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A1381 Datasheet, PDF (3/19 Pages) Allegro MicroSystems – Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package
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A1381, A1382,
Programmable Linear Hall Effect Sensor ICs with Analog Output
A1383, and A1384
Available in a Miniature Thin Profile Surface Mount Package
OPERATING CHARACTERISTICS, valid over full operating temperature range, TA; CBYPASS= 0.1 μF, VCC = 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min. Typ. Max. Units
ELECTRICAL CHARACTERISTICS
Supply Voltage
Supply Current
Power-On Time1
Delay to Clamp1
Supply Zener Clamp Voltage
VCC
4.5
5.0
5.5
V
ICC
No load on VOUT
–
6.9
8
mA
A1381
TA = 25 °C, CBYPASS = open,
CL (of test probe) = 10 pF, Sens = 7.5 mV/G
–
32
–
μs
tPO
A1382
A1383
TA = 25 °C, CBYPASS = open,
CL (of test probe) = 10 pF, Sens = 5.0 mV/G
–
TA = 25 °C, CBYPASS = open,
CL (of test probe) = 10 pF, Sens = 3.125 mV/G
–
27
23
–
μs
–
μs
A1384
TA = 25 °C, CBYPASS = open,
CL (of test probe) = 10 pF, Sens = 2.5 mV/G
–
19
–
μs
tCLP
TA = 25°C, CL = 10 nF
–
30
–
μs
VZ
TA = 25°C, ICC = 11 mA
6
8.3
–
V
A1381
–
12
–
kHz
Internal Bandwidth
A1382
BWi
Small signal –3 dB
A1383
–
17
–
kHz
–
21
–
kHz
A1384
–
27
–
kHz
Chopping Frequency2
OUTPUT CHARACTERISTICS
fC
TA = 25°C
–
170
–
kHz
A1381
TA=25°C; CL = 10 nF,
Sens = 7.5 mV/G; no external filter
–
34
–
mV
A1382
TA=25°C; CL = 10 nF,
Sens = 5.0 mV/G; no external filter
–
27
–
mV
Noise (peak to peak)
VN(p-p)
A1383
TA=25°C; CL = 10 nF,
Sens = 3.125 mV/G; no external filter
–
20
–
mV
A1384
TA=25°C; CL = 10 nF,
Sens = 2.5 mV/G; no external filter
–
18
–
mV
A138x
TA=25°C; Sens = 2.5 mV/G; external 2 kHz low
pass filter with R = 1.69 kΩ, C = 47 nF
–
4.7
–
mV
DC Output Resistance
Output Load Resistance
ROUT
RL
VOUT to VCC
VOUT to GND
–
<1
4.7
–
4.7
–
–
Ω
–
kΩ
–
kΩ
Output Load Capacitance
Phase Shift3
Output Voltage Clamp4
Output Slew Rate
CL
∆Φ
VCLP(HIGH)
VCLP(LOW)
SR
VOUT to GND
No load on VOUT, magnetic input signal frequency =
1 kHz, with 1 V(p-p) output signal
TA = 25°C, B = 600 G, Sens = 5.0 mV/G,
RL = 10 kΩ (VOUT to GND)
TA = 25°C, B = –600 G, Sens = 5.0 mV/G,
RL = 10 kΩ (VCC to VOUT)
CL = 10 nF
–
–
10
nF
–
3
–
deg.
4.35
4.5
4.65
V
0.40
0.55
0.70
V
–
175
–
V/ms
Continued on the next page...
Allegro MicroSystems, Inc.
3
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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