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AD5172EVAL1 Folha de dados(PDF) 4 Page - Analog Devices

Nome de Peças AD5172EVAL1
Descrição Electrónicos  256-Position One-Time Programmable Dual-Channel I2C Digital Potentiometers
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
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AD5172EVAL1 Folha de dados(HTML) 4 Page - Analog Devices

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AD5172/AD5173
Rev. A | Page 4 of 24
ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS
Table 2. VDD = 5 V ± 10% or 3 V ± 10%; VA = VDD; VB = 0 V; –40°C < TA < +125°C; unless otherwise noted
Parameter
Symbol
Conditions
Min
Typ1
Max
Unit
DC CHARACTERISTICS—RHEOSTAT MODE
Resistor Differential Nonlinearity2
R-DNL
RWB, VA = No Connect
–1
±0.1
+1
LSB
Resistor Integral Nonlinearity2
R-INL
RWB, VA = No Connect
–2.5
±0.25
+2.5
LSB
Nominal Resistor Tolerance3
∆RAB
TA = 25°C
–20
+20
%
Resistance Temperature Coefficient
(∆RAB/RAB)/∆T
VAB = VDD, Wiper = No Connect
35
ppm/°C
RWB (Wiper Resistance)
RWB
Code = 0x00, VDD = 5 V
160
200
DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE (Specifications Apply to all VRs)
Differential Nonlinearity4
DNL
–1
±0.1
+1
LSB
Integral Nonlinearity4
INL
–1
±0.3
+1
LSB
Voltage Divider Temperature Coefficient
(∆VW/VW)/∆T
Code = 0x80
15
ppm/°C
Full-Scale Error
VWFSE
Code = 0xFF
–2.5
–1
0
LSB
Zero-Scale Error
VWZSE
Code = 0x00
0
1
2.5
LSB
RESISTOR TERMINALS
Voltage Range5
VA, VB, VW
GND
VDD
V
Capacitance6 A, B
CA, CB
f = 1 MHz, Measured to GND, Code = 0x80
45
pF
Capacitance6 W
CW
f = 1 MHz, Measured to GND, Code = 0x80
60
pF
Shutdown Supply Current7
IA_SD
VDD = 5.5 V
0.01
1
µA
Common-Mode Leakage
ICM
VA = VB = VDD/2
1
nA
DIGITAL INPUTS AND OUTPUTS
Input Logic High
VIH
VDD = 5 V
2.4
V
Input Logic Low
VIL
VDD = 5 V
0.8
V
Input Logic High
VIH
VDD = 3 V
2.1
V
Input Logic Low
VIL
VDD = 3 V
0.6
V
Input Current
IIL
VIN = 0 V or 5 V
±1
µA
Input Capacitance6
CIL
5
pF
POWER SUPPLIES
Power Supply Range
VDD RANGE
2.7
5.5
V
OTP Supply Voltage8
VDD_OTP
6
6.5
V
Supply Current
IDD
VIH = 5 V or VIL = 0 V
3.5
6
µA
OTP Supply Current9
IDD_OTP
100
mA
Power Dissipation10
PDISS
VIH = 5 V or VIL = 0 V, VDD = 5 V
30
µW
Power Supply Sensitivity
PSS
VDD = +5 V ± 10%, Code = Midscale
±0.02
±0.08
%/%
DYNAMIC CHARACTERISTICS11
Bandwidth –3 dB
BW
RAB = 10 kΩ, Code = 0x80
600
kHz
RAB = 50 kΩ, Code = 0x80
100
kHz
RAB = 100 kΩ, Code = 0x80
40
kHz
Total Harmonic Distortion
THDW
VA =1 V rms, VB = 0 V, f = 1 kHz, RAB = 10 kΩ
0.1
%
VW Settling Time (10 kΩ/50 kΩ/100 kΩ)
tS
VA = 5 V, VB = 0 V, ±1 LSB Error Band
2
µs
Resistor Noise Voltage Density
eN_WB
RWB = 5 kΩ, RS = 0
9
nV/√Hz
1 Typical specifications represent average readings at 25°C and VDD = 5 V.
2 Resistor position nonlinearity error, R-INL, is the deviation from an ideal value measured between the maximum resistance and the minimum resistance wiper
positions. R-DNL measures the relative step change from ideal between successive tap positions. Parts are guaranteed monotonic.
3 VAB = VDD, Wiper (VW) = no connect.
4 INL and DNL are measured at VW with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. VA = VDD and VB = 0 V.
DNL specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions.
5 Resistor terminals A, B, W have no limitations on polarity with respect to each other.
6 Guaranteed by design and not subject to production test.
7 Measured at the A terminal. The A terminal is open circuited in shutdown mode.
8 Different from operating power supply, power supply OTP is used one time only.
9 Different from operating current, supply current for OTP lasts approximately 400 ms for one time only.
10 PDISS is calculated from (IDD × VDD). CMOS logic level inputs result in minimum power dissipation.
11 All dynamic characteristics use VDD = 5 V.


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