV/G
A1326, TA = 25°C
2.375
2.500
2.625
mV/G
Sensitivity Temperature Coefficient
TCSens
Programmed at TA = 150°C, calculated relative
to Sens at 25°C
–
0.03
–
%/°C
Error Components
Sensitivity Drift at Maximum Ambient
Operating Temperature
Sens(TAmax) From hot to room temperature
–1.25
–
8.75
%
Sensitivity Drift at Minimum Ambient
Operating Temperature
Sens(TAmin) From cold to room temperature
–6.95
–
3.05
%
Quiescent Voltage Output Drift
Through Temperature Range
VOUT(Q)
Defined in terms of magnetic flux density, B
–10
–
10
G
Linearity Sensitivity Error
LinERR
–1.5
–
1.5
%
Symmetry Sensitivity Error
SymERR
–1.5
–
1.5
%
Ratiometry Quiescent Voltage
Output Error4
RatVOUT(Q)
Throughout guaranteed supply voltage range
(relative to VCC = 5 V)
–1.3
–
1.3
%
Ratiometry Sensitivity Error4
RatSens
Throughout guaranteed supply voltage range
(relative to VCC = 5 V), TA = 25°C and 150°C
–1.5
–
1.5
%
Throughout guaranteed supply voltage range
(relative to VCC = 5 V), TA = –40°C
–2
–
2
%
Sensitivity Drift Due to Package
Hysteresis
SensPKG
TA = 25°C, after temperature cycling
–
±2
–
%
11 G (gauss) = 0.1 mT (millitesla).
2See Characteristic Definitions section.
3fC varies up to approximately ±20% over the full operating ambient temperature range and process.
4Percent change from actual value at VCC = 5 V, for a given temperature.
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