3507
3508
AND
RATIOMETRIC, LINEAR HALL-EFFECT SENSORS
FOR HIGH-TEMPERATURE OPERATION
The A3507鈥?and A3508鈥?are sensitive, temperature-stable linear
Hall-effect sensors. Ratiometric, linear Hall-effect sensors provide a
voltage output that is proportional to the applied magnetic field and have
a quiescent output voltage that is approximately 50% of the supply
voltage. These magnetic sensors are ideal for use in linear and rotary
position sensing systems in the harsh environments of automotive and
industrial applications over extended temperatures to -40擄C and +150擄C.
The two devices are similar except for temperature stability over the
operating temperature range. See the Magnetic Characteristics table for
complete, individual device parametrics.
Each monolithic circuit integrates a quadratic Hall element, im-
proved temperature compensating circuitry to reduce the intrinsic
sensitivity drift of the Hall element, a small-signal high-gain amplifier,
and a rail-to-rail low-impedance output stage. Many problems normally
associated with low-level analog signals are minimized by having the
Hall element and amplifier in a single chip. Output precision is obtained
by internal gain and offset trim adjustments during the manufacturing
process.
The first character of the part number suffix determines the device
operating temperature range: suffix 鈥楽鈥撯€?is for -20
擄
C to +85
擄
C, suffix
鈥楨鈥撯€?is for -40
擄
C to +85
擄
C, and suffix 鈥楲鈥撯€?is for -40
擄
C to +150
擄
C.
These devices are supplied in a 3-pin ultra-mini-SIP 鈥樷€揢A鈥?package.
Data Sheet
27501.1B
V
CC
1
X
2
3
GROUND
Dwg. PH-006
Pinning is shown viewed from branded side.
OUTPUT
SUPPLY
FEATURES
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
. . . . . . . . . . . .
6.0 V
Output Voltage, V
O
. . . . . . . . . . . . .
6.0 V
Output Sink Current, I
O
. . . . . . . .
5.0 mA
Magnetic Flux Density, B . . . .
Unlimited
Package Power Dissipation,
P
D
. . . . . . . . . . . . . . . . . . . .
See Graph
Operating Temperature Range, T
A
Suffix 鈥楽鈥撯€?. . . . . . . . . . . .
-20
擄
C to +85
擄
C
Suffix 鈥楨鈥撯€?. . . . . . . . . . . .
-40
擄
C to +85
擄
C
Suffix 鈥楲鈥撯€?. . . . . . . . . . .
-40
擄
C to +150
擄
C
Storage Temperature Range,
T
S
. . . . . . . . . . . . . . .
-65
擄
C to +170
擄
C
I
Output Voltage Proportional to Applied Magnetic Field
I
Ratiometric Rail-to-Rail Output
I
Improved Sensitivity
I
Superior Temperature Stability
I
4.5 V to 5.5 V Operation
I
Small Package Size
I
Solid-State Reliability
Always order by complete part number, e.g.,
A3507EUA
.
ALLEGRO
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