A1321 데이터 시트보기 (PDF) - Allegro MicroSystems

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A1321

Ratiometric Linear Hall Effect Sensor ICs for High-Temperature Operation

Allegro MicroSystems 

A1321, A1322,

and A1323

Ratiometric Linear Hall Effect Sensor ICs

for High-Temperature Operation

DEVICE CHARACTERISTICS1 over operating temperature (TA) range, unless otherwise noted

Characteristic

Symbol

Test Conditions

Min.

Typ.2

Max. Units

Electrical Characteristics; VCC = 5 V, unless otherwise noted

Supply Voltage

Vcc(op)

Operating; Tj < 165°C

Supply Current

Icc

B = 0, Iout = 0

Quiescent Voltage

Vout(q)

B = 0, TA = 25ºC, Iout = 1 mA

Output Voltage3

Vout(H)

Vout(L)

B = +X, Iout = –1 mA

B = –X, Iout = 1 mA

Output Source Current Limit3

Iout(LM)

B = –X, Vout → 0

Supply Zener Clamp Voltage

VZ

Icc = 11 mA = Icc(max) + 3

Output Bandwidth

BW

4.5

–

2.425

–

–

–1.0

6

–

5.0

5.5

V

5.6

8

mA

2.5

2.575

V

4.7

–

V

0.2

–

V

–1.5

–

mA

8.3

–

V

30

–

kHz

Clock Frequency

fC

–

150

–

kHz

Output Characteristics; over VCC range, unless otherwise noted

A1321; Cbypass = 0.1 μF, no load

–

–

40

mV

Noise, Peak-to-Peak4

VN

A1322; Cbypass = 0.1 μF, no load

–

–

25

mV

A1323; Cbypass = 0.1 μF, no load

–

–

20

mV

Output Resistance

Rout

Iout ≤ ±1 mA

–

1.5

3

Ω

Output Load Resistance

RL

Iout ≤ ±1 mA, VOUT to GND

4.7

–

–

kΩ

Output Load Capacitance

CL

VOUT to GND

–

–

10

nF

1 Negative current is defined as conventional current coming out of (sourced from) the specified device terminal.

2 Typical data is at TA = 25°C. They are for initial design estimations only, and assume optimum manufacturing and application

conditions. Performance may vary for individual units, within the specified maximum and minimum limits.

3 In these tests, the vector X is intended to represent positive and negative fields sufficient to swing the output driver between fully OFF

and saturated (ON), respectively. It is NOT intended to indicate a range of linear operation.

4 Noise specification includes both digital and analog noise.

Allegro MicroSystems, Inc.

4

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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