MAX5161LEZT+T
更新时间:2024-09-18 18:01:35
品牌:MAXIM
描述:Digital Potentiometer, 1 Func, 50000ohm, Increment/decrement Control Interface, 32 Positions, PDSO6, SOT-23, 6 PIN
MAX5161LEZT+T 概述
Digital Potentiometer, 1 Func, 50000ohm, Increment/decrement Control Interface, 32 Positions, PDSO6, SOT-23, 6 PIN 数字电位器 数字电位计
MAX5161LEZT+T 规格参数
是否无铅: | 不含铅 | 是否Rohs认证: | 符合 |
生命周期: | Active | 零件包装代码: | SOT-23 |
包装说明: | TSSOP, TSOP6,.11,37 | 针数: | 6 |
Reach Compliance Code: | compliant | ECCN代码: | EAR99 |
HTS代码: | 8542.39.00.01 | 风险等级: | 1.11 |
控制接口: | INCREMENT/DECREMENT | 转换器类型: | DIGITAL POTENTIOMETER |
JESD-30 代码: | R-PDSO-G6 | JESD-609代码: | e3 |
长度: | 2.9 mm | 湿度敏感等级: | 1 |
功能数量: | 1 | 位置数: | 32 |
端子数量: | 6 | 最高工作温度: | 85 °C |
最低工作温度: | -40 °C | 封装主体材料: | PLASTIC/EPOXY |
封装代码: | TSSOP | 封装等效代码: | TSOP6,.11,37 |
封装形状: | RECTANGULAR | 封装形式: | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
峰值回流温度(摄氏度): | 260 | 电源: | 3/5 V |
认证状态: | Not Qualified | 电阻定律: | LINEAR |
最大电阻容差: | 25% | 最大电阻器端电压: | 5 V |
最小电阻器端电压: | 座面最大高度: | 1.1 mm | |
子类别: | Digital Potentiometers | 标称供电电压: | 5 V |
表面贴装: | YES | 标称温度系数: | 50 ppm/°C |
温度等级: | INDUSTRIAL | 端子面层: | Matte Tin (Sn) |
端子形式: | GULL WING | 端子节距: | 0.95 mm |
端子位置: | DUAL | 处于峰值回流温度下的最长时间: | NOT SPECIFIED |
标称总电阻: | 50000 Ω | 宽度: | 1.6 mm |
Base Number Matches: | 1 |
MAX5161LEZT+T 数据手册
通过下载MAX5161LEZT+T数据手册来全面了解它。这个PDF文档包含了所有必要的细节,如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载19-1435; Rev 2a; 2/01
Low-Power Digital Potentiometers
General Description
Features
The MAX5160/MAX5161 linear-taper digital potentiome-
ters perform the same function as a mechanical poten-
tiometer or a variable resistor. They consist of a fixed
resistor and a wiper contact with 32 tap points that are
digitally controlled by three lines for the 8-pin MAX5160
or by two lines for the 6-pin MAX5161.
o 32 Tap Positions
o 50kΩ, 100kΩ, and 200kΩ Resistance Values
o 400Ω Wiper Resistance
o
25% Resistance Tolerance
o 3-Wire Serial Data Input
These parts are ideal for applications requiring digitally
controlled resistors. Three resistance values are avail-
able for each part type: 50kΩ, 100kΩ, and 200kΩ. A
nominal resistor temperature coefficient of 50ppm/°C
end-to-end and only 5ppm/°C ratiometric makes the
MAX5160 ideal for applications requiring a low-temper-
ature-coefficient variable resistor, such as low-tempco,
adjustable-gain circuit configurations.
o
o
1LSB DNL
0.5LSB INL
o 100nA Supply Current
o +2.7V to +5.5V Single-Supply Operation
o Power-On Reset: Wiper Goes to Midscale
The MAX5160 is available in an 8-pin µMAX package,
and the MAX5161 is available in a 6-pin SOT23 pack-
age. Both devices are guaranteed over the extended-
industrial temperature range (-40°C to +85°C).
