AD5170 Analog Devices, AD5170 Datasheet - Page 4

• Manufacturer Part Number: AD5170
• Description: 256-Position Two-Time Programmable I2C Digital Potentiometer
• Manufacturer: Analog Devices

AD5170
ELECTRICAL CHARACTERISTICS—10 kΩ, 50 kΩ, 100 kΩ VERSIONS
Table 2. V
Parameter
DC CHARACTERISTICS—RHEOSTAT MODE
DC CHARACTERISTICS—POTENTIOMETER DIVIDER MODE (Specifications Apply to all VRs)
RESISTOR TERMINALS
DIGITAL INPUTS AND OUTPUTS
POWER SUPPLIES
DYNAMIC CHARACTERISTICS
1
2
3
4
5
6
7
8
9
10
11
Typical specifications represent average readings at 25°C and V
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.
V
INL and DNL are measured at V
DNL specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions.
Resistor terminals A, B, W have no limitations on polarity with respect to each other.
Guaranteed by design and not subject to production test.
Measured at the A terminal. The A terminal is open circuited in shutdown mode.
Different from operating power supply, power supply OTP is used one time only.
Different from operating current, supply current for OTP lasts approximately 400 ms for one time only.
P
All dynamic characteristics use V
AB
Resistor Differential Nonlinearity
Resistor Integral Nonlinearity
Nominal Resistor Tolerance
Resistance Temperature Coefficient
R
Differential Nonlinearity
Integral Nonlinearity
Voltage Divider Temperature
Full-Scale Error
Zero-Scale Error
Voltage Range
Capacitance
Capacitance
Shutdown Supply Current
Common-Mode Leakage
Input Logic High
Input Logic Low
Input Logic High
Input Logic Low
Input Current
Input Capacitance
Power Supply Range
OTP Supply Voltage
Supply Current
OTP Supply Current
Power Dissipation
Power Supply Sensitivity
Bandwidth –3 dB
Total Harmonic Distortion
V
Resistor Noise Voltage Density
DISS
WB
W
= V
Coefficient
(10 kΩ/50 kΩ/100 kΩ)
Settling Time
is calculated from (I
(Wiper Resistance)
DD
, Wiper (V
DD
= 5 V ± 10% or 3 V ± 10%; V
6
6
A, B
W
5
W
) = no connect.
10
6
8
9
DD
4
× V
4
DD
W
7
11
). CMOS logic level inputs result in minimum power dissipation.
3
with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. V
DD
2
= 5 V.
2
Symbol
R-DNL
R-INL
∆R
(∆R
R
DNL
INL
(∆V
V
V
V
C
C
I
I
V
V
V
V
I
C
V
V
I
I
P
PSS
BW
THD
t
e
A_SD
CM
IL
DD
DD_OTP
S
A
N_WB
WB
WFSE
WZSE
IH
IL
IH
IL
DD RANGE
DD_OTP
DISS
A
A,
W
IL
,V
AB
= V
AB
C
W
B
W
B
/R
/V
,V
DD
AB
W
W
)/∆T
)/∆T
; V
DD
B
= 0 V; –40°C < T
= 5 V.
Conditions
R
R
T
V
Code = 0x00, V
Code = 0x80
Code = 0xFF
Code = 0x00
f = 1 MHz, Measured to GND, Code = 0x80
f = 1 MHz, Measured to GND, Code = 0x80
V
V
V
V
V
V
V
V
V
V
R
R
R
V
V
R
WB
WB
A
AB
AB
AB
WB
AB
DD
A
DD
DD
DD
DD
IN
IH
IH
DD
A
A
= 25°C
Rev. 0 | Page 4 of 24
= V
=1 V rms, V
= 5 V, V
= 0 V or 5 V
= 5 V or V
= 5 V or V
, V
, V
= 10 kΩ, Code = 0x80
= 50 kΩ, Code = 0x80
= 100 kΩ, Code = 0x80
= V
= 5.5 V
= 5 V
= 5 V
= 3 V
= 3 V
= 5 V ± 10%, Code = Midscale
= 5 kΩ, R
A
A
B
DD
= No Connect
= No Connect
= V
, Wiper = No Connect
B
DD
= 0 V, ±1 LSB Error Band
/2
IL
IL
S
B
= 0
= 0 V
= 0 V, V
A
DD
= 0 V, f = 1 kHz, R
< +125°C; unless otherwise noted
= 5 V
DD
= 5 V
AB
= 10 kΩ
Min
–1
–2.5
–20
–1
–1
–2.5
0
GND
2.4
2.1
2.7
6
100
A
= V
Typ
±0.1
±0.25
35
160
±0.1
±0.3
15
–1
1
45
60
0.01
1
5
3.5
±0.02
600
100
40
0.1
2
9
DD
and V
1
B
Max
+1
+2.5
+20
200
+1
+1
0
2.5
V
1
0.8
0.6
±1
5.5
6.5
6
30
±0.08
= 0 V.
DD
Unit
LSB
LSB
%
ppm/°C
Ω
LSB
LSB
ppm/°C
LSB
LSB
V
pF
pF
µA
nA
V
V
V
V
µA
pF
V
V
µA
mA
µW
%/%
kHz
kHz
kHz
%
µs
nV/√Hz