AD5161BRMZ100 Analog Devices Inc, AD5161BRMZ100 Datasheet - Page 14

• Manufacturer Part Number: AD5161BRMZ100
• Description: IC DGTL POT SPI 100K 10-MSOP
• Manufacturer: Analog Devices Inc

Specifications of AD5161BRMZ100

• Temperature Coefficient: 45 ppm/°C Typical
• Taps: 256
• Resistance (ohms): 100K
• Number Of Circuits: 1
• Memory Type: Volatile
• Interface: I²C, SPI
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Resistance In Ohms: 100K
• End To End Resistance: 100kohm
• No. Of Steps: 256
• Resistance Tolerance: ± 30%
• Supply Voltage Range: 2.7V To 5.5V
• Control Interface: Serial, I2C
• No. Of Pots: Single
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD5161
I
Table 7. Write Mode
Table 8. Read Mode
S = Start Condition
P = Stop Condition
A = Acknowledge
X = Don’t Care
W = Write
START BY
S 0 1 0 1 1 0
MASTER
2
C INTERFACE
S
SCL
SDA
SDA
SCL
0
Slave Address Byte
P
1
0
1
t
SLAVE ADDRESS BYTE
1
START BY
MASTER
1
S
0
FRAME 1
0
Slave Address Byte
SCL
SDA
t
AD0
2
1
1
1
1
0
W
t
3
Figure 41. Reading Data from a Previously Selected RDAC Register in Write Mode
0
1
1
A X
AD0
SLAVE ADDRESS BYTE
t
8
0
t
8
0
R/W
FRAME 1
1
RS
ACK BY
AD5161
t
9
Figure 39. I
AD0
9
1
Instruction Byte
Figure 40. Writing to the RDAC Register
SD
t
6
1
X
0
2
R
RS
C Interface Detailed Timing Diagram
X X X X X A
AD0
t
t
4
Rev. A | Page 14 of 20
9
SD
INSTRUCTION BYTE
R/W
A
ACK BY
AD5161
FRAME 2
X
9
D7
X
t
D7
1
7
R = Read
RS = Reset wiper to Midscale 80
SD = Shutdown connects wiper to B terminal and open circuits
A terminal. It does not change contents of wiper register.
D7, D6, D5, D4, D3, D2, D1, D0 = Data Bits.
X
D6
D6
X
D5
D7
RDAC REGISTER
X
D5
S
D4
FRAME 2
ACK BY
AD5161
t
D6
5
9
D3
D4
Data Byte
D7
1
D5
D2
t
2
D6
D3
D1
Data Byte
D4
D5
D0
DATA BYTE
NO ACK
BY MASTER
D2
H
D4
FRAME 3
D3
9
D3
STOP BY
MASTER
D1
D2
D2
D1
D0
D1
D0
P
ACK BY
AD5161
D0
A
t
10
9
STOP BY
MASTER
A P
P