16-Bit DACs with 32-Channel

Sample-and-Hold Outputs

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3

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DYNAMIC CHARACTERISTICS

Sample-and-Hold Settling

(Notes 4)

0.08

%

SCLK Feedthrough

0.5

nV-s

0.5

nV-s

Hold-Step

0.25

1mV

Droop Rate

40

mV/s

Output Noise

250

REFERENCE INPUT

Input Resistance

7k

Ω

Reference Input Voltage

2.5

V

GROUND SENSE INPUT

Input Voltage Range

-0.5

0.5

V

Input Bias Current

-0.5

-60

0

µA

GS Gain

(Note 6)

0.998

1

1.002

V/V

DIGITAL INTERFACE DC CHARACTERISTICS

Input High Voltage

2.0

V

Input Low Voltage

0.8

V

Input Current

±1µA

TIMING CHARACTERISTICS (FIGURE 2)

Sequencer Clock Frequency

Internal oscillator

80

100

120

kHz

External Clock Frequency

(Note 7)

440

kHz

SCLK Frequency

20

MHz

SCLK Pulse Width High

15

ns

SCLK Pulse Width Low

15

ns

CS Low to SCLK High Setup

Time

15

ns

CS High to SCLK High Setup

Time

15

ns

SCLK High to

CS Low Hold Time

10

ns