DC CHARACTERISTICS RHEOSTAT MODE (Specifications Apply to All VRs)
R-DNL
R
WB
, V
A
= NC
Resistor Differential NL
2
2
Resistor Nonlinearity
R-INL
R
WB
, V
A
= NC
Nominal Resistor Tolerance
∆R
V
AB
= V
DD
, Wiper = No Connect, T
A
= 25°C
Resistance Temperature Coefficient
R
AB
/∆T
V
AB
= V
DD
, Wiper = No Connect
Wiper Resistance
3
R
W
I
W
= V
DD
/R, V
DD
= 3 V or 5 V
Nominal Resistance Match
∆R/R
O
CH 1 to 2, V
AB
= V
DD
, T
A
= 25°C
DC CHARACTERISTICS POTENTIOMETER DIVIDER MODE (Specifications Apply to All VRs)
Resolution
N
4
INL
R
AB
= 10 kΩ, 50 kΩ, or 100 kΩ
Integral Nonlinearity
INL
R
AB
= 1 MΩ
Differential Nonlinearity
4
DNL
Voltage Divider Temperature Coefficient
∆V
W
/∆T
Code = 40
H
Full-Scale Error
V
WFSE
Code = 7F
H
Zero-Scale Error
V
WZSE
Code = 00
H
RESISTOR TERMINALS
Voltage Range
5
Capacitance
6
A, B
Capacitance
6
W
Common-Mode Leakage
DIGITAL INPUTS AND OUTPUTS
Input Logic High
Input Logic Low
Input Current
Input Capacitance
6
POWER SUPPLIES
Power Single-Supply Range
Power Dual-Supply Range
Positive Supply Current
Negative Supply Current
Power Dissipation
7
Power Supply Sensitivity
DYNAMIC CHARACTERISTICS
6, 8, 9
Bandwidth –3 dB
V
A, B, W
C
A, B
C
W
I
CM
V
IH
V
IL
I
IL
C
IL
V
DD RANGE
V
DD/SS RANGE
I
DD
I
SS
P
DISS
PSS
BW_10K
BW_50K
BW_100K
BW_1M
THD
W
t
S
e
N_WB
7
–1
–2
–1
–1
0
V
SS
±
1/4
±
1/2
±
1/4
20
–0.5
0.5
+1
+2
+1
+0
1
V
DD
f = 1 MHz, Measured to GND, Code = 40
H
f = 1 MHz, Measured to GND, Code = 40
H
V
A
= V
B
= V
W
V
DD
= 5 V/3 V
V
DD
= 5 V/3 V
V
IN
= 0 V or 5 V
2.4/2.1
45
60
1
5
V
SS
= 0 V
V
IH
= 5 V or V
IL
= 0 V
V
SS
= –2.5 V, V
DD
= +2.7 V
V
IH
= 5 V or V
IL
= 0 V, V
DD
= 5 V
2.7
±
2.3
V
0.8/0.6 V
±
1
µA
pF
V
V
µA
µA
µW
%/%
kHz
kHz
kHz
kHz
%
µs
nV√Hz
ns
ns
ns
ns
ns
ns
ns
ns
ns
5.5
±
2.7
15
40
15
40
150 400
0.002 0.05
1000
180
78
7
0.005
2
14
Total Harmonic Distortion
V
W
Settling Time
Resistor Noise Voltage
R
AB
= 10 kΩ, Code = 40
H
R
AB
= 50 kΩ, Code = 40
H
R
AB
= 100 kΩ, Code = 40
H
R
AB
= 500 kΩ, Code = 40
H
V
A
= 1 V rms + 2 V dc, V
B
= 2 V dc, f = 1 kHz
R
AB
= 10 kΩ,
±
1 LSB Error Band
R
WB
= 5 kΩ, f = 1 kHz
30
20
20
10
30
20
30
20
40
INTERFACE TIMING CHARACTERISTICS (Applies to All Parts)
6, 10
Input Clock Pulsewidth
t
CH
, t
CL
Clock Level High or Low
CS
to CLK Setup Time
t
CSS
CS
Rise to CLK Hold Time
t
CSH
U/D to Clock Fall Setup Time
t
UDS
U/D to Clock Fall Hold Time
t
UDH
DACSEL to Clock Fall Setup Time
t
DSS
DACSEL to Clock Fall Hold Time
t
DSH
MODE to Clock Fall Setup Time
t
MDS
MODE to Clock Fall Hold Time
t
MDH
NOTES
1
Typicals represent average readings at 25°C, V
DD
= 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. See Figure 22 test circuit.
