AD5247 查看數據表（PDF） - Analog Devices
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AD5247 Datasheet PDF : 20 Pages
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AD5247
ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS
Table 2. VDD = 5 V ± 10% or 3 V ± 10%; VA = VDD; –40°C < TA < +125°C; unless otherwise noted
Parameter
Symbol Conditions
Min Typ1
DC CHARACTERISTICS—RHEOSTAT MODE
Resistor Differential Nonlinearity2
Resistor Integral Nonlinearity2
Nominal Resistor Tolerance3
Resistance Temperature Coefficient
RWB
DC CHARACTERISTICS—POTENTIOMETER
DIVIDER MODE
Differential Nonlinearity4
Integral Nonlinearity4
Voltage Divider Temperature Coefficient
Full-Scale Error (50 kΩ, 100 kΩ)
Zero-Scale Error (50 kΩ, 100 kΩ)
Full-Scale Error (10 kΩ)
Zero-Scale Error (10 kΩ)
RESISTOR TERMINALS
Voltage Range5
Capacitance6 A
Capacitance6 W
Common-Mode Leakage
DIGITAL INPUTS AND OUTPUTS
Input Logic High
Input Logic Low
Input Logic High
Input Logic Low
Input Current
Input Capacitance6
POWER SUPPLIES
Power Supply Range
Supply Current
Power Dissipation7
Power Supply Sensitivity
DYNAMIC CHARACTERISTICS6, 8
Bandwidth –3 dB
Total Harmonic Distortion
VW Settling Time (10 kΩ/50 kΩ/100 kΩ)
Resistor Noise Voltage Density
R-DNL
R-INL
∆RAB
∆RAB/∆T
RWB
RWB, VA = No Connect
RWB, VA = No Connect
VA = VDD, Wiper = No Connect
Code = 0x00
–1 ±0.1
–2 ±0.25
–20
45
75
DNL
INL
∆VW/∆T
VWFSE
VWZSE
VWFSE
VWZSE
Code = 0x40
Code = 0x7F
Code = 0x00
Code = 0x7F
Code = 0x00
–1 ±0.1
–1 ±0.2
15
–1 –1
0
+0.4
–2 –0.5
0
+0.5
VA, W
CA
f = 1 MHz, Measured to GND,
Code = 0x40
CW
f = 1 MHz, Measured to GND,
Code = 0x40
ICM
VA = VDD/2
GND
45
60
1
VIH
VDD = 5V
VIL
VDD = 5 V
VIH
VDD = 3 V
VIL
VDD = 3 V
IIL
VIN = 0 V or 5 V
CIL
2.4
2.1
5
VDD RANGE
2.7
IDD
VIH = 5 V or VIL = 0 V
PDISS
VIH = 5 V or VIL = 0 V, VDD = 5 V
PSSR
VDD = +5 V ± 10%, Code = Midscale
3
±0.01
BW
THDW
tS
eN_WB
RAB = 10 kΩ/50 kΩ/100 kΩ,
Code = 0x40
VA =1 V rms, f = 1 kHz, RAB = 10 kΩ
VA = 5 V ±1 LSB Error Band
RWB = 5 kΩ, RS = 0
600/100/40
0.05
2
9
Max
+1
+2
+20
300
+1
+1
0
+1
0
+1
VDD
0.8
0.6
±1
5.5
8
40
±0.02
Unit
LSB
LSB
%
ppm/°C
Ω
LSB
LSB
ppm/°C
LSB
LSB
LSB
LSB
V
pF
pF
nA
V
V
V
V
µA
pF
V
µA
µW
%/%
kHz
%
µs
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 VA = 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 and W have no limitations on polarity with respect to each other.
6 Guaranteed by design and not subject to production test.
7 PDISS is calculated from (IDD × VDD). CMOS logic level inputs result in minimum power dissipation.
8 All dynamic characteristics use VDD = 5 V.
Rev. 0 | Page 4 of 20
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