ADM1191-2ARMZ-R71(RevB) Просмотр технического описания (PDF) - Analog Devices

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Компоненты Описание

производитель

ADM1191-2ARMZ-R71
(Rev.:RevB)

Digital Power Monitor with Convert Pin and ALERTB Output

Analog Devices 

ADM1191

Parameter

A0 PIN, A1 PIN

Set Address to 00, VADRLOWV

Set Address to 01, RADRLOWZ

Min

Typ

0

80

120

Set Address to 10, IADRHIGHZ

−0.3

Set Address to 11, VADRHIGHV

2

Input Current for 00 Decode, IADRLOW

−40

−25

Input Current for 11 Decode, IADRHIGH

3

I2C TIMING

Low Level Input Voltage, VIL

High Level Input Voltage, VIH

0.7 VBUS

Low Level Output Voltage on SDA, VOL

Output Fall Time on SDA from VIHMIN to VILMAX

Maximum Width of Spikes Suppressed by

Input Filtering on SDA and SCL Pins

20 + 0.1 CBUS

50

Input Current, II, on SDA/SCL When Not

−10

Driving a Logic Low Output

Input Capacitance on SDA/SCL

5

SCL Clock Frequency, fSCL

Low Period of the SCL Clock

600

High Period of the SCL Clock

1300

Setup Time for Repeated Start Condition, tSU;STA 600

SDA Output Data Hold Time, tHD;DAT

100

Setup Time for a Stop Condition, tSU;STO

Bus Free Time Between a Stop and a Start

Condition, tBUF

Capacitive Load for Each Bus Line

600

1300

Max

Unit Conditions

0.8

V

Low state

160

kΩ Resistor to ground state, load pin with

specified resistance for 01 decode

+0.3

μA Open state, maximum load allowed

on the A0 pin or A1 pin for 10 decode

5.5

V

High state

μA

VADR = 0 V to 0.8 V

6

μA

VADR = 2.0 V to 5.5 V

0.3 VBUS V

V

0.4

V

250

ns

250

ns

IOL = 3 mA

CBUS = bus capacitance from SDA to GND

+10

μA

pF

400

kHz

ns

ns

ns

900

ns

ns

ns

400

pF

1 Monitoring accuracy is a measure of the error in a code that is read back for a particular voltage/current. This is a combination of amplifier error, reference error, ADC

error, and error in ADC full-scale code conversion factor.

2 This is an absolute value to be used when converting ADC codes to current readings; any inaccuracy in this value is factored into absolute current accuracy values (see

the specifications for the Current Sense Absolute Accuracy parameter).

3 These are absolute values to be used when converting ADC codes to voltage readings; any inaccuracy in these values is factored into voltage accuracy values (see the

specifications for the Voltage Sense Accuracy parameter).

4 Time between the receipt of the command byte and the actual ADC result being placed in the register.

Rev. B | Page 4 of 16

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