ZSC31150

Fast Automotive Sensor Signal Conditioner

Data Sheet

August 31, 2010

© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.07

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without

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notice.

8 of 24

No.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

1.3.5. Sensor Connection Check

1.3.5.1

Sensor connection loss

RSCC_min

detection threshold

100

k



1.3.5.2

Sensor input short

RSSC_short

short detection

guaranteed

0

50



1.3.5.3

Sensor input no short

RSSC_pass

short is never detected

1000



1.3.6. DAC & Analog Output (Pin AOUT)

1.3.6.1

D/A Resolution

rDAC

analog output, 10-90%

12

Bit

1.3.6.2

Output current sink and

source for VDDE=5V

ISRC/SINK_OUT

VOUT: 5-95%,

RLOAD>=2kΩ

VOUT: 10-90%,

RLOAD>=1kΩ

2.5

5

mA

1.3.6.3

Short circuit current

IOUT_max

to VSSE/VDDE

1

-25

25

mA

1.3.6.4

Addressable output signal

range

VSR_OUT95

VSR_OUT90

@ RLOAD>=2k

@ RLOAD>=1k

0.05

0.1

0.95

0.9

VDDE

1.3.6.5

Output slew rate

2

SROUT

CLOAD < 50nF

0.1

V/µs

1.3.6.6

Output resistance in

diagnostic mode

ROUT_DIA

Diagnostic Range:

<4|96>%, RLOAD>=2k

<8|92>%, RLOAD>=1k

82



1.3.6.7

Load capacitance

2

CLOAD

C3 + CL (refer chapter 3)

150

nF

1.3.6.8

DNL

DNLOUT

-1.5

1.5

LSB

1.3.6.9

INL TQA

2

INLOUT

best fit, rDAC =12Bit

-5

5

LSB

1.3.6.10

INL TQE

INLOUT

best fit, rDAC =12Bit

-8

8

LSB

1.3.6.11 Output Leakage current @

150grd

ILEAK_OUT

in case of power or

ground loss

-25

25

µA

1.3.7. System Response

1.3.7.1

Startup time

3

tSTA

to 1st output, fCLK=3MHz,

no ROM check, ADC:

14bit & 2nd order

5

ms

1.3.7.2

Response time

(100% jump)

2

tRESP

fCLK=4MHz, 13Bit, 2nd

order, refer Table 2.3

256

512

µs

1.3.7.3

Bandwidth

2

comparable to analog

SSCs

5

kHz

1.3.7.4

Analog Output Noise

Peak-to-Peak

2

VNOISE,PP

shorted inputs, gain=

bandwidth

 10kHz

10

mV

1.3.7.5

Analog Output Noise

RMS

2

VNOISE,RMS

shorted inputs, gain=

bandwidth

 10kHz

3

mV

1

minimum output voltage to VDDE or maximum output voltage to VSSE

2

No measurement in mass production, parameter is guaranteed by design and/or quality observation.

3

Depends on resolution and configuration - start routine begins approximately 0.8ms after power on