MAX115 datasheet(3/14 Pages) MAXIM

3 / 14 page

2x4-Channel, Simultaneous-Sampling

12-Bit ADCs

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ELECTRICAL CHARACTERISTICS (continued)

(AVDD = +5V ±5%, AVSS = -5V ±5%, DVDD = +5V ±5%, VREFIN = +2.5V (external reference), AGND = DGND = 0, 4.7µF capacitor

from REFOUT to AGND, 0.1µF capacitor from REFIN to AGND, fCLK = 16MHz, external clock, 50% duty cycle. TA = TMIN to TMAX,

unless otherwise noted. Typical values are at TA = +25°C.)

CONDITIONS

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

MAX115

±5

VIN

Input Voltage Range

MAX115 (-5V to +5V range)

µA

±625

IIN

Input Current

CIN

Input Capacitance

600

tACQ

Acquisition Time

MHz

Small-Signal Bandwidth

MHz

1.3

Full-Power Bandwidth

mV/ms

Drop Rate

Aperture Delay

Aperture Jitter

500

Aperture-Delay Matching

TA = +25°C

2.462

2.5

2.532

VREFOUT

Output Voltage

0 < IREF < 1mA

mV/mA

0.5

External Load Regulation

(Note 8)

ppm/°C

REFOUT Tempco

µF

0.1

External Capacitive Bypass

at REFIN

2.40

2.50

2.60

Input Voltage Range

µF

4.7

External Capacitive Bypass

at REFOUT

µA

±50

Input Current

Ω

Input Resistance (Note 9)

Input Capacitance

MHz

External Clock Frequency

2.4

VIH

Input High Voltage

0.8

VIL

Input Low Voltage

CONVST, RD, WR, CS, CLK

±1

CIN

Input Capacitance

A0–A3

µA

±10

IIN

Input Current

MAX116

±2.5

MAX116 (-2.5V to +2.5V range)

±15

MHz

5.6

14.8

Internal Clock Frequency

ANALOG INPUT

TRACK/HOLD

REFERENCE OUTPUT (Note 7)

REFERENCE INPUT

EXTERNAL CLOCK

DIGITAL INPUTS (CONVST, RD, WR, CS, CLK, A0–A3) (Note 1)

INTERNAL CLOCK

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