ADC 2 Bedienungsanleitung PDF herunterladen (Seite 4)

MAX110/MAX111

Low-Cost, 2-Channel, ±14-Bit Serial ADCs

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—MAX111

= 5V ±5%, f

XCLK

= 1MHz, ÷ 2 mode (DV2 = 1), 81,920 CLK cycles/conv, V

REF+

= 1.5V, V

REF-

= 0V, T

= T

MIN

to T

MAX

unless otherwise noted. Typical values are at T

= +25°C.)

LSB

nA500

CONDITIONS

IN+

, I

IN-

Input Bias Current

(Note 3) pF10

-0.667 x V

REF

≤ V

≤ 0.667 x V

REF

-V

REF

≤ V

REF

-0.667 x V

REF

≤ V

≤ 0.667 x V

REF

Input Capacitance

-V

REF

≤ V

REF

V0V

- 3.2

IN+

IN-

Absolute Input Voltage

Range

V-V

REF

Differential Input Voltage

Range

-V

REF

≤ V

REF

ppm15V

= 4.75V to 5.25VPower-Supply Rejection

%FSRINL

ppm/°C8

Full-Scale Error

Temperature Drift

Relative Accuracy,

Differential Input

(Notes 3, 5–7)

(Notes 3, 4)

±0.25

±2

±0.2

±0.20

DNLDifferential Nonlinearity

(Note 6)

UNITSMIN TYP MAXSYMBOL

ppm/V6

(Note 2)

PARAMETER

14 + POL

+ OFL

RESResolution

CMRR

mV±4Offset Error

Common-Mode Rejection

Ratio

10mV ≤ (V

IN+

= V

IN-

) ≤ 2.0V

Bits

No-Missing-Codes

Resolution

±0.10

(Note 3)

-8 0

±0.05 ±0.10

Full-Scale Error

Uncalibrated

±0.03 ±0.05

MAX111BM

13 + POL

+ OFL

Bits

±0.18

IN+

= V

IN-

= 0V

MAX111BC/E

MAX111AC/E

After gain calibration (Note 5)

≤ 0.667 x V

REF

0V ≤ V

≤ V

REF

≤ 0.667 x V

REF

0V ≤ V

≤ V

REF

0V ≤ V

≤ V

REF

≤ 0.667 x V

REF

%FSRINL

Relative Accuracy,

Single-Ended Input

(IN- = GND)

±0.25

±0.15

±0.10

±0.1

±0.06

MAX111BM

±0.18

MAX111BC/E

MAX111AC/E

ACCURACY (Note 1)

ANALOG INPUTS

-0.667 x V

REF

≤ V

≤ 0.667 x V

REF

1 2 3 4 5 6 7 8 9 ... 23 24

MAX110/MAX111 1

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