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MAX5804 Datasheet(PDF) 21 Page - Maxim Integrated Products

Part # MAX5804
Description  Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output Voltage DACs with Internal Reference and I2C Interface
PDF  31 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX5804 Datasheet(HTML) 21 Page - Maxim Integrated Products

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MAX5803/MAX5804/MAX5805
Ultra-Small, Single-Channel, 8-/10-/12-Bit Buffered Output
Voltage DACs with Internal Reference and I2C Interface
21
Maxim Integrated
one time; partial and/or multiple attempts to readback
executed in succession will not yield usable data.
I2C Compatibility
The MAX5803/MAX5804/MAX5805 are fully compatible
with existing I2C systems. SCL and SDA are high-
impedance inputs; SDA provides an open drain which
pulls the data line low to transmit data or ACK pulses.
Figure 8 shows a typical I2C application.
I2C User-Command Register Map
This section lists the user-accessible commands and
registers for the MAX5803/MAX5804/MAX5805.
Table 4 provides detailed information about the I2C
Command Registers.
Figure 7. Interface Verification I2C Register Read Sequences
SCL
A
W
20 19 18 17
A
16
15 14 13 12 11 10 9
A
8
SDA
0 0 1 1
0 A1 A0
22
23
7 6 5 4 3 2 1
A
0
R
~A
POINTER UPDATED
(QUALIFIES FOR COMBINED READ BACK)
COMMAND EXECUTED
(QUALIFIES FOR INTERFACE READ BACK)
SCL
SDA
COMMAND EXECUTED
(QUALIFIES FOR INTERFACE READ BACK)
POINTER UPDATED
(QUALIFIES FOR COMBINED READ BACK)
21
A
W20191817A
16
15 14 13 12 11 10 9A
8
00 11 0A1A022
23
76 54 32 1A
0
21
START
STOP
WRITE ADDRESS
BYTE #1: I2C SLAVE ADDRESS
WRITE COMMAND
BYTE #2: COMMAND BYTE
(B[23:16])
WRITE DATA
BYTE #3: DATA HIGH BYTE
(B[15:8])
WRITE DATA
BYTE #4: DATA LOW BYTE
(B[7:0])
START
STOP
WRITE ADDRESS
BYTE #1: I2C SLAVE ADDRESS
READ COMMAND
BYTE #2: COMMAND BYTE
(B[23:16])
READ DATA
BYTE #3: DATA HIGH BYTE
(B[15:8])
READ DATA
BYTE #4: DATA LOW BYTE
(B[7:0])
START
REPEATED
START
WRITE ADDRESS
BYTE #1: I2C SLAVE ADDRESS
WRITE COMMAND
BYTE #2: COMMAND BYTE
(B[23:16])
WRITE DATA
BYTE #3: DATA HIGH BYTE
(B[15:8])
WRITE DATA
BYTE #4: DATA LOW BYTE
(B[7:0])
STOP
WRITE ADDRESS
BYTE #1: I2C SLAVE ADDRESS
READ COMMAND
BYTE #2: COMMAND BYTE
(B[23:16])
READ DATA
BYTE #3: DATA HIGH BYTE
(B[15:8])
READ DATA
BYTE #4: DATA LOW BYTE
(B[7:0])
ACK. GENERATED BY MAX5803/MAX5804/MAX5805
ACK. GENERATED BY I2C MASTER
A20191817A
16
15 14 13 12 11 10 9A
8
00 11 0A1A022
23
76 54 32 10
21
A
R20191817A
16
15 14 13 12 11 10 9A
8
00 11 0A1A022
23
76 54 32 1~A
0
21
A
A



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