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Allegro MicroSystems

3507 Datasheet Preview

3507 Datasheet

LINEAR HALL-EFFECTSENSOR ICS

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3507 AND
3508
RATIOMETRIC, LINEAR HALL-EFFECT SENSOR ICS
FOR HIGH-TEMPERATURE OPERATION
The A3507– and A3508– are sensitive, temperature-stable linear
Hall-effect sensor ICs. Ratiometric, linear Hall-effect circuits 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 devices are ideal for use in linear and rotary
position sensing systems in the harsh environments of automotive and
UCT .VCC
OD LY1 2
3
ED PRNCE ONDwg.PH-006
U EPinning is shown viewed from branded side.
TIN ERABSOLUTE MAXIMUM RATINGS
N FSupply Voltage, VCC . . . . . . . . . . . . 6.0 V
O EOutput Voltage, VO . . . . . . . . . . . . . 6.0 V
Output Sink Current, IO . . . . . . . . 5.0 mA
C RMagnetic Flux Density, B . . . . Unlimited
Package Power Dissipation,
IS RPD. . . . . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range, TA
D OSuffix ‘S–’ . . . . . . . . . . . . -20°C to +85°C
FSuffix ‘E–’ . . . . . . . . . . . . -40°C to +85°C
Suffix ‘L–’ . . . . . . . . . . . -40°C to +150°C
Storage Temperature Range,
industrial applications over extended temperatures to -40°C and +150°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 ‘S–’ is for -20°C to +85°C, suffix
‘E–’ is for -40°C to +85°C, and suffix ‘L–’ is for -40°C to +150°C.
These devices are supplied in a 3-pin ultra-mini-SIP ‘–UA’ package.
FEATURES
Output Voltage Proportional to Applied Magnetic Field
Ratiometric Rail-to-Rail Output
Improved Sensitivity
Superior Temperature Stability
4.5 V to 5.5 V Operation
Small Package Size
Solid-State Reliability
TS . . . . . . . . . . . . . . . -65°C to +170°C
Always order by complete part number, e.g., A3507EUA .




Allegro MicroSystems

3507 Datasheet Preview

3507 Datasheet

LINEAR HALL-EFFECTSENSOR ICS

No Preview Available !

3507 AND 3508
RATIOMETRIC,
LINEAR HALL-EFFECT SENSOR ICS
FOR HIGH-TEMP. OPERATION
FUNCTIONAL BLOCK DIAGRAM
1 VCC
700
600 "U" PACKAGE
RθJA = 183°C/W
500
400
300
X 3 OUTPUT
"UA" PACKAGE
RθJA = 206°C/W
200
2 GROUND
Dwg. FH-011
100
0
20 40 60 80 100 120 140 160
AMBIENT TEMPERATURE in °C
Dwg. GH-046A
ELECTRICAL CHARACTERISTICS over operating temperature range, at VCC = 5 V (unless otherwise
noted).
Characteristic
Supply Voltage
Supply Current
Quiescent
Voltage Output
Output Voltage
Bandwidth (-3 dB)
Output Resistance
Wide-Band
Output Noise
Symbol
VCC
ICC
VOQ
VOH
VOL
BW
rO
eo
Test Conditions
Operating
B = 0, VCC = 5.5 V, IO = 0
B = 0, IO = 1 mA, TA = 25°C
B = 0, IO = 1 mA
B = +X*, IO = 1 mA
B = -X*, IO = -1 mA
B = 0, BW = 10 Hz to 10 kHz,
TA = 25°C
Min.
4.5
2.0
1.8
4.5
20
Limits
Typ. Max.
5.0 5.5
– 10
2.5 3.0
2.5 3.2
4.8 –
0.2 0.5
––
2.5 10
125 –
Units
V
mA
V
V
V
V
kHz
µV
Negative current is defined as coming out of (sourcing) the output.
* This test requires positive and negative fields sufficient to swing the output driver between fully OFF and saturated (ON), respec-
tively. It is NOT intended to indicate a range of linear operation.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1994, 2001, Allegro MicroSystems, Inc.


Part Number 3507
Description LINEAR HALL-EFFECTSENSOR ICS
Maker Allegro MicroSystems
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3507 Datasheet PDF






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