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參數(shù)資料
| 型號(hào)： | DS1809-100+ |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 2/9頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DALLASTAT 100K 8-DIP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 系列： | Dallastat™ |
| 接片： | 64 |
| 電阻（歐姆）： | 100k |
| 電路數(shù)： | 1 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 750 ppm/°C |
| 存儲(chǔ)器類型： | 非易失 |
| 接口： | 上/下 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 8-PDIP |
| 包裝： | 管件 |
DS1809
2 of 9
The DS1809 is available in standard 10 k
, 50 k, and 100 kresistor versions. The DS1809 is
provided as an industrial temperature grade part only. Available packaging for the DS1809 include an 8-
lead (300-mil) DIP an 8-lead (150-mil) SOIC, and an 8-lead (118-mil)
SOP.
BLOCK DIAGRAM Figure 1
OPERATION
The DS1809 Dallastat is a digitally controlled, nonvolatile potentiometer. A block diagram of the
DS1809 is shown in Figure 1. The DS1809 is a linear potentiometer providing 64-uniform wiper
positions over the entire resistor range including the end-terminals. All three potentiometer terminals of
the device are accessible. These terminals include RH, RL, and RW. RH and RL are the end-terminals of the
potentiometer. These terminals will have a constant resistance between them as defined by the
potentiometer value chosen: 10 k
, 50 k, or the 100 kversion. Functionally, RH and RL are
interchangeable. The wiper terminal, RW, is the multiplexed terminal and can be set to one of the 64 total
positions that exist on the resistor ladder including the RH and RL terminals.
Control of the wiper (RW) position setting is accomplished via the two inputs UC and DC. The UC and
DC control inputs, when active, determine the direction on the resistor array that the wiper position will
move. The UC (up control) control input is used to move the wiper position towards the RH terminal. The
DC (down control) control input is used to move wiper position towards the RL terminal.
The control inputs UC and DC are active low inputs that interpret input pulse widths as the means of
controlling wiper movement. Internally, these inputs are pulled up to VCC via a 100 kresistance. A
transition from a high-to-low on these inputs is considered the beginning of pulse input activity.
A single pulse on the UC or DC input is defined as being greater than 1 millisecond but lasting no longer
that second. This type pulse input will cause the wiper position of the Dallastat to move one position.
Multiple pulse inputs (repetitive pulse inputs) can be used to step through each wiper position of the
device. The requirement for a repetitive pulse train on the UC or DC inputs is that pulses must be
separated by a minimum high time of 1 millisecond. If this is not the case the Dallastat will ignore that
pulse input.
A continuous pulse input (“push and hold”) is defined as lasting longer that second. A continuous pulse
input will cause the wiper position to move one position every 100 milliseconds following the initial -
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1809-100+ | 功能描述:數(shù)字電位計(jì) IC Dallastat 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 |
| DS1809-50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Potentiometer |
| DS1809M10 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| DS1809M100 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| DS1809M50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
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