Changes to Ordering Guide ............................................................27
10/02—Revision 0: Initial Version
Rev. C | Page 2 of
28
AD5280/AD5282
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
DD
= +15 V, V
SS
= 0 V or V
DD
= +5 V, V
SS
= −5 V; V
LOGIC
= 5 V, V
A
= +V
DD
, V
B
= 0 V; −40°C < T
A
< +85°C, unless otherwise noted.
Table 1.
Parameter
Symbol
Conditions
DC CHARACTERISTICS–RHEOSTAT MODE
Resistor Differential NL
2
R-DNL
R
WB
, V
A
= NC
2
Resistor Nonlinearity
R-INL
R
WB
, V
A
= NC
Nominal Resistor Tolerance
3
ΔR
AB
T
A
= 25°C
6
V
AB
= V
DD
, wiper = no connect
Resistance Temperature
(∆R
AB
/R
AB
)/∆T x 10
Coefficient
Wiper Resistance
R
W
I
W
= V
DD
/R, V
DD
= 3 V or 5 V
DC CHARACTERISTICS–POTENTIOMETER DIVIDER MODE (specifications apply to all VRs)
Resolution
N
Integral Nonlinearity
4
INL
4
Differential Nonlinearity
DNL
Code = 0x80
(∆V
W
/V
W
)/∆T x 10
6
Voltage Divider Temperature
Coefficient
Full-Scale Error
V
WFSE
Code = 0xFF
Zero-Scale Error
V
WZSE
Code = 0x00
RESISTOR TERMINALS
Voltage Range
5
V
A
, V
B
, V
W
6
Capacitance A, B
C
A
, C
B
f = 5 MHz, measured to GND,
Code = 0x80
6
Capacitance W
C
W
f = 1 MHz, measured to GND,
Code = 0x80
Common-Mode Leakage
I
CM
V
A
= V
B
= V
W
Shutdown Current
I
SHDN
DIGITAL INPUTS AND OUTPUTS
Input Logic High
V
IH
Input Logic Low
V
IL
Output Logic High (O
1
, O
2
)
V
IH
Output Logic Low (O
1
, O
2
)
V
IL
Input Current
I
IL
V
IN
= 0 V or 5 V
Input Capacitance
6
C
IL
POWER SUPPLIES
Logic Supply
V
LOGIC
Power Single-Supply Range
V
DD RANGE
V
SS
= 0 V
Power Dual-Supply Range
V
DD/SS RANGE
Logic Supply Current
I
LOGIC
V
LOGIC
= 5 V
Positive Supply Current
I
DD
V
IH
= 5 V or V
IL
= 0 V
Negative Supply Current
I
SS
7
Power Dissipation
P
DISS
V
IH
= 5 V or V
IL
= 0 V, V
DD
= +5 V, V
SS
= −5
V
Power Supply Sensitivity
PSS
DYNAMIC CHARACTERISTICS
6, 8, 9
Bandwidth −3 dB
BW_20K
R
AB
= 20 kΩ, Code = 0x80
BW_50K
R
AB
= 50 kΩ, Code = 0x80
BW_200K
R
AB
= 200 kΩ, Code = 0x80
Min
−1
−1
−30
Typ
1
±1/4
±1/4
30
60
8
−1
−1
150
Max
+1
+1
+30
Unit
LSB
LSB
%
ppm/°C
Ω
Bits
LSB
LSB
ppm/°C
LSB
LSB
V
pF
pF
nA
μA
V
V
V
V
μA
pF
V
V
V
μA
μA
μA
mW
%/%
kHz
kHz
kHz
±1/4
±1/4
5
−1
+1
+1
+1
−2
0
V
SS
0
+2
V
DD
25
55
1
5
0.7 × V
L
0
4.9
V
L
+ 0.5
0.3 × V
L
0.4
±1
5
2.7
4.5
±4.5
0.1
0.1
0.2
0.002
310
150
35
V
DD
16.5
±5.5
60
1
1
0.3
0.01
Rev. C | Page 3 of
28
AD5280/AD5282
Parameter
Total Harmonic Distortion
V
W
Settling Time
Crosstalk
Symbol
THD
W
t
S
CT
Conditions
V
A
= 1 V rms, R
AB
= 20 kΩ
V
B
= 0 V dc, f = 1 kHz
V
A
= 5 V, V
B
= 5 V, ±1 LSB error band
V
A
= V
DD
, V
B
= 0 V, measure V
W1
with
adjacent RDAC making full-scale
code change
Measure V
W1
with V
W2
= 5 V p-p @ f =
10 kHz
R
WB
= 20 kΩ, f = 1 kHz
Min
Typ
1
0.014
5
15
Max
Unit
%
μs
nV-s
Analog Crosstalk
CTA
−62
18
dB
nV/√Hz
400
kHz
μs
μs
μs
μs
μs
0.9
300
300
μs
ns
ns
ns
μs
Resistor Noise Voltage
e
N_WB
INTERFACE TIMING CHARACTERISTICS (applies to all parts)
6, 10, 11
SCL Clock Frequency
f
SCL
t
1
t
BUF
Bus Free Time Between
Stop and Start
t
2
t
HD:STA
Hold Time (Repeated
After this period, the first clock pulse
Start)
is generated
t
LOW
Low Period of SCL Clock
t
3
t
HIGH
High Period of SCL Clock
t
4
t
5
t
SU:STA
Setup Time for Start
Condition
t
HD:DAT
Data Hold Time
t
6
t
SU:DAT
Data Setup Time
t
7
t
8
t
F
Fall Time of Both SDA and
SCL Signals
t
9
t
R
Rise Time of Both SDA and
SCL Signals
t
10
t
SU:STO
Setup Time for STOP
Condition
1
2
0
1.3
0.6
1.3
0.6
0.6
0
100
0.6
Typicals represent average readings at 25°C, V
DD
= +5 V, V
SS
=
−5
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.
