Datasheet > DS1667

DS1667

更新时间： 2024-11-29 22:50:47

品牌	Logo	应用领域
达拉斯 - DALLAS		运算放大器
页数	文件大小	规格书
10页	364K
描述
Digital Resistor with OP AMP

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中文翻译

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DS1667 数据手册

DS1667

Digital Resistor with OP AMP

www.dalsemi.com

FEATURES

PIN ASSIGNMENT

ꢀ Two digitally controlled 256-position

potentiometers

NINV0

INV0

V_B

V_CC

OUT0

SOUT

ꢀ Serial port provides means for setting and

reading both potentiometers

ꢀ Resistors can be connected in series to

provide additional resolution

RST

CLK

OUT1

GND

COUT

ꢀ 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

INVI

NINVI

20-Pin DIP (300-mil) and 20-Pin SOIC

See Mech. Drawings Section

ꢀ 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:

PIN DESCRIPTION

V_CC

- +5-Volt Supply

GND

L0, L1

H0, H1

W0, W1

V_B

- Ground

- Low End of Resistor

- High End of Resistor

- Wiper End of Resistor

- Substrate Bias and OP

AMP Negative Supply

- Wiper for Stacked

Configuration

SOUT

RESOLUTION -3 dB POINT

DS1667-10: 10k 39 ohms

DS1667-50: 50k 195 ohms

DS1667-100: 100k 390 ohms 100 kHz

1.1 MHz

200 kHz

RST

CLK

COUT

- Serial Port Reset Input

- Serial Port Input/Output

- Serial Port Clock Input

- Cascade Serial Port

Output

NINV0, NINVI

- Noninverting OP AMP

Input

INV0, INVI

OUT0, OUT1

- Inverting OP AMP Input

- 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

potentiometers are stacked end to end, the resistance value is doubled while the resolution remains the

1 of 10

032000

12 3 4 5 6 7...10

中文翻译

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与DS1667相关器件

型号	品牌	获取价格	描述	数据表
DS1667-010	DALLAS	获取价格	Digital Resistor with OP AMP
DS1667-050	DALLAS	获取价格	Analog Circuit, 1 Func, CMOS, PDIP20, 0.300 INCH, DIP-20
DS1667-10	DALLAS	获取价格	Digital Resistor with OP AMP
DS1667-100	DALLAS	获取价格	Digital Resistor with OP AMP
DS1667-50	DALLAS	获取价格	Digital Resistor with OP AMP
DS1667N-10	ETC	获取价格	Voltage-Feedback Operational Amplifier
DS1667N-100	ETC	获取价格	Voltage-Feedback Operational Amplifier
DS1667N-50	ETC	获取价格	Voltage-Feedback Operational Amplifier
DS1667S-010	DALLAS	获取价格	Analog Circuit, 1 Func, CMOS, PDSO20, SOIC-20
DS1667S-10	ETC	获取价格	Voltage-Feedback Operational Amplifier

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