Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

ADM1191-2ARMZ-R7 Datenblatt(PDF) 9 Page - Analog Devices

Teilenummer ADM1191-2ARMZ-R7
Bauteilbeschribung  Digital Power Monitor with Convert Pin and ALERTB Output
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADM1191-2ARMZ-R7 Datenblatt(HTML) 9 Page - Analog Devices

Back Button ADM1191-2ARMZ-R7 Datasheet HTML 5Page - Analog Devices ADM1191-2ARMZ-R7 Datasheet HTML 6Page - Analog Devices ADM1191-2ARMZ-R7 Datasheet HTML 7Page - Analog Devices ADM1191-2ARMZ-R7 Datasheet HTML 8Page - Analog Devices ADM1191-2ARMZ-R7 Datasheet HTML 9Page - Analog Devices ADM1191-2ARMZ-R7 Datasheet HTML 10Page - Analog Devices ADM1191-2ARMZ-R7 Datasheet HTML 11Page - Analog Devices ADM1191-2ARMZ-R7 Datasheet HTML 12Page - Analog Devices ADM1191-2ARMZ-R7 Datasheet HTML 13Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 9 / 16 page
background image
ADM1191
Rev. B | Page 9 of 16
VOLTAGE AND CURRENT READBACK
The ADM1191 contains the components to allow voltage and
current readback over an I2C bus. The voltage output of the
current sense amplifier and the voltage on the VCC pin are fed
into a 12-bit ADC via a multiplexer. The device can be instructed
to convert voltage and/or current at any time during operation
by issuing an I2C command or driving the CONV pin high. When
all conversions are complete, the voltage and/or current values
can be read back with 12-bit accuracy in two or three bytes.
SERIAL BUS INTERFACE
Control of the ADM1191 is carried out via the serial system
management bus (I2C). This interface is compatible with the I2C
fast mode (400 kHz maximum). The ADM1191 is connected to
this bus as a slave device, under the control of a master device.
IDENTIFYING THE ADM1191 ON THE I2C BUS
The ADM1191 has a 7-bit serial bus slave address. When the
device powers up, it does so with a default serial bus address.
The three MSBs of the address are set to 011; the four LSBs are
determined by the state of the A0 pin and the A1 pin. There are
16 configurations available on the A0 pin and A1 pin that corre-
spond to 16 I2C addresses for the four LSBs (see Table 5). This
scheme allows 16 ADM1191 devices to operate on a single I2C bus.
GENERAL I2C TIMING
Figure 16 and Figure 17 show timing diagrams for general write
and read operations using the I2C. The I2C specification defines
conditions for different types of read and write operations, which
are discussed in the Write and Read Operations section. The
general I2C protocol operates as follows:
1.
The master initiates a data transfer by establishing a start
condition, defined as a high-to-low transition on the serial
data line, SDA, while the serial clock line, SCL, remains high.
This indicates that a data stream is to follow. All slave periph-
erals connected to the serial bus respond to the start condition
and shift in the next eight bits, consisting of a 7-bit slave
address (MSB first) plus an R/W bit that determines the
direction of the data transfer, that is, whether data is written
to or read from the slave device (0 = write, 1 = read).
The peripheral whose address corresponds to the transmitted
address responds by pulling the data line low during the
low period before the ninth clock pulse, known as the
acknowledge bit, and holding it low during the high period
of this clock pulse. All other devices on the bus remain idle
while the selected device waits for data to be read from it
or written to it. If the R/W bit is 0, the master writes to the
slave device. If the R/W bit is 1, the master reads from the
slave device.
2.
Data is sent over the serial bus in sequences of nine clock
pulses: eight bits of data followed by an acknowledge bit
from the slave device. Data transitions on the data line
must occur during the low period of the clock signal and
remain stable during the high period because a low-to-
high transition when the clock is high can be interpreted as
a stop signal.
If the operation is a write operation, the first data byte after
the slave address is a command byte. This tells the slave
device what to expect next. It can be an instruction, such as
telling the slave device to expect a block write, or it can be
a register address that tells the slave where subsequent data
is to be written.
Because data can flow in only one direction, as defined by
the R/W bit, it is not possible to send a command to a slave
device during a read operation. Before performing a read
operation, it may be necessary to first execute a write
operation to tell the slave what sort of read operation to
expect and/or the address from which data is to be read.
3.
When all data bytes are read or written, stop conditions are
established. In write mode, the master pulls the data line
high during the 10th clock pulse to assert a stop condition.
In read mode, the master device releases the SDA line
during the SCL low period before the ninth clock pulse,
but the slave device does not pull it low. This is known as a no
acknowledge. The master then takes the data line low during
the SCL low period before the 10th clock pulse and then high
during the 10th clock pulse to assert a stop condition.
Table 5. Setting I2C Addresses via the A0 Pin and the A1 Pin
Base Address
A1 Pin State
A0 Pin State
A1 Pin Logic State
A0 Pin Logic State
Address in Binary1
Address in Hex
011
Ground
Ground
00
00
0110000X
0x60
Ground
Resistor to ground
00
01
0110001X
0x62
Ground
Floating
00
10
0110010X
0x64
Ground
High
00
11
0110011X
0x66
Resistor to ground
Ground
01
00
0110100X
0x68
Resistor to ground
Resistor to ground
01
01
0110101X
0x6A
Resistor to ground
Floating
01
10
0110110X
0x6C
Resistor to ground
High
01
11
0110111X
0x6E
Floating
Ground
10
00
0111000X
0x70
Floating
Resistor to ground
10
01
0111001X
0x72


Ähnliche Teilenummer - ADM1191-2ARMZ-R7

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Analog Devices
ADM1191-2ARMZ-R71 AD-ADM1191-2ARMZ-R71 Datasheet
389Kb / 16P
   Digital Power Monitor with Convert Pin and ALERTB O
REV. 0
More results

Ähnliche Beschreibung - ADM1191-2ARMZ-R7

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Analog Devices
ADM1191 AD-ADM1191 Datasheet
389Kb / 16P
   Digital Power Monitor with Convert Pin and ALERTB O
REV. 0
ADM1178 AD-ADM1178 Datasheet
203Kb / 16P
   Hot Swap Controller and Digital Power Monitor with AlertB Output
Rev. PrD May 2006
ADM1175 AD-ADM1175 Datasheet
693Kb / 24P
   Hot Swap Controller and Digital Power Monitor with Convert Pin
REV. 0
ADM1176 AD-ADM1176 Datasheet
683Kb / 24P
   Hot Swap Controller and I2C짰 Power Monitor with Convert Pin
REV. 0
ADM1192 AD-ADM1192_08 Datasheet
415Kb / 20P
   Digital Power Monitor with Clear Pin and ALERT Output
REV. B
ADM1192 AD-ADM1192 Datasheet
395Kb / 20P
   Digital Power Monitor with Clear Pin and ALERT Output
REV. 0
ADM1177 AD-ADM1177 Datasheet
203Kb / 16P
   Hot Swap Controller and Digital Power Monitor with Soft-Start Pin
Rev. PrD May 2006
ADM1177 AD-ADM1177_15 Datasheet
583Kb / 24P
   Hot Swap Controller and Digital Power Monitor with Soft Start Pin
REV. C
logo
Intersil Corporation
ISL28023FR12Z INTERSIL-ISL28023FR12Z Datasheet
2Mb / 55P
   Precision Digital Power Monitor with Margining
June 17, 2015
ISL28023 INTERSIL-ISL28023 Datasheet
2Mb / 55P
   Precision Digital Power Monitor with Margining
March 18, 2016
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com