Datasheet > ADA4558

ADA4558

更新时间： 2022-06-24 15:43:28

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	385K
描述
Bridge Sensor Signal Conditioner IC with LIN Interface, Nonlinearity Correction, Temperature Compensation

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ADA4558 数据手册

Data Sheet

ADA4558

SPECIFICATIONS

Supply voltage (VDD12) = 12 V, common-mode voltage (V_CM) = 2 V, and T_A= 25°C, unless otherwise specified. Minimum and maximum

values are specified over the full supply voltage and a temperature range of −40°C to +150°C.

Table 1.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

POWER SUPPLY (SYSTEM)

Supply Voltage

VDD12

Operating Range¹

VDD12_{, LOAD DUMP}

VDD12_{, JUMP START}

V_UVLO

Load dump for 0.3 sec

Jump start for 60 sec

Undervoltage Lockout (UVLO)

Rising

Hysteresis

5.1

0.2

5.0

Supply Current

I_SY

Normal operation, VREG current (I_VREG), LIN

current (I_LIN) = 0 mA, T_A= −40°C to +85°C

Normal operation, I_VREG, I_LIN= 0 mA, T_A=

−40°C to +150°C

8.2

Sleep Mode Current

VREG Output

VREG Temperature Coefficient²

DVDD Regulated Voltage

SYSTEM SPECIFICATIONS

Full-Scale Accuracy with Calibration

Enabled with inactivity on the LIN bus

150

4.0

µA

ppm/°C

V_REG

3.8

1.6

4.2

2.0

DV_DD

1.8

Sensor characteristic dependent

PGA gain = 2.94 V/V to 162.52 V/V

PGA gain = 224.72 V/V to 971.10 V/V

0.1

0.25

% FSR

INPUT STAGE

PGA Gain Setting

Common-Mode Input Voltage Range

Bridge Resistance

2.94

971.10 V/V

% V_REG

kΩ

R_BR

Input Electromagnetic Interference

(EMI) Filter³

Cutoff Frequency (f_{−3 dB}

Differential

f_{−3 dB}Common Mode

)

0.55

0.58

MHz

Input Offset

Voltage⁴

Voltage Drift

Maximum Input Capacitance

COARSE OFFSET⁵

Bridge Offset Cancellation Range

Offset Trim

V_OS

T_CV_OS

µV

nV/°C

VPOS/VNEG nodes

At PGA input

mV/V

Resolution

PGA gain = 2.94

PGA gain = 971.10

At PGA output

Bits

Step Size

COARSE GAIN

Gain Setting Accuracy

Gain = 2.94 to 162.52

Gain = 224.72 to 971.10

Gain ≤ 573.0

Gain = 722.3

Gain = 971.10

−1.2

−2.75

0.2

+1.2

+2.75

121

Gain Error Temperature Coefficient

ppm/°C

ADC PERFORMANCE

Main ADC Resolution

Bits

ADC Integral Nonlinearity (INL)

ADC Differential Nonlinearity (DNL)

−4

−1

LSB₁₄

Rev. 0 | Page 3 of 12

1 234 5 6 7...12

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