TPL8002-25
- Adjustable Gain From 23.25 dB to –24 dB
- 64-Tap Positions With 0.75 dB Per Step
- Supports 8-MHz Analog Bandwidth
- Operating Range up to –4-V VEE/+4-V VDD
- 100-µA Maximum Static Supply Current
- ±30% End-to-End Resistance Tolerance
- Absolute Tolerance of ±0.3 dB
- Operating Temperature Range From
–40°C to 85°C - ESD Performance Tested Per JESD 22
- 2000-V Human-Body Model
(A114-B,Class II)
- 2000-V Human-Body Model
- APPLICATIONS
- Tandem Adjustable Feedback and Gain
Resistors for Operational Amplifers
- Tandem Adjustable Feedback and Gain
The TPL8002-25 is a programmable resistor device implementing two digital potentiometers with 64 wiper positions each that are tandem controlled through a 6-bit parallel interface. The device has fixed wiper resistances at the respective wiper contacts that tap the potentiometer resistors at a point determined by the binary code present at its digital inputs.
The resistive wiper tap terminals, RSW, of the TPL8002-25 are typically connected to the inverting inputs (–) of an external differential path inverting operational amplifier configuration, with the non-inverting inputs (+) connected through to ground. The applications differential input to the configuration is the devices RG terminals. The differential output of the external operational amplifiers is connected to the devices RF terminals, and thus becomes the differential output of the application configuration.
The resistance between the wiper contacts and the end points RG and RF of the TPL8002-25 provides a logarithmic gain/attenuation response of the configuration. With a digital code of decimal 0 (b000000) the configuration has an inverting maximum attenuation of –24 dB. With a digital code of decimal 32 (b100000) the configuration has inverting unity gain of 0.00 dB. With a digital code of decimal 63 (b111111) the configuration has an inverting maximum gain of +23.25 dB. The response of the configuration with respect to the digital code varies in fixed steps of 0.75 dB.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | Tandem 64 Tap Digital Potentiometer 数据表 | 2009年 8月 17日 | |||
应用简报 | Replacing Digital Potentiometers with Precision DACs | 2019年 7月 3日 |
设计和开发
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- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点