AS3715 datasheet(74/159 Pages) AMSOSRAM

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ams Datasheet

Page 73

[v1-03] 2015-Aug-10

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AS3715 − Detailed Description – System Functions

Parameter

Figure 74:

ADC Characteristics

ADC Characteristic: Shows the key electrical parameter of the internal ADC.

Figure 75:

ADC Timing Diagram

ADC Timing Diagram: Shows timing of the control and data signals of the internal ADC.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Resolution

Bit

Vin

Input Voltage Range

For 1:1 mode

1.8

DNL

Differential Nonlinearity

1LSB 1.56mV for 1:1

(depending on selected

channel)

± 0.25

LSB

INL

Integral Nonlinearity

± 0.5

LSB

Vos

Input Offset Voltage

LSB

Rin

Input Impedance

1:1

100

MΩ

4:1

200

kΩ

Cin

Input Capacitance

Idd

Power Supply Current

During conversion only

500

μA

Idd

Power Down Current

100

Transient Parameters (25°C)

Conversion Time

μs

Clock Frequency

Internal CLK frequency/8

fclk_int/8

kHz

Settling time of S&H

μs

start_conversion

ADC clock

ADC on

ADC start

16us if adc_presample = 0

else 96us

result_not_ready

D[9:0]

result ready

result not valid

ADC eoc

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