ADC08032CIWM datasheet(4/24 Pages) NSC

4 / 24 page

Electrical Characteristics (Continued)

The following specifications apply for V

CC =VREF =+5 VDC, and fCLK = 1 MHz unless otherwise specified. Boldface limits

apply for T

A =TJ =TMIN to TMAX; all other limits TA =TJ = 25˚C.

Symbol

Parameter

Conditions

Typical

Limits

Units

(Note 8)

(Note 9)

(Limits)

DIGITAL AND DC CHARACTERISTICS

OUT

TRI-STATE® Output Current

OUT =0V

−3.0

µA (max)

OUT =5V

3.0

µA (max)

SOURCE

Output Source Current

OUT =0V

−6.5

mA (min)

SINK

Output Sink Current

OUT =VCC

8.0

mA (min)

Supply Current

ADC08031, ADC08034,

CS = HIGH

3.0

mA (max)

and ADC08038

ADC08032 (Note 16)

7.0

mA (max)

REFERENCE CHARACTERISTICS

REFOUT

Nominal Reference Output

REFOUT Option

Available Only on

2.6

ADC08034 and

ADC08038

Electrical Characteristics

The following specifications apply for V

CC =VREF =+5 VDC, and tr =tf = 20 ns unless otherwise specified. Boldface limits

apply for T

A =TJ =TMIN to TMAX; all other limits TA =TJ = 25˚C.

Symbol

Parameter

Conditions

Typical

Limits

Units

(Note 8)

(Note 9)

(Limits)

CLK

Clock Frequency

kHz (min)

MHz (max)

Clock Duty Cycle

% (min)

(Note 14)

% (max)

Conversion Time (Not Including

CLK = 1 MHz

1/f

CLK (max)

MUX Addressing Time)

µs (max)

Acquisition Time

⁄2

1/f

CLK(max)

SELECT

CLK High while CS is High

SET-UP

CS Falling Edge or Data Input

ns (min)

Valid to CLK Rising Edge

HOLD

Data Input Valid after CLK

ns (min)

Rising Edge

pd1,tpd0

CLK Falling Edge to Output

L = 100 pF:

Data Valid (Note 15)

Data MSB First

250

ns (max)

Data LSB First

200

ns (max)

1H,t0H

TRI-STATE Delay from Rising Edge

L = 10 pF, RL =10 kΩ

of CS to Data Output and SARS Hi-Z

(see TRI-STATE Test Circuits)

L = 100 pF, RL =2 kΩ

180

ns (max)

Capacitance of Logic Inputs

OUT

Capacitance of Logic Outputs

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.

Note 2: Operating Ratings indicate conditions for which the device is functional. These ratings do not guarantee specific performance limits. For guaranteed speci-

fications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance character-

istics may degrade when the device is not operated under the listed test conditions.

Note 3: All voltages are measured with respect to AGND = DGND = 0 VDC, unless otherwise specified.

Note 4: When the input voltage VIN at any pin exceeds the power supplies (VIN < (AGND or DGND) or VIN > VCC) the current at that pin should be limited to 5 mA.

The 20 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 four pins.

Note 5: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA and the ambient temperature, TA. The maximum

allowable power dissipation at any temperature is PD =(TJMAX −TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. For these de-

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