AGND

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I/O

ADC12DC105

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SNAS469B – SEPTEMBER 2008 – REVISED MARCH 2013

Operating Ratings

(1) (2)

Operating Temperature

+2.7V to +3.6V

(DCS Enabled)

30/70 %

Clock Duty Cycle

(DCS Disabled)

45/55 %

1.4V to 1.6V

|AGND-DRGND|

≤100mV

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is specified to be functional, but do not ensure specific performance limits. For ensured specifications and test

conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance

characteristics may degrade when the device is not operated under the listed test conditions. Operation of the device beyond the

maximum Operating Ratings is not recommended.

(2)

All voltages are measured with respect to GND = AGND = DRGND = 0V, unless otherwise specified.

Converter Electrical Characteristics

(1) (2) (3)

Units

Parameter

Test Conditions

Limits

(Limits)

STATIC CONVERTER CHARACTERISTICS

Resolution with No Missing Codes

12

Bits (min)

1.1

LSB (max)

INL

±0.5

-1.1

LSB (min)

0.55

LSB (max)

DNL

Differential Non Linearity

±0.2

-0.55

LSB (min)

PGE

Positive Gain Error

-0.1

±1

%FS (max)

NGE

Negative Gain Error

0.18

±1

%FS (max)

TC PGE

Positive Gain Error Tempco

-3

ppm/°C

TC NGE

Negative Gain Error Tempco

-7

ppm/°C

Offset Error

0.01

±0.55

%FS (max)

Offset Error Tempco

-4

ppm/°C

Under Range Output Code

0

0

Over Range Output Code

4095

4095

(1)

current is limited. However, errors in the A/D conversion can occur if the input goes above 2.6V or below GND as described in the

Operating Ratings section.

(2)

(3)

limited to ±5 mA. The ±50 mA maximum package input current rating limits the number of pins that can safely exceed the power

supplies with an input current of ±5 mA to 10.

(4)

specifications are not ensured.

(5)

Integral Non Linearity is defined as the deviation of the analog value, expressed in LSBs, from the straight line that passes through

positive and negative full-scale.

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