a1321elh Allegro MicroSystems, Inc., a1321elh Datasheet - Page 4

• Manufacturer Part Number: a1321elh
• Description: Ratiometric Linear Hall Effect Sensor For High-temperature Operation
• Manufacturer: Allegro MicroSystems, Inc.

A1321-DS Rev. 3
MAGNETIC CHARACTERISTICS
Sensitivity
Delta V
tion of temperature
Ratiometry, V
Ratiometry, Sens
Positive Linearity
Negative Linearity
Symmetry
UA Package
Delta Sens at T
Delta Sens at T
Sensitivity Drift
LH Package
Delta Sens at T
Delta Sens at T
Sensitivity Drift
1
2
3
manufacturing and application conditions. Performance may vary for individual units, within the specifi ed maximum and minimum limits.
In addition, the typical values vary with gain.
4
5
6
Additional information on chracteristics is provided in the section Characteristics Defi nitions, on the next page.
Negative current is defi ned as conventional current coming out of (sourced from) the specifi ed device terminal.
Typical data is at T
After 150ºC pre-bake and factory programming.
10 G = 1 millitesla.
Sensitivity drift is the amount of recovery with time.
Characteristics
out(q)
5
as a func-
Ratiometric Linear Hall Effect Sensor for High-Temperature Operation
out(q)
6
6
A
A
A
A
= max
= min
= max
= min
A
= 25°C, except for ûSens, and at x.x Sens. Typical data are for initial design estimations only, and assume optimum
5
5
5
5
ûSens
ûSens
ûSens
ûSens
ûSens
V
V
Symbol
Sens
Sens
out(q)(ûT)
out(q)(ûV)
Sens
Sym
Lin+
Lin–
(TAmax)
(TAmax)
(TAmin)
(TAmin)
Drift
Drift
(ûV)
1,2
over operating temperature range, T
A1321; T
A1322; T
A1323; T
Defi ned in terms of magnetic fl ux density, B
From hot to room temperature
From cold to room temperature
T
From hot to room temperature
From cold to room temperature
T
A
A
= 25°C; after temperature cycling and over time
= 25°C; after temperature cycling and over time
A1321/A1322/A1323
A
A
A
= 25ºC
= 25ºC
= 25ºC
Test Condition
A
; V
CC
= 5 V, I
out
= –1 mA; unless otherwise noted
4.750
2.969
2.375
–2.5
–3.5
Min
–6
–5
–
–
–
–
–
–
–
–
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
5.000
3.125
2.500
0.328
Typ
–
–
–
–
–
–
1
–
–
–
–
3
5.250
3.281
2.625
Max
±1.5
±1.5
±1.5
±1.5
±1.5
±10
7.5
8.5
4
2
5
2
Units
mV/G
mV/G
mV/G
%
%
%
%
%
%
%
%
%
%
%
G
4
4