AD5251BRU100 Analog Devices Inc, AD5251BRU100 Datasheet - Page 12

• Manufacturer Part Number: AD5251BRU100
• Manufacturer: Analog Devices Inc

Specifications of AD5251BRU100

• Number Of Elements: 2
• # Of Taps: 64
• Resistance (max): 100KOhm
• Power Supply Requirement: Single/Dual
• Interface Type: Serial (2-Wire/I2C)
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): ±2.5V
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): ±2.25V
• Dual Supply Voltage (max): ±2.75V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 14
• Lead Free Status / RoHS Status: Not Compliant

AD5251/AD5252
Figure 16. AD5252 Gain vs. Frequency vs. Code, R
Figure 15. AD5252 Gain vs. Frequency vs. Code, R
–100
100
–20
–40
–60
–80
80
60
40
20
–12
–18
–24
–30
–36
–42
–48
–54
–60
0
–12
–18
–24
–30
–36
–42
–48
–54
–60
–6
–6
0
0
0
10
10
32
Figure 17. AD5252 ΔR
100
100
64
100kΩ
1kΩ
1k
1k
96
CODE (Decimal)
0x80
0x10
0x40
0x20
0x08
FREQUENCY (Hz)
0x04
0x02
0x01
0x80
0x40
0x10
0x04
0x02
0x01
FREQUENCY (Hz)
0x20
0x08
128
10k
10k
AB
10kΩ
vs. Code, T
160
100k
100k
50kΩ
192
A
AB
AB
= 25°C
= 100 kΩ , T
= 50 kΩ , T
V
0xFF
DD
1M
0xFF
224
1M
= 5.5V
0x00
0x00
256
A
A
10M
= 25°C
10M
= 25°C
Rev. B | Page 12 of 28
1.2
1.0
0.8
0.6
0.4
0.2
0
DIGITAL FEEDTHROUGH
Figure 19. Clock Feedthrough and Midscale Transition Glitch
1
Figure 18. Supply Current vs. Digital Input Clock Frequency
Figure 20. t
10
MIDSCALE
PRESET
MIDSCALE
PRESET
100
EEMEM_RESTORE
CLOCK FREQUENCY (Hz)
400ns/DIV
1k
RESTORE RDAC1
SETTING TO 0x3F
V
GND = VB1 = VB3
RESTORE RDAC3
SETTING TO 0x3F
DD
of RDAC0 and RDAC3
10k
= VA1 = VA3 = 3.3V
V
T
DD
A
100k
V
= 25°C
= 5.5V
DD
= 2.7V
1M
CLK
V
V
V
(NO DE-
COUPLING
CAPS)
V
(0x3F
STORED
IN EEMEM)
V
(0x3F
STORED
IN EEMEM)
W
DD
DD
WB1
WB3
10M
= 5V