A1360_V Datasheet, PDF (1/26 Pages) Allegro MicroSystems – Low-Noise Programmable Linear Hall Effect Sensor ICs with Adjustable Bandwidth (50 kHz Maximum) and Analog Output

A1360, A1361, and A1362
Low-Noise Programmable Linear Hall Effect Sensor ICs with
Adjustable Bandwidth (50 kHz Maximum) and Analog Output
Features and Benefits
•1 mm case thickness provides greater coupling for current
sensing applications
•Customer programmable offset and sensitivity
•Factory programmed 0% / °C sensitivity temperature coefficient
•Programmability at end-of-line
•Selectable unipolar or bipolar quiescent voltage levels
•Selectable sensitivity ranges between 0.7 and 1.4 mV/G (A1360),
1.4 to 4.5 mV/G (A1361) and 4.5 to 16 mV/G (A1362)
•Device bandwidth selectable under 50 kHz, via capacitor on
FILTER pin
•Ratiometric sensitivity, quiescent voltage output, and clamps for
interfacing with application DAC
•Temperature-stable quiescent voltage output and sensitivity
•Precise recoverability after temperature cycling
•Output voltage clamps provide short circuit diagnostic capabilities
•Wide ambient temperature range: – 40°C to 150°C
•Resistant to mechanical stress
Package: 4 pin SIP (suffix KT)
1 mm case thickness
Not to scale
Description
New applications for linear output Hall effect sensing, such
as current measurement, require both high accuracy and
increased sensor bandwidth. The Allegro^™ A1360, A1361,
and A1362 programmable linear Hall effect sensor ICs are
designed specifically to achieve both goals. Available in a
through-hole SIP (single in-line package), the A136x Hall
effect sensor ICs are sensitive and temperature-stable. The
accuracy of these devices is enhanced via programmability on
the device VOUT pin. A capacitor to ground on the FILTER
pin on the A136x can be used to tune the device bandwidth in
a range less than 50 kHz.
These ratiometric Hall effect sensor ICs provide a voltage
output that is proportional to the applied magnetic field. The
quiescent output voltage is user-adjustable around either
50% (bidirectional configuration) or 10% (unidirectional
configuration) of the supply voltage, V_CC. The device sensitivity
is adjustable within three guaranteed ranges: 0.7 to 1.4 mV/G
(A1360), 1.4 to 4.5 mV/G (A1361), and 4.5 to 16 mV/G
(A1362).
Each BiCMOS monolithic circuit integrates a Hall element,
temperature-compensation circuitry to reduce the intrinsic
sensitivity drift of the Hall element, a small-signal high-gain
amplifier, a clamped low-impedance output stage, and a
proprietary dynamic offset cancellation technique.
Continued on the next page…
V+
VCC
Ratiometric
Hall Drive
C._BYPASS
Functional Block Diagram
Sensitivity
Program/Lock
Trim Control
Sensitivity
Temperature
Coefficient
Offset
To subcircuits
+
+
Signal Recovery
–
–
FILTER
VOUT
(Programming)
GND
A1360-DS, Rev. 3