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參數(shù)資料
| 型號(hào)： | DS1841X |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RES LOG NV I2C DGTL 10TDFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 接片： | 128 |
| 電阻（歐姆）： | 22k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 ±250 ppm/°C |
| 存儲(chǔ)器類型： | 非易失 |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 100°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 模具 |
| 供應(yīng)商設(shè)備封裝： | 模具 |
| 包裝： | 管件 |
DS1841
Temperature-Controlled, NV, I2C,
Logarithmic Resistor
Rev 2; 5/08
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
General Description
The DS1841 is a 7-bit, logarithmic, nonvolatile (NV) digi-
tal resistor that features an on-chip temperature sensor
and associated analog-to-digital converter (ADC). The
integrated temperature sensor indexes a 72-byte NV
lookup table (LUT) encompassing a temperature range
from -40°C to +100°C. The LUT output can drive the
resistor directly or be added to an NV initial-value regis-
ter (IVR) to drive the resistor. This flexible LUT-based
architecture allows the DS1841 to provide a tempera-
ture-compensated resistor output with arbitrary slope.
Programming is accomplished by an I2C-compatible
interface, which can operate at speeds of up to 400kHz.
Applications
Optical Transceivers
Linear and Nonlinear Compensation
Instrumentation and Industrial Controls
Mechanical Potentiometer Replacement
Features
22kΩ to 3.7kΩ Adjustable Logarithmic Resistor
with a 3.6k
Ω Fixed Resistor
128 Wiper Tap Points
On-Chip Temperature Sensor and ADC
72-Byte Lookup Table (LUT)
I2C-Compatible Serial Interface
Address Pins Allow Up to Four DS1841s to Share
the Same I2C Bus
Digital Supply of 2.7V to 5.5V
-40°C to +100°C Operating Range
3mm x 3mm, 10-Pin TDFN Package
13
4
10
8
7
SCL
RH
RW
SDA
*EP
*EXPOSED PAD
VCC
A1
2
9
N.C.
GND
5
6
RGND
A0
TDFN
(3.0mm
× 3.0mm × 0.8mm)
TOP VIEW
DS1841
Pin Configuration
Ordering Information
0.1
μF
3.3V
APD BIAS CONTROL APPLICATION
VCC
VOUT
FB
SDA
SCL
A1
A0
GND
100pF
RW
RGND
RH
VAPD
4.7k
Ω
4.7k
Ω
DC-DC
CONVERTER
DS1841
Typical Operating Circuit
+
Denotes a lead-free package.
T&R = Tape and reel.
*
EP = Exposed pad.
Registers and Modes are capitalized for clarity.
PART
TEMP RANGE
PIN-PACKAGE
DS1841N+
-40°C to +100°C
10 TDFN-EP*
DS1841N+T&R
-40°C to +100°C
10 TDFN-EP*
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1842 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:76V, APD, Bias Output Stage with Current Monitoring |
| DS1842A | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:76V, APD, Bias Output Stage with Current Monitoring |
| DS1842AN+ | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 76V APD Bias Output Stage w/Current Mtr RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| DS1842AN+T&R | 制造商:Maxim Integrated Products 功能描述:76V, APD, BIAS OUTPUT STAGE WITH CURRENT MONITORING - Tape and Reel |
| DS1842AN+TR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:76V, APD, Bias Output Stage with Current Monitoring |
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