(position 16)
o
2kV ESD Protection
o Small-Footprint Packages
6-Pin SOT23 (MAX5161)
8-Pin µMAX (MAX5160)
Applications
LCD Screen Adjustment
Volume Control
o Glitchless Switching Between the Resistor Taps
Mechanical Potentiometer Replacement
Ordering Information
PIN-
PACKAGE
R
(kΩ)
Selector Guide
PART
TEMP. RANGE
R
(kΩ)
TOP
MARK
MAX5160NEUA
MAX5160MEUA
MAX5160LEUA
MAX5161NEZT
MAX5161MEZT
MAX5161LEZT
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
8 µMAX
8 µMAX
8 µMAX
6 SOT23
6 SOT23
6 SOT23
200
100
50
PART
MAX5160NEUA
MAX5160MEUA
MAX5160LEUA
MAX5161NEZT
MAX5161MEZT
MAX5161LEZT
—
—
200
100
50
200
100
50
—
AAAC
AAAB
AAAA
200
100
50
Functional Diagram
H
Pin Configurations
V
DD
TOP VIEW
MAX5160
MAX5161
GND
L
H
1
2
3
6
5
4
V
DD
INC
U/D
H
1
2
3
4
8
7
6
5
V
DD
CS
INC
U/D
MAX5161
CS
L
UP/DN
COUNTER
POSITION
DECODER
W
INC
U/D
MAX5160
GND
W
GND
µMAX
L
SOT23-6
________________________________________________________________Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Low-Power Digital Potentiometers
ABSOLUTE MAXIMUM RATINGS
DD
V
to GND..............................................................-0.3V to +6V
Continuous Power Dissipation (T = +70°C)
A
CS, INC, U/D to GND ...............................................-0.3V to +6V
H, L, W to GND.......................................... -0.3V to (V + 0.3V)
Input and Output Latchup Immunity .............................. 200mA
Maximum Continuous Current into H, L, and W
MAX516_ _ E_ _............................................................... 1mA
6-Pin SOT23 (derate 6.25mW/°C above +70°C)...........500mW
8-Pin µMAX (derate 4.1mW/°C above +70°C)..............330mW
Operating Temperature Range .......................... -40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300° C
DD
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
= +2.7V to +5.5V, V = V , V = 0, T = T
to T
. Typical values are at V = +5V, T = +25°C, unless otherwise noted.)
DD A
DD
H
DD
L
A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC PERFORMANCE
Resolution
3
%
LSB
Integral Nonlinearity (Note 1)
INL
1/2
1
Differential Nonlinearity (Note 1)
End-to-End Resistor Tempco
Ratiometric Resistor Tempco
Full-Scale Error
DNL
LSB
TC
50
5
ppm/°C
ppm/°C
LSB
R
-0.1
+0.1
1700
Zero-Scale Error
LSB
Wiper Resistance
R
C
400
10
Ω
pF
W
Wiper Capacitance
W
MAX516_NE_ _
MAX516_ME_ _
MAX516_LE_ _
150
75
200
100
50
250
125
62.5
End-to-End Resistance
HL
kΩ
37.5
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
Input Capacitance
0.7 ✕ V
V
V
V
DD
IH
0.3 ✕ V
DD
V
IL
1
µA
pF
5
TIMING CHARACTERISTICS (Figure 6)
t
t
25
0
ns
ns
CS to INC Setup Time
CS to INC Hold Time
INC Low Period
CI
IC
t
25
25
0
ns
IL
IH
ID
DI
t
t
t
ns
INC High Period
U/D to INC Hold
ns
50
ns
U/D to INC Setup
Wiper-Settling Time
INC Frequency
t
IW
1
µs
f
7
MHz
IMAX
POWER SUPPLIES
Supply Voltage
V
2.7
5.5
10
V
DD
V
V
= +5V
= +2.7V
0.6
135
µA
nA
CS = INC = U/D =
DD
Supply Current
I
DD
V
DD
or GND
DD
Note 1: For the MAX5160, linearity is defined in terms of H to L code-dependent resistance.
_______________________________________________________________________________________
2
Low-Power Digital Potentiometers
Typical Operating Characteristics
(V
= +5V, T = +25°C, unless otherwise noted.)
