ZSSC3138 Datasheet

© 2016 Integrated Device Technology, Inc.

16

January 25, 2016

Table 2.3

ADC Resolution versus Output Resolution and Sample Rate

ADC Adjustment

Output Resolution

1)

Sample Rate

2)

Averaged Bandwidth

2)

ADC

Sample

Rate Mode

[bit]

Digital

[bit]

Analog

[bit]

[Hz]

[Hz]

[Hz]

[Hz]

Normal

13

13

12

345

460

130

172

14

14

12

178

237

67

89

15

14

12

90

120

34

45

16

14

12

45

61

17

23

High

13

13

12

5859

7813

2203

2937

14

14

12

3906

5208

1469

1958

15

14

12

2930

3906

1101

1468

16

14

12

1953

2604

734

979

1)

Output resolution does not exceed ADC resolution. PGA gain should be such that the differential ADC input signal uses at least 50% of ADC input

range to ensure maximum achievable output resolution.

2)

Refer to the ZSSC313x Bandwidth Calculation Sheet for a detailed calculation of sampling time and bandwidth.

2.4.

Temperature Measurement

The ZSSC3138 supports acquiring temperature data needed for conditioning of the sensor signal using an

internal pn-junction temperature sensor.

Refer to the ZSSC313x Functional Description for a detailed explanation of temperature sensor adaptation and

adjustment.

2.5.

System Control and Conditioning Calculation

The system control supports the following tasks/features:

EEPROM-stored conditioning coefficients and the ROM-based formulas)

2.5.1.

General Working Modes

ZSSC3138 supports three different working modes: