A1326LLHLT-T Allegro Microsystems Inc, A1326LLHLT-T Datasheet

Low Noise Linear Hall Effect W/Analog Output

A1326LLHLT-T

Manufacturer Part Number

A1326LLHLT-T

Description

Low Noise Linear Hall Effect W/Analog Output

Manufacturer

Allegro Microsystems Inc

Series

-r

Type

Linear - Ratiometricr

Datasheet

1.A1324LLHLT-T.pdf (11 pages)

Specifications of A1326LLHLT-T

Sensing Range

2.375mV/G ~ 2.625mV/G

Voltage - Supply

4.5 V ~ 5.5 V

Current - Supply

9mA

Current - Output (max)

10mA

Output Type

Digital, Open Drain

Features

High Accuracy

Operating Temperature

-40°C ~ 150°C

Package / Case

SOT-23W

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

A1326LLHLT-T

Manufacturer:

LITTLEFUSE

Quantity:

120

Current page: 1 of 11
Download datasheet (278Kb)

Features and Benefits

• Temperature-stable quiescent output voltage and sensitivity

• Output voltage proportional to magnetic flux density

• Low-noise output increases accuracy

• Precise recoverability after temperature cycling

• Ratiometric rail-to-rail output

• Wide ambient temperature range: –40°C to 150°C

• Immune to mechanical stress

• Solid-state reliability

• Enhanced EMC performance for stringent automotive

Packages

A1324-DS

applications

3-pin ultramini SIP

1.5 mm × 4 mm × 3 mm

(suffix UA)

Low Noise, Linear Hall Effect Sensor ICs with Analog Output

V+

Approximate footprint

3-pin SOT23-W

2 mm × 3 mm × 1 mm

(suffix LH)

GND

Functional Block Diagram

To All Subcircuits

Sensitivity and

Sensitivity TC

Description

New applications for linear output Hall-effect devices, such

as displacement, angular position, and current measurement,

require high accuracy in conjunction with small package size.

The Allegro

sensor ICs are designed specifically to achieve both goals. This

temperature-stable device is available in a miniature surface

mount package (SOT23W) and an ultra-mini through-hole

single in-line package.

These ratiometric Hall effect sensor ICs provide a voltage

output that is proportional to the applied magnetic field. They

feature a quiescent voltage output of 50% of the supply voltage.

The A1324/25/26 feature factory programmed sensitivities of

5.0 mV/G, 3.125 mV/G, and 2.5 mV/G, respectively.

The features of these linear devices make them ideal for use in

automotive and industrial applications requiring high accuracy,

and are guaranteed through an extended temperature range,

–40°C to 150°C.

Each BiCMOS monolithic circuit integrates a Hall element,

temperature-compensating 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.

These devices are available in a 3-pin ultra-mini SIP package

(UA), and a 3-pin surface mount SOT-23 style package (LH). Both

are lead (Pb) free, with 100% matte tin leadframe plating.

A1324, A1325, and A1326

Trim Control

Offset

A1324, A1325, and A1326 linear Hall-effect

VOUT

Related parts for A1326LLHLT-T

A1326LLHLT-T Summary of contents

Page 1

Low Noise, Linear Hall Effect Sensor ICs with Analog Output Features and Benefits • Temperature-stable quiescent output voltage and sensitivity • Output voltage proportional to magnetic flux density • Low-noise output increases accuracy • Precise recoverability after temperature cycling • ...

Page 2

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 Selection Guide 1 Part Number Packing A1324LLHLX-T 10 000 pieces per reel 2 A1324LUA-T 500 pieces per bag A1325LLHLX-T 10 000 pieces per reel A1325LUA-T 2 500 pieces ...

Page 3

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 OPERATING CHARACTERISTICS Characteristics Electrical Characteristics Supply Voltage Supply Current 2 Power-On Time Supply Zener Clamp Voltage Internal Bandwidth Chopping Frequency 3 Output Characteristics Quiescent Voltage Output Output Referred ...

Page 4

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 Power-On Time When the supply is ramped to its operating voltage, the device output requires a finite time to react to an input magnetic field. Power-On Time is ...

Page 5

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 T = 25°C, and Sens is the value of sensitivity (25°C)1 after temperature cycling 150°C, down to –40°C, and A back to ...

Page 6

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 Average Postive Linearity versus Ambient Temperature 105 104 103 102 101 100 – ...

Page 7

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 Average Absolute Quiescent Voltage Output versus Ambient Temperature 2.565 2.545 2.525 2.505 2.485 2.465 2.445 2.425 – (°C) A Average ...

Page 8

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 Chopper Stabilization Technique When using Hall-effect technology, a limiting factor for switchpoint accuracy is the small signal voltage developed across the Hall element. This voltage is disproportionally small ...

Page 9

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 +0.12 2.98 –0.08 D 1.49 3 +0.10 2.90 –0. 0.55 REF Branded Face 8X 10° REF 0.95 BSC For Reference Only; not for tooling use (reference ...

Page 10

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 45° 1.44 NOM +0.08 E 3.02 –0.05 14.99 ±0.25 +0.05 0.43 –0.07 Package UA, 3-Pin SIP +0.08 4.09 –0. 2.05 NOM 10° E Branded Face 0.79 ...

Page 11

A1324, A1325, Linear Hall Effect Sensor ICs with Analog Output and A1326 Revision History Revision Final Copyright ©2010-2011, Allegro MicroSystems, Inc. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from the detail ...

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