DD
A
WIPER RESISTANCE
vs. WIPER VOLTAGE
END-TO-END RESISTANCE % CHANGE
vs. TEMPERATURE
1,000
800
600
400
200
0
0.06
0.04
50kΩ
R
= 574.0804
WMAX
200kΩ
0.02
100kΩ
0
V
DD
= +2.7V
100kΩ
200kΩ
-0.02
-0.04
-0.06
-0.08
-0.10
-0.12
-0.14
-0.16
50kΩ
V
DD
= +5V
0
1
2
3
4
5
-40-30 -20 -10 0 10 20 30 40 50 60 70 80 90
WIPER VOLTAGE (V)
TEMPERATURE (°C)
END-TO-END RESISTANCE
vs. TAP POSITION
END-TO-END RESISTANCE
vs. TAP POSITION
225
200
175
150
125
100
75
110
100
90
80
70
60
50
40
30
20
10
0
200kΩ
100kΩ
50
25
0
1
5
9
13 17 21 25 29 33
TAP POSITION
1
5
9
13 17 21 25 29 33
TAP POSITION
END-TO-END RESISTANCE
vs. TAP POSITION
50
50kΩ
45
40
35
30
25
20
15
10
5
0
1
5
9
13 17 21 25 29 33
TAP POSITION
_______________________________________________________________________________________
3
Low-Power Digital Potentiometers
Typical Operating Characteristics (continued)
(V
= +5V, T = +25°C, unless otherwise noted.)
DD
A
SUPPLY CURRENT vs. TEMPERATURE
TAP-TO-TAP SWITCHING TRANSIENT
0.9
0.8
0.7
0.6
OUTPUT
W
50mV/div
V
DD
= +5V
0.5
0.4
0.3
0.2
0.1
0
0V
0V
INC
2V/div
V
= +2.7V
DD
5µs/div
-40 -20
0
20
40
60
80 100
TEMPERATURE (°C)
Pin Description
PIN
NAME
FUNCTION
MAX5160
MAX5161
Wiper Increment Control Input. With CS low, a high-to-low transition increments
(U/D high) or decrements (U/D low) the wiper position.
1
5
INC
Up/Down Control Input. With CS low, a high-to-low INC transition increments
(U/D high) or decrements (U/D low) the wiper position.
2
4
U/D
3
4
5
6
7
8
2
3
H
GND
W
High Terminal of Resistor
Ground
—
1
Wiper Terminal of Resistor
L
Low Terminal of Resistor
—
6
CS
Chip-Select Input. Drive low to change the wiper position through INC and U/D.
V
DD
Power Supply
4
_______________________________________________________________________________________
Low-Power Digital Potentiometers
a variable resistor (a potentiometer with the wiper and
one end terminal shorted together).
Detailed Description
The MAX5160/MAX5161 consist of resistor arrays with
thirty-one resistive elements. Thirty-two tap points are
accessible to the wiper along the resistor string
between H and L. Logic inputs CS, U/D, and INC
determine the position of the wiper. With CS low and
U/D high, a high-to-low transition on INC increments the
internal counter, increasing the resistance between W
and L. When both CS and U/D are low, a high-to-low
INC transition decrements the internal counter, decreas-
ing the resistance between W and L. At either end
(maximum or minimum positions), additional transitions in
the direction of the end points will not change the counter
value (the counter will not wrap around).
The MAX5160/MAX5161 feature power-on reset circuit-
ry that sets the wiper position to midscale at power-up.
Applications Information
The MAX5160/MAX5161 are intended for circuits
requiring digitally controlled adjustable voltage or
adjustable gain, such as LCD contrast control, where
voltage biasing adjusts the display contrast.
Controlling a Switch-Mode
LCD Bias Generator
Figure 1 shows an application where the MAX5161 is
used with a MAX1771 to make an adjustable positive
LCD-bias circuit. The output of the MAX1771 is a posi-
tive voltage that is digitally controlled through the
MAX5160/MAX5161. Similarly, Figure 2 shows the
application of the MAX5161 in a digitally controlled
negative LCD-bias circuit along with the MAX774/
MAX775/MAX776.
The H and L terminals of the MAX5160 are similar to the
two end terminals of a mechanical potentiometer. The
tap W is equivalent to the variable tap (wiper) of the
potentiometer.
