- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383443 > MAX5822MEUA (MAXIM INTEGRATED PRODUCTS INC) Dual, 12-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC PDF資料下載
參數(shù)資料
| 型號： | MAX5822MEUA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Dual, 12-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC |
| 中文描述： | SERIAL INPUT LOADING, 4 us SETTLING TIME, 12-BIT DAC, PDSO8 |
| 封裝： | MINIATURE, MICRO MAX PACKAGE-8 |
| 文件頁數(shù)： | 9/13頁 |
| 文件大小： | 287K |
| 代理商： | MAX5822MEUA |
Acknowledge Bit (ACK)
The acknowledge bit (ACK) is the ninth bit attached to
any 8-bit data word. ACK is always generated by the
receiving device. The MAX5822 generates an ACK
when receiving an address or data by pulling SDA low
during the ninth clock period. When transmitting data,
the MAX5822 waits for the receiving device to generate
an ACK. Monitoring ACK allows for detection of unsuc-
cessful data transfers. An unsuccessful data transfer
occurs if a receiving device is busy or if a system fault
has occurred. In the event of an unsuccessful data
transfer, the bus master should reattempt communica-
tion at a later time.
Slave Address
A bus master initiates communication with a slave
device by issuing a START condition followed by the 7-
bit slave address (Figure 4). When idle, the MAX5822
waits for a START condition followed by its slave
address. The serial interface compares each address
value bit by bit, allowing the interface to power down
immediately, if an incorrect address is detected. The
LSB of the address word is the Read/
Write
(R/
W
) bit.
R/
W
indicates whether the master is writing to or read-
ing from the MAX5822 (R/
W
= 0 selects the write condi-
tion, R/
W
= 1 selects the read condition). After
receiving the proper address, the MAX5822 issues an
ACK by pulling SDA low for one clock cycle.
The MAX5822 has four different factory/user-pro-
grammed addresses (Table 2). Address bits A6
through A1 are preset, while A0 is controlled by ADD.
Connecting ADD to GND sets A0 = 0. Connecting ADD
to V
DD
sets A0 = 1. This feature allows up to four
MAX5822s to share the same bus.
Write Data Format
In write mode (R/
W
= 0), data that follows the address
byte controls the MAX5822 (Figure 5). Bits C3
–
C0 con-
figure the MAX5822 (Table 3). Bits D11
–
D0 are DAC
data. Input and DAC registers update on the falling
edge of SCL during the acknowledge bit. Should the
write cycle be prematurely aborted, data is not updated
and the write cycle must be repeated. Figure 6 shows
two example write data sequences.
Extended Command Mode
The MAX5822 features an extended command mode
that is accessed by setting C3
–
C0 = 1 and D11
–
D8 =
0. The next data byte writes to the shutdown registers
M
Dual, 12-Bit, Low-Power, 2-Wire, Serial
Voltage-Output DAC
_______________________________________________________________________________________
9
SCL
SDA
S
S
r
P
Figure 2. START and STOP Conditions
SCL
SDA
STOP
START
SCL
SDA
ILLEGAL
STOP
START
ILLEGAL EARLY STOP CONDITION
LEGAL STOP CONDITION
Figure 3. Early STOP Conditions
S
A6
A5
A4
A3
A2
A1
A0
R/W
Figure 4. Slave Address Byte Definition
C3
C2
C1
C0
D11
D10
D9
D8
Figure 5. Command Byte Definition
PART
V
ADD
DEVICE ADDRESS
(A6...A0)
MAX5822L
MAX5822L
MAX5822M
MAX5822M
GND
V
DD
GND
V
DD
0111 000
0111 001
1011 000
1011 001
Table 2. MAX5822 I
2
C Slave Addresses
相關PDF資料 |
PDF描述 |
|---|---|
| MAX5822 | Dual D-type Positive-Edge-Triggered Flip-Flops With Preset And C 14-CFP -55 to 125 |
| MAX5822LEUA | Dual, 12-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC |
| MAX5841MEUB | Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC |
| MAX5841 | 4-Bit Magnitude Comparators 20-LCCC -55 to 125 |
| MAX5841LEUB | Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5822MEUA+ | 功能描述:數(shù)模轉換器- DAC 12-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5822MEUA+T | 功能描述:數(shù)模轉換器- DAC 12-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5822MEUA-T | 功能描述:數(shù)模轉換器- DAC RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5823AUP+ | 功能描述:數(shù)模轉換器- DAC MAX5823AUP+ RoHS:否 制造商:Maxim Integrated 轉換器數(shù)量: DAC 輸出端數(shù)量: 轉換速率: 分辨率: 接口類型: 穩(wěn)定時間: 最大工作溫度: 安裝風格: 封裝 / 箱體: 封裝:Tube |
| MAX5823AUP+T | 制造商:Maxim Integrated Products 功能描述:8-BIT 8-CHANNEL VOLTAGE DAC WITH I2C INTERFACE - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC DAC 8BIT I2C/SRL 8CH 20TSSOP |
發(fā)布緊急采購，3分鐘左右您將得到回復。