DC Electrical Characteristics

The following specifications apply for V

Symbol

Parameter

Conditions

MIn

Typ

Max

Units

CONTROL INPUTS [Note: CLK IN is the input of a Schmitt trigger circuit and is therefore specified separately]

V

Logical “1” Input Voltage

V

2.0

15

V

DC

(Except CLK IN)

V

Logical “0” Input Voltage

V

0.8

V

DC

(Except CLK IN)

I

Logical “1” Input Current

V

0.005

1

µA

DC

(All Inputs)

I

Logical “0” input Current

V

−1

−0.005

µA

DC

(All Inputs)

CLOCK IN

V

CLK IN Positive Going

2.7

3.1

3.5

V

DC

Threshold Voltage

V

CLK IN Negative Going

1.5

1.8

2.1

V

DC

Threshold Voltage

V

H

CLK IN Hysteresis

0.6

1.3

2.0

V

DC

(V

OUTPUTS AND INTR

V

Logical “0” Output Voltage

I

0.4

V

DC

V

Logical “1” Output Voltage

I

2.4

V

DC

I

4.5

V

DC

I

OUT

TRI-STATE Disabled Output

V

0.1

−100

µA

DC

Leakage (All Data Buffers)

V

0.1

3

µA

DC

I

SOURCE

V

4.5

6

mA

DC

I

SINK

V

9.0

16

mA

DC

POWER SUPPLY

I

CC

Supply Current (Includes

f

Ladder Current)

V

and CS =1

2.5

5.0

mA

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating

the device beyond its specified operating conditions.

Note 2: All voltages are measured with respect to GND, unless otherwise specified. The separate A GND point should always be wired to the D GND.

level analog inputs (5V) can cause this input diode to conduct — especially at elevated temperatures, and cause errors for analog inputs near fullscale. The spec al-

tolerance and loading.

Note 5: With an asynchronous start pulse, up to 8 clock periods may be required before the internal clock phases are proper to start the conversion process. The

start request is internally latched, see

Figure 3 .

Note 6: The CS input is assumed to bracket the WR strobe input and therefore timing is dependent on the WR pulse width. An arbitrarily wide pulse width will hold

the converter in a reset mode and the start of conversion is initiated by the low to high transition of the WR pulse (see Timing Diagrams).

of these two equal resistors.

Note 10: Human body model, 100 pF discharged through a 1.5 k

Ω resistor.

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