3
V
AB
= V
DD
, wiper (V
W
) = no connect.
4
INL and DNL are measured at V
W
with the RDAC configured as a potentiometer divider similar to a voltage output DAC. V
A
= V
DD
and V
B
= 0 V. DNL specification limits
of
±1
LSB maximum are guaranteed monotonic operating conditions.
5
Resistor Terminal A, Resistor Terminal B, and Wiper Terminal W have no limitations on polarity with respect to each other.
6
Guaranteed by design and not subject to production test.
7
P
DISS
is calculated from (I
DD
× V
DD
). CMOS logic level inputs result in minimum power dissipation.
8
Bandwidth, noise, and settling time are dependent on the terminal resistance value chosen. The lowest R value results in the fastest settling time and highest
bandwidth. The highest R value results in the minimum overall power consumption.
9
All dynamic characteristics use V
DD
= 5 V.
10
See timing diagram (Figure 3) for location of measured values.
11
Standard I
2
C mode operation is guaranteed by design.
t
2
t
8
SCL
t
6
t
9
t
2
t
3
t
8
t
9
t
4
t
7
t
5
t
10
SDA
02929-042
t
1
P
S
S
P
Figure 3. Detailed Timing Diagram
Rev. C | Page 4 of
28
AD5280/AD5282
ABSOLUTE MAXIMUM RATINGS
T
A
= 25°C, unless otherwise noted.
Table 2.
Parameter
V
DD
to GND
V
SS
to GND
V
DD
to V
SS
V
A
, V
B
, V
W
to GND
A
X
to B
X
, A
X
to W
X
, B
X
to W
X
Intermittent
1
Continuous
V
LOGIC
to GND
Output Voltage to GND
Operating Temperature Range
Maximum Junction Temperature (T
JMAX
)
Storage Temperature Range
Reflow Soldering
Peak Temperature
Time at Peak Temperature
1
Rating
−0.3 V to +16.5 V
0 V to −7 V
16.5 V
V
SS
to V
DD
±20 mA
±5 mA
0 V to 7 V
0 V to 7 V
−40°C to +85°C
150°C
−65°C to +150°C
260°C
20 sec to 40 sec
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
θ
JA
is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages. Package
power dissipation = (T
JMAX
− T
A
)/ θ
JA .
Table 3. Thermal Resistance
Package Type
TSSOP-14
TSSOP-16
θ
JA
206
150
Unit
°C/W
°C/W
ESD CAUTION
Maximum terminal current is bound by the maximum current handling of
the switches, maximum power dissipation of the package, and maximum
applied voltage across any two of the A, B, and W terminals at a given
1. The 8 LEDs flash from top to bottom at 200ms intervals , then from bottom to top, repeat once, then all go out and flash 5 times at 300ms intervals . Repeat this process. #include reg52.h#include i...
After receiving the experimental kit, I immediately opened the outer shell and connected the battery. You have already taken a lot of unboxing pictures, so I won’t show you too much.
The entry-level m...
[i=s]This post was last edited by pcf2000 on 2021-12-30 17:18[/i]There is a product that uses HC32L110. Now I have found a problem: it has never happened before, but now the MCU can only download code...
Helping a friend ask a question, [align=left] I want to use AD8221 to amplify the different potentials received from 2 electrodes. To eliminate high frequency noise, I use an RC filter before the inst...
[i=s]This post was last edited by chen8710 on 2014-10-23 12:27[/i] [align=left][b][font=Arial, sans-serif][color=#000080][size=9pt]1. 2.2inch 320x240 Touch LCD (A)[/size][/color][/font][/b][/align][al...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
The Mobile Industry Processor Interface (MIPI) Alliance is an organization responsible for promoting the standardization of software and hardware in mobile devices. It has released the D-PHY specif...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[Details]
1 Introduction
Ultrasonic waves have strong directivity, slow energy consumption, and can propagate over long distances in a medium, so they are used for distance measurement. Ultrasonic detec...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
MCU
京公网安备 11010802033920号
EEWORLD
