參數(shù)資料
型號(hào)： DS1859
廠商： Maxim Integrated Products, Inc.
英文描述： Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors
中文描述： 雙路、溫控電阻，內(nèi)置校準(zhǔn)監(jiān)視器
文件頁數(shù)： 1/28頁
文件大小： 446K
代理商： DS1859
D
Dual, Temperature-Controlled Resistors with
Internally Calibrated 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 DS1859 dual, temperature-controlled, nonvolatile
(NV) variable resistors with three monitors consists of
two 50k
or two 20k
, 256-position, linear, variable
resistors; three analog monitor inputs (MON1, MON2,
MON3); and a direct-to-digital temperature sensor. The
device provides an ideal method for setting and tem-
perature-compensating bias voltages and currents in
control applications using minimal circuitry. The vari-
able 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
SFF-8472 Compatible
Five Monitored Channels (Temperature, V
CC
,
MON1, MON2, MON3)
Three External Analog Inputs (MON1, MON2, MON3)
That Support Internal and External Calibration
Scalable Dynamic Range for External Analog Inputs
Internal Direct-to-Digital Temperature Sensor
Alarm and Warning Flags for All Monitored
Channels
Two 50k
or Two 20k
, 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
2-Wire Serial Interface
Two Buffers with TTL/CMOS-Compatible Inputs and
Open-Drain Outputs
Operates from a 3.3V or 5V Supply
Operating Temperature Range of -40°C to +95°C
Ordering Information
PART
RESISTANCE
DS1859E-050
50k
DS1859E-020
20k
Rev 1; 11/03
PIN-PACKAGE
16 TSSOP
16 TSSOP
DS1859E-050/T&R
50k
16 TSSOP
(Tape-and-Reel)
DS1859E-020/T&R
20k
16 TSSOP
(Tape-and-Reel)
DS1859B-050
DS1859B-020
50k
20k
16-Ball CSBGA
16-Ball CSBGA
A
TOP VIEW
B
C
D
1
CSBGA (4mm x 4mm)
1.0mm PITCH
TSSOP
3
2
4
MON3
OUT1
IN2
MON1
L0
GND
WPEN
L1
H0
SDA
OUT2
H1
V
CC
SCL
IN1
MON2
DS1859
SDA
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SCL
OUT1
IN1
OUT2
IN2
WPEN
GND
V
CC
H1
L1
H0
L0
MON3
MON2
MON1
Pin Configurations
DS1859
SDA
1
2
3
4
5
6
7
8
16
0.1
μ
F
15
14
13
12
11
10
9
SCL
OUT1
IN1
OUT2
IN2
WPEN
GND
V
CC
H1
L1
H0
L0
MON3
MON2
MON1
GROUND TO
DISABLE WRITE
PROTECT
Rx POWER*
DIAGNOSTIC
INPUTS
TO LASER
MODULATION
CONTROL
TO LASER BIAS
CONTROL
DECOUPLING
CAP
Tx POWER*
Tx BIAS*
*SATISFIES SFF-8472 COMPATIBILITY
V
CC
V
CC
= 3.3V
4.7k
4.7k
Tx-FAULT
LOS
2-WIRE
INTERFACE
Typical Operating Circuit
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DS1859B-020 功能描述:數(shù)字電位計(jì) 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(chǔ)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
DS1859B-020+ 功能描述:數(shù)字電位計(jì) IC Dual Temp-Controlled Resistors 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(chǔ)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
DS1859B-020+T&R 制造商:Maxim Integrated Products 功能描述:DGTL POTENTIOMETER 256POS 20KOHM DUAL 16CSBGA - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RES TEMP 20/20K W/3MON 16-BGA
DS1859B-020+T&R 功能描述:數(shù)字電位計(jì) IC Dual Temp-Controlled Resistors 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(chǔ)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
DS1859B-020-W 功能描述:數(shù)字電位計(jì) 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(chǔ)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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