công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
AD8802ARZ bảng dữ liệu(PDF) 1 Page - Analog Devices |
|
AD8802ARZ bảng dữ liệu(HTML) 1 Page - Analog Devices |
1 / 16 page FUNCTIONAL BLOCK DIAGRAM CS CLK SDI SHDN AD8802/AD8804 D7 D0 ADDR DEC EN D11 D10 D9 D8 D7 SER REG DD0 DAC REG #1 R VDD D7 D0 DAC 12 DAC REG #12 R DAC 1 8 O1 O2 O4 O5 O6 O7 O8 O9 O10 O11 O12 VREFH GND RS (AD8802 ONLY) VREFL (AD8804 ONLY) O3 REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a 12 Channel, 8-Bit TrimDACs with Power Shutdown AD8802/AD8804 © Analog Devices, Inc., 1995 One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703 GENERAL DESCRIPTION The 12-channel AD8802/AD8804 provides independent digitally- controllable voltage outputs in a compact 20-lead package. This potentiometer divider TrimDAC® allows replacement of the mechanical trimmer function in new designs. The AD8802/ AD8804 is ideal for dc voltage adjustment applications. Easily programmed by serial interfaced microcontroller ports, the AD8802 with its midscale preset is ideal for potentiometer replacement where adjustments start at a nominal value. Appli- cations such as gain control of video amplifiers, voltage con- trolled frequencies and bandwidths in video equipment, geometric correction and automatic adjustment in CRT com- puter graphic displays are a few of the many applications ideally suited for these parts. The AD8804 provides independent con- trol of both the top and bottom end of the potentiometer divider allowing a separate zero-scale voltage setting determined by the VREFL pin. This is helpful for maximizing the resolution of devices with a limited allowable voltage control range. Internally the AD8802/AD8804 contains 12 voltage-output digital-to-analog converters, sharing a common reference- voltage input. TrimDAC is a registered trademark of Analog Devices, Inc. FEATURES Low Cost Replaces 12 Potentiometers Individually Programmable Outputs 3-Wire SPI Compatible Serial Input Power Shutdown <55 Watts Including IDD & IREF Midscale Preset, AD8802 Separate VREFL Range Setting, AD8804 +3 V to +5 V Single Supply Operation APPLICATIONS Automatic Adjustment Trimmer Replacement Video and Audio Equipment Gain and Offset Adjustment Portable and Battery Operated Equipment Each DAC has its own DAC latch that holds its output state. These DAC latches are updated from an internal serial-to- parallel shift register that is loaded from a standard 3-wire serial input digital interface. The serial-data-input word is decoded where the first 4 bits determine the address of the DAC latches to be loaded with the last 8 bits of data. The AD8802/ AD8804 consumes only 10 µA from 5 V power supplies. In ad- dition, in shutdown mode reference input current consumption is also reduced to 10 µA while saving the DAC latch settings for use after return to normal operation. The AD8802/AD8804 is available in the 20-pin plastic DIP, the SOIC-20 surface mount package, and the 1 mm thin TSSOP-20 package. |
Số phần tương tự - AD8802ARZ |
|
Mô tả tương tự - AD8802ARZ |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất 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 |