ADC10321 datasheet(6/16 Pages) NSC

6 / 16 page

Converter Electrical Characteristics (Continued)

The following specifications apply for V

A = +5.0VDC,VD = 5.0VDC,VD I/O = 5.0VDC,VREF+ = +3.5VDC,VREF− = +1.5VDC,

L = 20pF, fCLK = 20MHz, RS = 25Ω. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25˚C(Note 7)

Symbol

Parameter

Conditions

Typical

(Note 8)

Limits

(Note 9)

Units

Reference and Analog Input Characteristics

REF

Reference Ladder

Resistance

1000

850

1150

Ω(min)

Ω(max)

REF+

Positive Reference Voltage

3.5

4.0

V(max)

REF−

Negative Reference

Voltage

1.5

1.3

V(min)

REF+) −

REF −)

Total Reference Voltage

2.0

1.0

2.7

V(min)

V(max)

DC and Logic Electrical Characteristics

The following specifications apply for V

A = +5.0VDC,VD = +5.0VDC,VD I/O = 5.0VDC,VREF+ = +3.5VDC,VREF− = +1.5VDC,

L = 20 pF, fCLK = 20MHz, RS = 25Ω. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25˚C(Note 7)

Symbol

Parameter

Conditions

Typical

(Note 8)

Limits

(Note 9)

Units

CLK, OE, PD, Digital Input Characteristics

Logical

″1″ Input Voltage

D = 5.5V

2.0

V(min)

Logical

″0″ Input Voltage

D = 4.5V

1.0

V(max)

Logical

″1″ Input Current

IH = VD

µA

Logical

″0″ Input Current

IL = DGND

−10

µA

D00 - D13 Digital Output Characteristics

Logical

″1″ Output

Voltage

D I/O = + 4.5V, IOUT = −0.5mA

D I/O = + 2.7V, IOUT = −0.5mA

4.0

2.4

V(min)

Logical

″0″ Output

Voltage

D I/O = + 4.5V, IOUT = −1.6mA

D I/O = + 2.7V, IOUT = −1.6mA

0.4

V(max)

TRI-STATE Output

Current

OUT = DGND

OUT = VD

−10

µA

Output Short Circuit

Current

D I/O = 3V

±12

D I/O = 5V

±25

Power Supply Characteristics

Analog Supply Current

PD = LOW, Ref not included

PD = HIGH, Ref not included

14.5

0.5

mA(max)

D +

DI/O

Digital Supply Current

PD = LOW, Ref not included

PD = HIGH, Ref not included

0.2

mA(max)

Power Consumption

110

mW (max)

AC Electrical Characteristics

The following specifications apply for V

A = +5.0VDC,VD I/O = 5.0VDC,VREF+ = +3.5VDC,VREF− = +1.5VDC,fCLK = 20MHz,

rc = tfc = 5ns, RS = 25Ω.CL (data bus loading) = 20 pF, Boldface limits apply for TA = TMIN to TMAX: all other limits TA =

25˚C(Note 7)

Symbol

Parameter

Conditions

Typical

(Note 8)

Limits

(Note 9)

Units

(Limits)

CLK1

Maximum Clock Frequency

MHz(min)

CLK2

Minimum Clock Frequency

MHz(max)

Clock High Time

ns(min

Clock Low Time

ns(min)

Duty Cycle

%(min)

%(max)

Pipeliine Delay (Latency)

2.0

Clock Cycles

rc,tfc

Clock Input Rise and Fall Time

ns(max)

ADC10321 Datasheet(PDF) 6 Page - National Semiconductor (TI)

ADC10321 Datasheet(HTML) 6 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Datasheet Download

Link URL