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參數(shù)資料
| 型號： | DS1667S-10 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封裝： | SO-20 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 228K |
| 代理商： | DS1667S-10 |
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101999
FEATURES
§ Two digitally controlled 256-position
potentiometers
§ Serial port provides means for setting and
reading both potentiometers
§ Resistors can be connected in series to
provide additional resolution
§ Default wiper position on power up is 50%
§ Resistive elements are temperature-
compensated to +20% end to end
§ Two high-gain, wide bandwidth operational
amplifiers
§ Low power CMOS design
§ Applications include analog-to-digital and
digital-to-analog converters, variable
oscillators, and variable gain amplifiers
§ 20-pin DIP package or optional 20-pin SOIC
surface mount package
§ Operating temperature range
- Commercial: 0
°C to 70°C
§ Resistance values:
RESOLUTION
-3 dB POINT
DS1667-10:
10k 39 ohms
1.1 MHz
DS1667-50:
50k 195 ohms
200 kHz
DS1667-100:
100k 390 ohms
100 kHz
PIN ASSIGNMENT
PIN DESCRIPTION
VCC
- +5-Volt Supply
GND
- Ground
L0, L1
- Low End of Resistor
H0, H1
- High End of Resistor
W0, W1
- Wiper End of Resistor
VB
- Substrate Bias and OP
AMP Negative Supply
SOUT
- Wiper for Stacked
Configuration
RST
- Serial Port Reset Input
DQ
- Serial Port Input/Output
CLK
- Serial Port Clock Input
COUT
- Cascade Serial Port
Output
NINV0, NINVI
- Noninverting OP AMP
Input
INV0, INVI
- Inverting OP AMP Input
OUT0, OUT1
- OP AMP Outputs
DESCRIPTION
The DS1667 is a dual-solid state potentiometer that is adjustable by digitally selected resistive elements.
Each potentiometer is composed of 256 resistive elements. Between each resistive section of each
potentiometer are tap points accessible to the wiper. The position of the wiper on the resistive array is set
by an 8-bit register that controls which tap point is connected to the wiper output. Each 8-bit register can
be read or written by sending or receiving data bits over a 3-wire serial port. In addition, the resistors can
be stacked such that a single potentiometer of 512 sections results. When two separate potentiometers are
used, the resolution of the DS1667 is equal to the resistance value divided by 256. When the
DS1667
Digital Resistor with OP AMP
www.dalsemi.com
20-Pin DIP (300-mil) and 20-Pin SOIC
See Mech. Drawings Section
1
2
3
4
5
6
7
9
8
10
20
19
18
17
16
15
14
12
13
11
VCC
OUT0
SOUT
W0
H0
L0
COUT
INVI
DQ
NINVI
NINV0
INV0
VB
W1
H1
L1
RST
OUT1
CLK
GND
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1667S100 | 制造商:Maxim Integrated Products 功能描述: |
| DS1667S-100 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| DS1667S-50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| DS1667SN-10 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| DS1667SN-100 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
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