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參數(shù)資料
| 型號： | MAX5438EUB |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | 256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers |
| 中文描述： | 100K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 128 POSITIONS, PDSO10 |
| 封裝： | MO-187CBA, MICRO, SOP-10 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 800K |
| 代理商： | MAX5438EUB |
General Description
The MAX5436–MAX5439 are 128-tap high-voltage (±5V
to ±15V) digital potentiometers in packages that are half
the size of comparable devices in 8-pin SO. They perform
the same function as mechanical potentiometers, but
replace the mechanics with a simple digital interface. The
digital logic is powered by a separate single +2.7V to
+5.25V supply voltage (V
CC
). The resistor string uses its
own analog supplies (V
DD
and V
SS
) that require
V
DD
- V
SS
to be greater than 9V and less than 31.5V. This
allows for greater flexibility in voltage ranges that can be
used with these devices. Examples of analog supply
ranges include not only dual voltages of ±5V to ±15V, but
single-supply voltages, such as +10V, +15V, +30V, -30V,
and more, as long as the ranges of V
DD
- V
SS
and V
CC
-
V
SS
are met.
The MAX5437/MAX5439 include an on-chip, high-
voltage, uncommitted amplifier, providing additional
reductions in board space and cost. Other features
include low 35ppm/°C end-to-end and 5ppm/°C ratio-
metric resistor temperature coefficients, a 3-wire SPI/
QSPI/MICROWIRE-compatible serial interface, and
a power-on reset to midscale.
The MAX5436/MAX5438 are available in 10-pin μMAX
packages. The MAX5437/MAX5439 are available in 14-
pin TSSOP package. Each device is guaranteed over
the extended temperature range of -40°C to +85°C.
Applications
LCD Screen Contrast Adjustment
Data-Acquisition Systems
Mechanical Potentiometer Replacement
Low-Drift Programmable Gain Amplifier
Audio Volume Control
Features
+10V to +30V Single-Supply Operation
-28V to -10V Single Negative Supply Operation
±5V to ±15V Dual-Supply Operation
128 Tap Positions
Uncommitted High-Voltage Amplifier
(MAX5437/MAX5439)
Low Temperature Coefficient
35ppm/°C (End-to-End)
5ppm/°C (Ratiometric)
Small-Footprint Packages
10-Pin μMAX (MAX5436/MAX5438)
14-Pin TSSOP (MAX5437/MAX5439)
Glitchless Switching Between the Resistor Taps
3-Wire SPI/QSPI/MICROWIRE-Compatible Serial
Interface
50k
/100k
End-to-End Resistances
Power-On Reset: Wiper Goes to Midscale
(Position 64)
Ordering Information
M
±15V, 128-Tap, Low-Drift Digital Potentiometers
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
1
2
3
4
5
10
9
8
7
6
V
CC
L
W
H
MAX5436
MAX5438
μ
MAX
TOP VIEW
V
DD
14
13
12
11
10
9
8
1
2
3
4
5
6
7
MAX5437
MAX5439
TSSOP
GND
CS
DIN
SCLK
V
SS
V
CC
L
W
H
SHDN
CS
DIN
SCLK
V
DD
IN+
IN-
OUT
V
SS
GND
Pin Configurations
19-2657; Rev 3; 9/04
PART
TEMP RANGE
PIN-
PACKAGE
RESISTANCE
(k
)
MAX5436
EUB
MAX5437
EUD
MAX5438
EUB
MAX5439
EUD
-40°C to +85°C 10 μMAX
-40°C to +85°C 14 TSSOP
-40°C to +85°C 10 μMAX
-40°C to +85°C 14 TSSOP
50
50
100
100
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5438EUB+ | 功能描述:數(shù)字電位計 IC 128-Tap Low-Drift RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5438EUB+T | 功能描述:數(shù)字電位計 IC 128-Tap Low-Drift RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5438EUB-T | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5439EUD | 功能描述:數(shù)字電位計 IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
| MAX5439EUD+ | 功能描述:數(shù)字電位計 IC 128-Tap Low-Drift RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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