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| 型号： | DS1854B-050 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC RES TEMP-CNTRL 50/50K 16BGA |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 810 |
| 接片： | 256 |
| 电阻（欧姆）： | 50k |
| 电路数： | 2 |
| 温度系数： | 标准值 50 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 95°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-LBGA，CSPBGA |
| 供应商设备封装： | 16-CSBGA（4x4） |
| 包装： | 托盘 |
DS1854
Dual Temperature-Controlled
Resistors with Two Monitors
______________________________________________ Maxim Integrated Products
1
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.
General Description
The DS1854 dual temperature-controlled nonvolatile
(NV) variable resistors with two monitors consists of two
50k
256-position linear variable resistors, two analog
monitor inputs (MON1, MON2), and a direct-to-digital
temperature sensor. The device provides an ideal
method for setting and temperature-compensating bias
voltages and currents in control applications using min-
imal circuitry. The variable resistor settings are stored in
EEPROM memory and can be accessed over the 2-wire
serial bus.
Applications
Optical Transceivers
Optical Transponders
Instrumentation and Industrial Controls
RF Power Amps
Diagnostic Monitoring
Features
Four Total Monitored Channels (Temperature,
VCC, MON1, MON2)
Two External Analog Inputs (MON1, MON2)
Internal Direct-to-Digital Temperature Sensor
Two 50k, Linear, 256-Position, Nonvolatile
Temperature-Controlled Variable Resistors
Resistor Settings Changeable Every 2°C
Access to Monitoring and ID Information
Configurable with Separate Device Addresses
Resistor Disable (Open-Circuit) Function
2-Wire Serial Interface
Two Buffers with TTL/CMOS-Compatible Inputs
and Open-Drain Outputs
Operates from a 3.3V or 5V Supply
SFF-8472 Compatible
Ordering Information
Rev 1; 2/06
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-PACKAGE
DS1854E-050
-40°C to +95°C 16 TSSOP
DS1854B-050
-40°C to +95°C 16-Ball CSBGA
A
TOP VIEW
B
C
D
1
16-BALL CSBGA (4mm x 4mm)
1.0mm PITCH
16 TSSOP
3
24
MON2
OUT1
IN2
RHIZ
L0
GND
WPEN
L1
H0
SDA
OUT2
H1
VCC
SCL
IN1
MON1
DS1854
SDA
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SCL
OUT1
IN1
OUT2
IN2
WPEN
GND
VCC
H1
L1
H0
L0
MON2
MON1
RHIZ
Pin Configurations
DS1854
SDA
1
2
3
4
5
6
7
8
16
0.1
F
15
14
13
12
11
10
9
SCL
OUT1
IN1
OUT2
IN2
WPEN
GND
VCC
H1
L1
H0
L0
MON2
MON1
RHIZ
GROUND TO
DISABLE WRITE
PROTECT
Rx POWER*
DIAGNOSTIC
INPUTS
0 TO 2.5V FS
TO LASER
MODULATION
CONTROL
TO LASER BIAS
CONTROL
DECOUPLING
CAP
Tx BIAS*
Tx DISABLE
*Rx POWER AND Tx BIAS CAN BE ARBITRARILY
ASSIGNED TO THE MON INPUTS
VCC
VCC = 3.3V
4.7k
4.7k
TX-FAULT
LOS
2-WIRE
INTERFACE
Typical Operating Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1854E-050 | 功能描述:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1855 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Dual Nonvolatile Digital Potentiometer and Secure Memory |
| DS1855-010+ | 制造商:Maxim Integrated Products 功能描述:DUAL NV POT & MEM 10/10K LEAD FREE - Rail/Tube |
| DS1855B-010 | 功能描述:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1855B-010/T&R | 制造商:Maxim Integrated Products 功能描述:IC RES TEMP-CNTRL 10/10K 16BGA |
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