Low-Power, 16-Bit Analog-to-Digital Converter

with Parallel Interface

_______________________________________________________________________________________

3

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Signal-to-Noise Ratio

SNR

87

90

dB

Total Harmonic Distortion

THD

-102

-90

dB

Spurious-Free Dynamic Range

SFDR

91

105

dB

Full-Power Bandwidth

-3dB point

4

MHz

Full-Linear Bandwidth

SINAD > 81dB

33

kHz

CONVERSION RATE

Sample Rate

165

ksps

Aperture Delay

27

ns

Aperture Jitter

<100

ps

ANALOG INPUT

Input Range

V

Input Capacitance

40

pF

INTERNAL REFERENCE

REF Output Voltage

4.054

4.096

4.136

V

REF Output Tempco

±25

ppm/°C

REF Short-Circuit Current

±10

mA

Capacitive Bypass at REFADJ

0.1

µF

Capacitive Bypass at REF

1µF

REFADJ Input Leakage Current

20

µA

EXTERNAL REFERENCE

REFADJ Buffer Disable Threshold

To power down the internal reference

0.4

0.1

V

REF Input Voltage Range

Internal reference disabled (Note 3)

3.8

0.2

V

14

25

REF Input Current

Shutdown mode

±0.1

µA

DIGITAL INPUTS/OUTPUTS

Input High Voltage

0.7

×

V

Input Low Voltage

0.3

×

V

Input Leakage Current

±0.1

±1

µA

Input Hysteresis

0.1

V

Input Capacitance

15

pF

Output High Voltage

0.4

V

Output Low Voltage

0.4

V

Three-State Leakage Current

D0–D15

±0.1

±10

µA