Parameter

Symbol

Conditions

Min

Typ

Max

Units

STATIC PERFORMANCE

Resolution

N

8

Bits

Total Unadjusted Error

TUE

±3

LSB

Relative Accuracy

INL

–1

+1

LSB

Differential Nonlinearity

DNL

–1

+1

LSB

Offset Error

°C

–4

+4

LSB

–6

+6

LSB

Full-Scale Error

–4

+4

LSB

–6

+6

LSB

∆Full-Scale/∆V

DD

°C

1

LSB

DYNAMIC PERFORMANCE

Signal-to-Noise Ratio

SNR

44

dB

Total Harmonic Distortion

THD

48

dB

Intermodulation Distortion

IMD

60

dB

Frequency Response

0 to 200 kHz

0.1

dB

Track/Hold Acquisition Time

200

ns

ANALOG INPUTS (Applies to Inputs A, B. C, D)

Unipolar Input Range

03

V

Input Current

–500

+500

µA

Input Capacitance

10

pF

LOGIC INPUTS

Clock Input Current Low

1.6

mA

Clock Input Current High

40

µA

Input Leakage Current

CS

, RD, RS, ST

10

µA

LOGIC OUTPUTS (Applies to Outputs DB0–DB7, INT, BUSY)

Logic Output Low Voltage

0.4

V

Logic Output High Voltage

4.0

V

Output Leakage Current

CS

= 1 (Except INT & BUSY)10

µA

Output Capacitance

CS

= 1 (Except INT & BUSY)10

pF

CONVERSION TIME

External Clock

2

µs

Specifications subject to change without notice.

REV. 0

–2–

AD8401–SPECIFICATIONS

ADC ELECTRICAL CHARACTERISTICS

A1

A0

Input Selected

00

01

10

11

Table I. Multiplexer Address Input Decode

unless otherwise noted)