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參數(shù)資料
| 型號： | MAX5841LEUB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Quad, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC |
| 中文描述： | SERIAL INPUT LOADING, 4 us SETTLING TIME, 10-BIT DAC, PDSO10 |
| 封裝： | MINIATURE, MICRO MAX PACKAGE-10 |
| 文件頁數(shù)： | 10/15頁 |
| 文件大?。?/td> | 408K |
| 代理商： | MAX5841LEUB |
M
Quad, 10-Bit, Low-Power, 2-Wire, Serial
Voltage-Output DAC
10
______________________________________________________________________________________
read operations require S
r
conditions because of the
change in direction of data flow.
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 MAX5841 generates an ACK
when receiving an address or data by pulling SDA low
during the ninth clock period. When transmitting data,
the MAX5841 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 MAX5841
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 MAX5841 (R/
W
= 0 selects the write condi-
tion, R/
W
= 1 selects the read condition). After
receiving the proper address, the MAX5841 issues an
ACK by pulling SDA low for one clock cycle.
The MAX5841 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
MAX5841s to share the same bus.
Write Data Format
In write mode (R/
W
= 0), data that follows the address
byte controls the MAX5841 (Figure 5). Bits C3
–
C0 con-
figure the MAX5841 (Table 3). Bits D9
–
D0 are DAC
data. Bits S0 and S1 are sub-bits and are always zero.
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 MAX5841 features an extended command mode
that is accessed by setting C3
–
C0 = 1 and D9
–
D6 = 0.
The next data byte writes to the shutdown registers
(Figure 7). Setting bits A, B, C, or D to 1 sets that DAC
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
D9
D8
D7
D6
Figure 5. Command Byte Definition
PART
V
ADD
DEVICE ADDRESS
(A6...A0)
MAX5841L
MAX5841L
MAX5841M
MAX5841M
GND
V
DD
GND
V
DD
0111 100
0111 101
1011 100
1011 101
Table 2. MAX5841 I
2
C Slave Addresses
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| MAX5841LEUB+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 4Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5841LEUB+T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 4Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5841LEUB-T | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5841MEUB | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5841MEUB+ | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 4Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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