ZSSC3131BA2T Datasheet ZSSC3131BA2R, ZSSC3131BE2T, ZSSC3131BE2R | P4-P6

ZSSC3131

Datasheet

January 25, 2016

List of Figures

Figure 2.1 Block Diagram of the ZSSC3131 ................................................................................................... 10

Figure 2.2 Measurement Cycle with 1 Bridge Sensor Signal Measurement per Special Measurement ........ 12

Figure 3.1 Application with On-Chip Diode Temperature Sensor ................................................................... 17

Figure 4.1 ZSSC3131 SSOP14 Pin Diagram ................................................................................................. 18

List of Tables

Table 1.1 Absolute Maximum Ratings ............................................................................................................. 5

Table 1.2 Operating Conditions ....................................................................................................................... 5

Table 1.3 Electrical Parameters ....................................................................................................................... 6

Table 1.4 Interface Characteristics and EEPROM .......................................................................................... 9

Table 2.1 Adjustable Gains, Resulting Sensor Signal Spans and Common Mode Ranges ......................... 11

Table 2.2 ADC Resolution versus Output Resolution and Sample Rate ....................................................... 14

Table 3.1 External Components for Application Circuit Examples ................................................................ 17

Table 4.1 Pin Configuration and Definition .................................................................................................... 18

ZSSC3131

Datasheet

January 25, 2016

1 Electrical Characteristics

1.1. Absolute Maximum Ratings

Note: The absolute maximum ratings are stress ratings only. The device might not function or be operable above

the operating conditions given in section 1.2. Stresses exceeding the absolute maximum ratings might also

damage the device. In addition, extended exposure to stresses above the recommended operating conditions

might affect device reliability. IDT does not recommend designing to the “Absolute Maximum Ratings.”

Parameters apply in operation temperature range and without time limitations.

Table 1.1 Absolute Maximum Ratings

No. Parameter Symbol Conditions Min Max Unit

1.1.1 Supply voltage

VDDE

AMR

To VSSE, refer to

section 3 for application

circuits

-33 33 VDC

1.1.2 Potential at AOUT pin

OUT

Referenced to VSSE -33 33 VDC

1.1.3 Analog supply voltage

VDDA

AMR

Referenced to VSSA,

VDDE - VDDA < 0.35V

-0.3 6.5 VDC

1.1.4 Voltage at all analog and

digital IO pins

A_IO

D_IO

Referenced to VSSA -0.3 VDDA + 0.3 VDC

1.1.5 Storage temperature T

STG

-55 150

°C

1) Refer to the ZSSC313x High Voltage Protection Description for specification and detailed conditions.

1.2. Operating Conditions

All voltages are referenced to VSSA.

Table 1.2 Operating Conditions

No. Parameter Symbol Conditions Min Typ Max Unit

1.2.1 Ambient temperature

1) 2)

AMB_TQE

Extended Temperature

Range (TQE)

-40 150

°C

AMB_TQA

Advanced-Performance

Temperature Range

(TQA)

-40 125

°C

AMB_TQI

Best-Performance

Temperature Range (TQI)

-25 85

°C

1.2.2 Supply voltage VDDE 4.5 5.0 5.5 VDC

1.2.3 Bridge resistance

3) 4)

2 25

kΩ

1) Maximum operation temperature range depends on product version (refer to section 8).

2) See the temperature profile description in the ZSSC313x Technical Note—Die & Package Dimensions.

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

4) Symmetric behavior and identical electrical properties (especially the low pass characteristic) of both sensor inputs of the ZSSC3131 are required.

Unsymmetrical conditions of the sensor and/or external components connected to the sensor input pins of the ZSSC3131 can generate a failure in

signal operation.

ZSSC3131

Datasheet

January 25, 2016

1.3. Electrical Parameters

All parameter values are valid under the operating conditions specified in section 1.2 (special definitions

excluded). All voltages referenced to VSSA.

Note: See important notes at the end of Table 1.3.

Table 1.3 Electrical Parameters

No. Parameter Symbol Conditions Min Typ Max Unit

1.3.1. Supply Current and System Operation Conditions

1.3.1.1 Supply current I

Without bridge and load

current, f

OSC

≤ 3 MHz

5.5 mA

1.3.1.2 Oscillator frequency

OSC

Adjustment guaranteed for

full temperature range

AMB_TQE)

2 3 4 MHz

1.3.2. Analog Front-End (AFE) Characteristics

1.3.2.1 Input span V

IN_SP

Analog gain: 105 to 2.8 8 275 mV/V

1.3.2.2 Parasitic differential input

offset current

IN_OFF

Temperature range

AMB_TQE

-10 10 nA

Temperature range

AMB_TQI

-2 2 nA

1.3.2.3 Common mode

input range

IN_CM

Depends on gain adjust-

ment; see section 2.3.1

0.29 0.65 VDDA

1.3.3. Temperature Measurement

(Refer to section 2.4.)

1.3.3.1 Internal temperature diode

sensitivity

TSI

Raw values,

without conditioning

700 2700 ppm FS

/ K

1.3.4. A/D Conversion

1.3.4.1 A/D resolution

ADC

13 14 Bit

1.3.4.2 DNL

DNL

ADC

=13bit, f

OSC

=3MHz,

best fit, complete AFE,

range according to 1.3.4.5

0.95 LSB

1.3.4.3 INL TQA INL

ADC

=13bit, f

OSC

=3MHz,

best fit, complete AFE,

range according to 1.3.4.5

4 LSB

1.3.4.4 INL TQE INL

ADC_TQE

ADC

=13bit, f

OSC

=3MHz,

best fit, complete AFE,

range according to 1.3.4.5,

temperature range T

AMB_TQE

5 LSB

1.3.4.5 ADC input range V

ADC_IN

0.1 0.9 VDDA

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P23

ZSSC3131BA2T

Mfr. #:

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ZSSC3131BA2T

ZSSC3131BA2T

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