The MAX5161 is similar to the MAX5160 except that CS
internally connects to ground and the wiper terminal (W)
is shorted to the high terminal (H). The MAX5161 acts as
V
IN
= 5V
V
IN
C1
C2
C1
150µF
C2
5
1
3
2
68µF
0.1µF
0.1µF
OUT
V+
2
R3
L1
V+
R2
0.07Ω
22µH
MAX774
MAX775
MAX776
SHDN
V
= 12V
AT 0.5A
D1
OUT
5
4
6
REF
6
7
1N5817-22
CS
Q1
Si9435
P
C3
0.1µF
MAX5161
C4
300µF
MAX1771
1
8
FB
EXT
SHDN
AGND
EXT
CS
FB
N
V
OUT
R
VAR
MTD20N03HDL
1N5822/
MBR340
4
R1
R
SENSE
40mΩ
L1
22µH
REF
C4*
R2
C5
GND
8
3
C3
GND
7
0.1µF
R
VAR
MAX5161
* MAX774 = 330µF, 10V
MAX775, MAX776 = 120µF, 20V
R1
V
V
R2
R1
V
R2
R1 + R
VAR
OUT(MAX)
OUT(MIN)
V
REF
= 1.5V
=
,
=
V
REF
V
REF
V
V
R2
R1
OUT(MAX)
=
=
+ 1
- V
FB
REF
V
REF
≥ 5µA (FOR 2% GAIN-SETTING ACCURACY)
R1 + R
VAR
R2
OUT(MIN)
+ 1
(
)
V
REF
R1 + R
VAR(MAX)
Figure 1. Adjustable Positive LCD Bias
Figure 2. Adjustable Negative LCD Bias
_______________________________________________________________________________________
5
Low-Power Digital Potentiometers
Alternative Positive
Adjustable Gain
Figure 5 shows how to use the MAX5161 to digitally
adjust the gain of a noninverting op amp configuration.
Connect the MAX5161 in series with a resistor to ground
to form the adjustable gain control of a noninverting
amplifier. The MAX5160/MAX5161 have a low 5ppm/°C
ratiometric tempco that allows for a very stable adjust-
able gain configuration over temperature.
LCD Bias Control
Alternatively, use an op amp to provide buffering and
gain to the output of the MAX5160/MAX5161. Connect
the MAX5160 to the positive input of a noninverting op
amp (Figure 3) to select a portion of the input signal by
digitally controlling the wiper terminal. Figure 4 shows a
similar circuit for the MAX5161.
Serial Interface
Figure 6 is the serial-interface timing diagram.
+5V
+5V
+5V
+5V
MAX5161
H
MAX5160
H
INC
U/D
30V
30V
V
DD
INC
U/D
CS
W
V
GND
DD
V
OUT
V
OUT
GND
L
L
GAIN 6
GAIN 6
Figure 3. MAX5160 Positive LCD Bias Control
Figure 4. MAX5161 Positive LCD Bias Control
V
CC
V
CC
V
IN
V
IN
V
OUT
V
OUT
+5V
H
INC
U/D
W
L
H
MAX5161
V
DD
GND
L
MAX5160
a)
b)
Figure 5. Adjustable Gain Circuit: a) MAX5161; b) MAX5160
_______________________________________________________________________________________
6
Low-Power Digital Potentiometers
CS
t
CI
t
IC
IH
t
IL
INC
t
t
DI
U/D
t
t
ID
IW
W
Figure 6. Serial-Interface Timing Diagram
Chip Information
Truth Table
R
CS
U/D
INC
W
TRANSISTOR COUNT: 969
H
L
L
L
L
xx-X
L
X
↑
↑
↓
↓
O
O
O
—
+
H
L
H
X = Don’t care
O = Previous state
+ = Increment
— = Decrement
↓ = High-to-Low Transition
↑ = Low-to-High Transition
_______________________________________________________________________________________
7
Low-Power Digital Potentiometers
Package Information
8
_______________________________________________________________________________________
Low-Power Digital Potentiometers
Package Information (continued)
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________9
© 2001 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX5161LEZT+T 替代型号
型号 | 制造商 | 描述 | 替代类型 | 文档 |
MAX5161LEZT-T | MAXIM | Digital Potentiometer, 1 Func, 50000ohm, Increment/decrement Control Interface, 32 Positio | 完全替代 | |
MAX5161LEZT | MAXIM | DIGITAL POTENTIOMETER|TSOP|6PIN|PLASTIC | 功能相似 |
MAX5161LEZT+T 相关器件
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MAX5161MEZT-T | MAXIM | 暂无描述 | 获取价格 | |
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