AD8402AR1 Analog Devices Inc, AD8402AR1 Datasheet - Page 14

• Manufacturer Part Number: AD8402AR1
• Description: IC POT DIG DUAL 1K 8BIT 14SOIC
• Manufacturer: Analog Devices Inc

Specifications of AD8402AR1

• Rohs Status: RoHS non-compliant
• Taps: 256
• Resistance (ohms): 1K
• Number Of Circuits: 2
• Temperature Coefficient: 500 ppm/°C Typical
• Memory Type: Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Resistance In Ohms: 1.00K
• End To End Resistance: 1kohm
• Track Taper: Linear
• No. Of Steps: 256
• Resistance Tolerance: ± 33%
• Supply Voltage Range: 2.7V To 5.5V
• Control Interface: 3 Wire, Serial
• No. Of Pots: Dual
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD8400/AD8402/AD8403
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 11. Resistance Step Position Nonlinearity Error vs. Code
–0.5
–1.0
1.0
0.5
10
8
6
4
2
0
0
5
4
3
2
1
0
Figure 10. Resistance Linearity vs. Conduction Current
0
0
Figure 9. Wiper to End Terminal Resistance vs. Code
0
32
32
1
80
V
R
DD
R
AB
H
WB
40
64
64
DIGITAL INPUT CODE (Decimal)
= 3V OR 5V
= 10kΩ
H
T
2
A
FF
= –40°C
I
H
96
96
WB
CODE (Decimal)
20
CURRENT (mA)
H
3
128
05
128
H
CODE = 10
4
T
160
160
A
T
A
= +85°C
= +25°C
H
5
192
192
R
WA
T
V
V
A
DD
DD
224
224
= 25°C
6
= 5V
= 5V
256
256
7
Rev. E | Page 14 of 32
–0.5
–1.0
Figure 13. Potentiometer Divider Nonlinearity Error vs. Code
1.0
0.5
60
48
36
24
12
60
48
36
24
12
0
0
0
Figure 12. 10 kΩ Wiper-Contact-Resistance Histogram
Figure 14. 50 kΩ Wiper-Contact-Resistance Histogram
0
40.0 42.5
SS = 184 UNITS
V
T
35
SS = 1205 UNITS
V
T
DD
A
A
DD
= 25°C
= 25°C
32
= 4.5V
= 4.5V
37
45.0 47.5 50.0 52.5 55.0 57.5 60.0 62.5

39
64
DIGITAL INPUT CODE (Decimal)
T
A
= +25°C
41
WIPER RESISTANCE (Ω)
WIPER RESISTANCE (Ω)
96
43
T
128
T
A
45
A
= +85°C
= –40°C
47
160
49
192
51
V
DD
224
53
= 5V
65.0
55
256