3
Wiper resistance is not measured on the R
AB
= 1 MΩ models.
4
INL and DNL are measured at V with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. V = V
W
A
DD
and V
B
= 0 V. DNL
specification limits of
±1
LSB maximum are guaranteed monotonic operating conditions. See Figure 21 test circuit.
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
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 for location of measured values. All input control voltages are specified with t = t = 2.5 ns (10% to 90% of +3 V) and timed from a voltage level
R
F
of 1.5 V. Switching characteristics are measured using both V
I would like to share with you a good English document. As portable devices become more and more popular, I think it is a hot topic to maintain a good balance between performance and power consumption...
The title of my graduation thesis is: Serial communication status monitoring. Can you tell me where the center is and what the purpose is? Is it to capture data? Do I need to analyze the data after ca...
#define DEFAULT_MIN_CONN_INTERVAL 0x0010// 0x0006 // 100 milliseconds 7.5ms #define DEFAULT_MAX_CONN_INTERVAL 0x0010// 0x0C80 // 4 seconds 4S I use BLE Device Monitor to upgrade on PC, and it takes to...
I am a novice in driver development and want to learn how to write FLASH drivers. How should I start? What do I need to know? What kind of preparations should I make? I would like to ask the seniors f...
stm32cubeMX graphical configuration content STM32CubeMX is part of the original STMCube initiative from st microelectronics, and STM32Cube includes STM32CubeMX. STM32CubeMX is a graphical software co...[Details]
I used STM32CubeMX V4.22.1 to generate a project including EHT and Lwip. The debugging has been abnormal. After careful inspection, the following problems were found: 1. The hardware uses LAN8720A, b...[Details]
On May 8,
Google
I/O 2018 Developer Conference was held as scheduled in Mountain View, California. In the second year of the full promotion of the "AI first" strategy, artificial intelligen...[Details]
I used the bit definition in my 51 program: bit flag. After defining it this way, I ran the program and downloaded it to the circuit board. I found that the flag was not the value I set, which led to...[Details]
The Vatican Secret Archives is one of the world's greatest historical collections, but many of its documents have never been transcribed. Recently, a project called Codice Ratio used a
combination...[Details]
Summary of STM32 peripheral DMA usage: 1. Select DAM mode according to your needs: (1) Circular mode—DMA_Mode = DMA_Mode_Circular (2) Normal mode—DMA_Mode = DMA_Mode_Normal 2. For Chanel3 of DMA1, t...[Details]
Interrupts and timers implement a 24-hour clock. The program is as follows: #include reg52.h #define PORTLEN P0 sbit bit_select = P2^0; sbit seg_select = P2^1; unsigned char src = {0x3f,0x06,0...[Details]
Not long ago, we discussed the disruptive trends that will change the future of display solutions and the changes that High Dynamic Range (HDR) can bring , which provides a more realistic...[Details]
Today, the country attaches great importance to the Internet of Things, and the Internet of Everything has become the vision of all people in related industries. However, at the same time, masterin...[Details]
As one of the four major Chinese cool alliances, ZTE Mobile undoubtedly has a relatively deep foundation. However, this mobile phone brand has gradually declined in recent years. Now it is hoping t...[Details]
On May 7, 2013, Jia Yueting, wearing a black T-shirt, announced the official launch of
LeTV
TV Super TV, which set the entire color TV industry on fire and forced traditional manufacturers ...[Details]
At the beginning of 2018, when interviewed by a reporter from China Business Weekly, Rong Yongkang, global vice president of Amazon
AWS
(cloud computing service) and executive director of G...[Details]
/*Write Chinese character LCD program The LCD screen is divided into 4 rows and 12 columns of Chinese characters, all using analog interface mode. /* CKW19264A interface program (analog mode) ;******...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
