 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
MCP4902-E/ST 数据表(PDF) 1 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
MCP4902-E/ST 数据表(HTML) 1 Page - Microchip Technology |
|
|
1 / 48 page  2010 Microchip Technology Inc. DS22250A-page 1 MCP4902/4912/4922 Features • MCP4902: Dual 8-Bit Voltage Output DAC • MCP4912: Dual 10-Bit Voltage Output DAC • MCP4922: Dual 12-Bit Voltage Output DAC • Rail-to-Rail Output • SPI Interface with 20 MHz Clock Support • Simultaneous Latching of the Dual DACs with LDAC pin • Fast Settling Time of 4.5 µs • Selectable Unity or 2x Gain Output • External Voltage Reference Inputs • External Multiplier Mode • 2.7V to 5.5V Single-Supply Operation • Extended Temperature Range: -40°C to +125°C Applications • Set Point or Offset Trimming • Precision Selectable Voltage Reference • Motor Control Feedback Loop • Digitally-Controlled Multiplier/Divider • Calibration of Optical Communication Devices Related Products(1) Description The MCP4902/4912/4922 devices are dual 8-bit, 10-bit, and 12-bit buffered voltage output Digital-to-Analog Converters (DACs), respectively. The devices operate from a single 2.7V to 5.5V supply with SPI compatible Serial Peripheral Interface. The user can configure the full-scale range of the device to be VREF or 2 * VREF by setting the Gain Selection Option bit (gain of 1 of 2). The user can shut down both DAC channels by using SHDN pin or shut down the DAC channel individually by setting the Configuration register bits. In Shutdown mode, most of the internal circuits in the shutdown channel are turned off for power savings and the output amplifier is configured to present a known high resistance output load (500 k typical. The devices include double-buffered registers, allowing synchronous updates of two DAC outputs, using the LDAC pin. These devices also incorporate a Power-on Reset (POR) circuit to ensure reliable power- up. The devices utilize a resistive string architecture, with its inherent advantages of low DNL error and fast settling time. These devices are specified over the extended temperature range (+125°C). The devices provide high accuracy and low noise performance for consumer and industrial applications where calibration or compensation of signals (such as temperature, pressure and humidity) are required. The MCP4902/4912/4922 devices are available in the PDIP, SOIC and TSSOP packages. Package Types P/N DAC Resolution No. of ChannelS Voltage Reference (VREF) MCP4801 8 1 Internal (2.048V) MCP4811 10 1 MCP4821 12 1 MCP4802 8 2 MCP4812 10 2 MCP4822 12 2 MCP4901 8 1 External MCP4911 10 1 MCP4921 12 1 MCP4902 8 2 MCP4912 10 2 MCP4922 12 2 Note 1: The products listed here have similar AC/ DC performances. MCP4902: 8-bit dual DAC MCP4912: 10-bit dual DAC MCP4922: 12-bit dual DAC 14 1 2 3 4 13 12 11 10 9 8 5 6 7 14-Pin PDIP, SOIC, TSSOP VDD NC CS SCK VREFB NC NC SDI LDAC SHDN VOUTB VOUTA VREFA VSS 8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter with SPI Interface |
类似零件编号 - MCP4902-E/ST |
|
类似说明 - MCP4902-E/ST |
|
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
