Rainbow-electronics MAX1116 Manual de usuario descargar pdf (Pagina 3)

MAX1115/MAX1116

Single-Supply, Low-Power, Serial 8-Bit ADCs

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Note 1: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range and off-

set have been calibrated.

Note 2: Input = 0 with logic input levels of 0 and V

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Rejection Ratio PSRR Full-scale or zero input

±0.5

±1

LSB/V

DIGITAL INPUTS (CNVST AND SCLK)

Input High Voltage V

Input Low Voltage V

0.8 V

Input Hystersis

HYST

0.2 V

Input Current High I

±10 µA

Input Current Low I

±10 µA

Input Capacitance C

2pF

DIGITAL OUTPUT (DOUT)

Output High Voltage V

SOURCE

= 2mA V

- 0.5 V

SINK

= 2mA 0.4

Output Low Voltage V

SINK

= 4mA 0.8

Three-State Leakage Current I

±0.01

±10 µA

Three-State Output Capacitance

OUT

4pF

TIMING CHARACTERISTICS (Figures 6a–6d)

CNVST High Time t

csh

100

CNVST Low Time t

csl

100

Conversion Time t

conv

7.5 µs

Serial Clock High Time t

75 ns

Serial Clock Low Time t

75 ns

Serial Clock Period t

200

Falling of CNVST to DOUT

Active

csd

LOAD

= 100pF, Figure 1 100 ns

Serial Clock Falling Edge to

DOUT

LOAD

= 100pF 10 100 ns

Serial Clock Rising Edge

To DOUT High-Z

chz

LOAD

= 100pF, Figure 2

100

500 ns

La st S er i al C l ock to N ex t C N V S T

( successi ve conver si ons on C H 0)

ccs

50 ns

ELECTRICAL CHARACTERISTICS (continued)

= +2.7V to +3.6V (MAX1115), V

= +4.5V to +5.5V (MAX1116), T

= T

MIN

to T

MAX

, unless otherwise noted.)

1 2 3 4 5 6 7 8 ... 11 12

MAX1115/MAX1116 1

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Rainbow-electronics MAX1116 Manual de usuario Pagina 3

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