58.6ksps, 14-Bit, 2-Wire Serial ADC

in a 14-Pin TSSOP

4

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ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Analog Supply Voltage

4.75

5.25

V

Digital Supply Voltage

2.7

5.5

V

1.8

2.5

0.7

mA

40

Internal reference

(powered down

between conversions,

R/W = 0)

Shutdown

0.4

5.0

µA

1.8

2.5

1.4

mA

1.1

mA

Internal reference

(always on, R/W = 1)

Shutdown

0.4

5

µA

0.90

1.8

0.36

mA

40

Analog Supply Current

External reference

Shutdown

0.4

5

µA

260

400

65

6

Digital Supply Current

Shutdown

0.2

5

µA

Power-Supply Rejection Ratio

PSRR

2

6

LSB/V

TIMING CHARACTERISTICS FOR 2-WIRE FAST MODE (Figure 1a and Figure 2)

Serial Clock Frequency

400

kHz

Bus Free Time Between a STOP

and a START Condition

1.3

µs

Hold Time for Start Condition

0.6

µs

Low Period of the SCL Clock

1.3

µs

High Period of the SCL Clock

0.6

µs

Setup Time for a Repeated

START Condition (Sr)

0.6

µs

Data Hold Time

(Note 9)

0

900

ns

Data Setup Time

100

ns

Rise Time of Both SDA and SCL

Signals, Receiving

(Note 10)

20 +

300

ns

Fall Time of SDA Transmitting

(Note 10)

20 +

300

ns

Setup Time for STOP Condition

0.6

µs

Capacitive Load for Each Bus Line

400

pF

Pulse Width of Spike Suppressed

50

ns