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AD5270 Datenblatt(PDF) 3 Page - Analog Devices

Teilenummer AD5270
Bauteilbeschribung  1024-/256-Position, 1% Resistor Tolerance Error, SPI Interface and 50-TP Memory Digital Rheostat
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Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
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Data Sheet
AD5270/AD5271
Rev. F | Page 3 of 24
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—AD5270
VDD = 2.7 V to 5.5 V, VSS = 0 V; VDD = 2.5 V to 2.75 V, VSS = −2.5 V to −2.75 V; −40°C < TA < +125°C, unless otherwise noted.
Table 1.
Parameter
Symbol
Test Conditions/Comments
Min
Typ1
Max
Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resolution
10
Bits
Resistor Integral Nonlinearity2, 3
R-INL
RAW = 20 kΩ, |VDD − VSS| = 3.0 V to 5.5 V
−1
+1
LSB
RAW = 20 kΩ, |VDD − VSS| = 2.7 V to 3.0 V
−1
+1.5
LSB
RAW = 50 kΩ, 100 kΩ
−1
+1
LSB
Resistor Differential Nonlinearity2
R-DNL
−1
+1
LSB
Nominal Resistor Tolerance
R-Perf Mode4
See
Table 2 and Table 3
−1
±0.5
+1
%
Normal Mode
±15
%
Resistance Temperature Coefficient5, 6
Code = full scale
5
ppm/°C
Wiper Resistance
Code = zero scale
35
70
RESISTOR TERMINALS
Terminal Voltage Range5, 7
VSS
VDD
V
Capacitance5 A
f = 1 MHz, measured to GND, code =
half scale
90
pF
Capacitance5 W
f = 1 MHz, measured to GND, code =
half scale
40
pF
Common-Mode Leakage Current5
VA = VW
50
nA
DIGITAL INPUTS
Input Logic5
High
VINH
2.0
V
Low
VINL
0.8
V
Input Current
IIN
±1
µA
Input Capacitance5
CIN
5
pF
DIGITAL OUTPUT
Output Voltage5
High
VOH
RPULL_UP = 2.2 kΩ to VDD
VDD − 0.1
V
Low
VOL
RPULL_UP = 2.2 kΩ to VDD
VDD = 2.7 V to 5.5 V, VSS = 0 V
0.4
V
VDD = 2.5 V to 2.75 V, VSS = −2.5 V to −2.75 V
0.6
V
Tristate Leakage Current
−1
+1
µA
Output Capacitance5
5
pF
POWER SUPPLIES
Single-Supply Power Range
VSS = 0 V
2.7
5.5
V
Dual-Supply Power Range
±2.5
±2.75
V
Supply Current
Positive
IDD
1
µA
Negative
ISS
−1
µA
50-TP Store Current5, 8
Positive
IDD_OTP_STORE
4
mA
Negative
ISS_OTP_STORE
−4
mA
OTP Read Current5, 9
Positive
IDD_OTP_READ
500
µA
Negative
ISS_OTP_READ
−500
µA


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