Data Sheet

ADA4558

Rev. 0 | Page 3 of 12

SPECIFICATIONS

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

6

12

18

V

Operating Range1

Load dump for 0.3 sec

27

V

Jump start for 60 sec

26

V

Undervoltage Lockout (UVLO)

Rising

5.1

V

Hysteresis

0.2

V

Supply Current

5.0

7

mA

−40°C to +150°C

8.2

mA

Sleep Mode Current

Enabled with inactivity on the LIN bus

150

µA

VREG Output

3.8

4.0

4.2

V

VREG Temperature Coefficient2

95

ppm/°C

DVDD Regulated Voltage

1.6

1.8

2.0

V

SYSTEM SPECIFICATIONS

Full-Scale Accuracy with Calibration

Sensor characteristic dependent

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

0.1

% FSR

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

0.25

% FSR

INPUT STAGE

PGA Gain Setting

2.94

971.10

V/V

Common-Mode Input Voltage Range

34

65

Bridge Resistance

2

20

kΩ

Input Electromagnetic Interference

(EMI) Filter3

Differential

0.55

MHz

0.58

MHz

Input Offset

Voltage4

5

20

µV

Voltage Drift

10

nV/°C

Maximum Input Capacitance

VPOS/VNEG nodes

15

nF

COARSE OFFSET5

Bridge Offset Cancellation Range

At PGA input

±60

mV/V

Offset Trim

Resolution

PGA gain = 2.94

6

Bits

PGA gain = 971.10

14

Bits

Step Size

At PGA output

31

mV

COARSE GAIN

Gain Setting Accuracy

Gain = 2.94 to 162.52

−1.2

±0.2

+1.2

%

Gain = 224.72 to 971.10

−2.75

±1

+2.75

%

Gain Error Temperature Coefficient

Gain ≤ 573.0

50

ppm/°C

Gain = 722.3

64

ppm/°C

Gain = 971.10

121

ppm/°C

ADC PERFORMANCE

Main ADC Resolution

14

Bits

ADC Integral Nonlinearity (INL)

−4

+4

ADC Differential Nonlinearity (DNL)

−1

+1