ZSSC4151AE2W Datasheet ZSSC4151AE2R, ZSSC4151AE2V, ZSSC4151AE2W | P4-P6

ZSSC4151 Datasheet

4

April 20, 2016

2.2. Operating Conditions

All voltages in this section are relative to VSSA.

Table 2.2 Operating Conditions

Note: See important notes at the end of the table.

No.

Parameter

Symbol

Conditions

Min

Typical

Max

Unit

2.2.1

Supply voltage

VDDE

To VSSE

4.5

5

5.5

V

VDDA

To VSSA

VDDE minus drop through

protection switch

(VDDE – 0.1)

VDDE

V

2.2.2

Junction temperature

T

TQE

Extended Temperature

Range (TQE)

-40

150

C

T

AMB_TQA

Advanced-Performance

Temperature Range (TQA)

-40

125

C

T

AMB_TQI

Best-Performance

Temperature Range (TQI)

-25

85

C

2.2.3

Bridge resistance

1), 2)

R

BR

2

10

k

R

BR_10-90

Output range 10-90%

1

15

k

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

2) R

BR

greater than the maximum limit results in higher noise.

ZSSC4151 Datasheet

5

April 20, 2016

2.3. Electrical Parameters

All parameter values in this section are valid under the operating conditions specified in section 2.2. All voltages

referenced to VSSA.

Note: All parameters measured/validated for r

ADC

= 14-bit; segmentation of 1

st

and 2

nd

ADC stage = 8/6;

f

OSC

= 8MHz; analog gain = ~100; T

AMB_TQE

(see specification 2.2.2).

Table 2.3 Electrical Parameters

Note: See important table notes at the end of the table (page 7).

No.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

2.3.1. Supply Current and System Operation Conditions

2.3.1.1

Supply current

1)

I

S

Oscillator adjusted

(typical f

OSC

= 8MHz).

5.5

7

mA

2.3.1.2

Sensor bridge supply

voltage

V

SENS

V

SENS

= V

TOP

- V

BOT

at R

BR

≥ 2k

0.9

1

VDDA

2.3.1.3

Oscillator frequency

2)

f

OSC

7.2

8

8.8

MHz

2.3.1.4

Oscillator frequency

temperature coefficient

TC

OSC

-200

200

ppm/K

2.3.2. Analog Front-End Characteristics

2.3.2.1

Input span

V

IN_SPAN

Analog gain = 1 to 200

1

800

mV/V

2.3.2.2

Common mode input range

V

IN_CM

Depends on gain adjustment

0.25

0.75

V

SENS

2.3.2.3

External capacitance at

input

C

IN_EXT

Capacitance at pins BR1P

and BR1N to VSSA

0

12

nF

2.3.2.4

Input leakage current

3)

I

IN_leak

-15

15

nA

2.3.3. Temperature Measurement

2.3.3.1

PTAT internal temperature

sensitivity

ST

TSI

Raw values, without

conditioning calculation

Analog gain setting= 6

20

LSB

14

/K

2.3.3.2

External temperature diode

channel gain

A

TSE_D

10

LSB

14

/mV

2.3.3.3

External temperature diode

bias current

I

TSE_D

10

20

40

A

2.3.3.4

External temperature diode

input range

3)

V

TSE_D

Relative to V

TOP

-1

-0.2

V

ZSSC4151 Datasheet

6

April 20, 2016

No.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

2.3.3.5

External RTD channel gain

A

TSE_RTD

10

LSB

/mV

2.3.3.6

External RTD input range

3)

V

TSE_RTD

Relative to VDDA

-2

-0.2

V

2.3.4. Sensor Diagnostics

2.3.4.1

Sensor connection loss

threshold

R

SCC_open

100

k

2.3.4.2

Sensor short threshold to

BOT or TOP pin

R

SCC_SH_BT

50



2.3.4.3

Sensor short threshold

between inputs

R

SCC_SH_IN

150



2.3.5. A2D Conversion

2.3.5.1

ADC resolution

3)

r

ADC

Selection: 12, 14, 16 or 18 bit

12

18

Bit

2.3.5.2

DNL

3)

DNL

ADC

Best fit; overall AFE;

V

ADC_IN

according to 2.3.6.4.

0.95

LSB

2.3.5.3

INL TQA temperature range

(specified in 2.2.2)

3)

INL

ADC_TQA

Best fit

4

LSB

2.3.5.4

INL TQE temperature range

(specified in 2.2.2)

INL

ADC_TQE

At 14-bit resolution

8

LSB

2.3.5.5

ADC input range

V

ADC_IN

0.1

0.9

V

SENS

2.3.6. DAC and Analog Output (AOUT Pin)

2.3.6.1

DAC resolution

r

DAC

Analog output

12

Bit

2.3.6.2

Output current sink/source

I

OUT

V

AOUT

: 5-95%, R

LOAD

≥ 5k

2.5

mA

V

AOUT

: 10-90%, R

LOAD

≥ 1k

5

mA

2.3.6.3

Short-circuit current

(AOUT

to VSSE or VDDE)

I

OUT_max

Short to VSSE or VDDE

-25

25

mA

2.3.6.4

Addressable output range

V

R_OUT

0.01

0.99

VDDE

2.3.6.5

Load capacitance

C

LOAD

Defined for best EMC

performance

4

10

150

nF

2.3.6.6

Output slew rate

SR

OUT

C

LOAD

< 50nF

0.1

V/µs

2.3.6.7

Clipping levels

LowLim

Configurable 8-bit value

stored in NVM

0

25

%VDDE

UppLim

Configurable 8-bit value

stored in NVM

75

100

%VDDE

2.3.6.8

Clipping adjustment step

0.1

%VDDE

2.3.6.9

Output resistance in

Diagnostic Mode

R

OUT_DIA

Diagnostic Range:

4% to 96%, R

LOAD

≥ 5k

8% to 92%, R

LOAD

≥ 1k

80



ZSSC4151AE2W

ZSSC4151AE2W

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