ZSSC3281BC3R datasheet(13/107 Pages) RENESAS

13 / 107 page

ZSSC3281 Datasheet

Rev. 1.3 FW Ver. 1.4.0

Mar.13.24 R33DS0020ED0100

Page 13

Symbol

Parameter

Conditions

Minimum

Typical

Maximum

Units

Programmable-Gain Amplifier (PGA)

Gamp

Gain

120 steps

1.32

–

495

V/V

Gerr

Gain error

Referenced to nominal gain

Gain = 1.32…5

Gain = 6…125

Gain = 126…495

-2.5

-5

-10

2.5

GerrTemp

Gain error over-

temperature

Temperature compensated

sensors do not require

calibration over-temperature.

-0.2

0.2

VCMin

Supported input

common mode

0.2

0.5

0.7

VTOP

Vioffsc

Differential input

offset shift

Programmable in 30 steps

Gain1

≤ 223

Gain1 = 275

-28.1

-22.5

28.1

22.5

Sensor Signal Conditioning (SSC) Performance

fSSCout

Output (update) rate

• 3 measurements: signal+,

signal-, diagnosis

• r

ADC = 16bit

• SSC-corrected digital

output

–

1.3

–

kHz

• 3 measurements: signal+,

signal-, diagnosis

• r

ADC = 14bit

• SSC-corrected digital

output

–

2.245

–

kHz

• 2 measurements: signal+,

diagnosis

• r

ADC = 14bit

• SSC-corrected digital

output

–

3.36

–

kHz

tstepresp

Step response

• 3 measurements: signal+,

signal-, diagnosis

• r

ADC = 16bit

• SSC-corrected digital

output

1.38

• 3 measurements: signal+,

signal-, diagnosis

• r

ADC = 14bit

• SSC-corrected digital

output

0.84

Analog Inputs

VINP1, VINN1,

VINP2, VINN2,

Absolute sensor

input

Voltages at INPx and INNx pin;

resulting minimum/maximum

differential voltages:

-800mV < VINdiff < 800mV

0.2

–

1.2

VTEXT

External

temperature diode

or RTD input range

at T1, T2_G2, T3_G1 pin

(see Sensor Supply section of

this table and

ExtTempBrdgIBias for

available configuration

options)

0.3

–

1.2

RSENSOR

External sensor

(bridge) resistance

TOP = 1.65V

0.825

–

kΩ

2-wire Current Loop Mode

3.3

–

kΩ

|VDIFFin|

Differential input

signal range

Referenced to sensor supply

(VDDAint)

–

800

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