Os motores de busca de Datasheet de Componentes eletrônicos |
|
AD7675 Folha de dados(PDF) 10 Page - Analog Devices |
|
AD7675 Folha de dados(HTML) 10 Page - Analog Devices |
10 / 28 page AD7674 Rev. A | Page 10 of 28 Pin No. Mnemonic Type1 Description 29 BUSY DO Busy Output. Transitions HIGH when a conversion is started. Remains HIGH until the conversion is complete and the data is latched into the on-chip shift register. The falling edge of BUSY could be used as a data ready clock signal. 30 DGND P Must Be Tied to Digital Ground. 31 RD DI Read Data. When CS and RD are both LOW, the interface parallel or serial output bus is enabled. 32 CS DI Chip Select. When CS and RD are both LOW, the interface parallel or serial output bus is enabled. CS is also used to gate the external clock. 33 RESET DI Reset Input. When set to a logic HIGH, reset the AD7674. Current conversion, if any, is aborted. If not used, this pin could be tied to DGND. 34 PD DI Power-Down Input. When set to a logic HIGH, power consumption is reduced and conversions are inhibited after the current one is completed. 35 CNVST DI Start Conversion. A falling edge on CNVST puts the internal sample/hold into the hold state and initiates a conversion. In Impulse mode (IMPULSE HIGH, WARP LOW), if CNVST is held LOW when the acquisition phase (t8) is complete, the internal sample/hold is put into hold and a conversion is immediately started. 36 AGND P Must Be Tied to Analog Ground. 37 REF AI Reference Input Voltage and Internal Reference Buffer Output. Apply an external reference on REF if the internal reference buffer is not used. Should be decoupled effectively with or without the internal buffer. 38 REFGND AI Reference Input Analog Ground. 39 IN– AI Differential Negative Analog Input. 40–42, 45 NC No Connect. 43 IN+ AI Differential Positive Analog Input. 46 REFBUFIN AI Reference Buffer Input Voltage. The internal reference buffer has a fixed gain. It outputs 4.096 V typically when 2.5 V is applied on this pin. 48 PDBUF DI Allows Choice of Buffering Reference. When LOW, buffer is selected. When HIGH, buffer is switched off. 49 (EPAD) Exposed Pad The exposed pad is internally connected to AGND. This connection is not required to meet the electrical performances however, for increased reliability of the solder joints, it is recommended that the pad be soldered to the analog ground of the system. 1AI = Analog Input; DI = Digital Input; DI/O = Bidirectional Digital; DO = Digital Output; P = Power. Table 7. Data Bus Interface Definitions MODE MODE1 MODE0 D0/OB/2C D1/A0 D2/A1 D[3] D[4:9] D[10:11] D[12:15] D[16:17] Description 0 0 0 R[0] R[1] R[2] R[3] R[4:9] R[10:11] R[12:15] R[16:17] 18-Bit Parallel 1 0 1 OB/2C A0:0 R[2] R[3] R[4:9] R[10:11] R[12:15] R[16:17] 16-Bit High Word 1 0 1 OB/2C A0:1 R[0] R[1] All Zeros 16-Bit Low Word 2 1 0 OB/2C A0:0 A1:0 All Hi-Z R[10:11] R[12:15] R[16:17] 8-Bit HIGH Byte 2 1 0 OB/2C A0:0 A1:1 All Hi-Z R[2:3] R[4:7] R[8:9] 8-Bit MID Byte 2 1 0 OB/2C A0:1 A1:0 All Hi-Z R[0:1] All Zeros 8-Bit LOW Byte 2 1 0 OB/2C A0:1 A1:1 All Hi-Z All Zeros R[0:1] 8-Bit LOW Byte 3 1 1 OB/2C All Hi-Z Serial Interface Serial Interface R[0:17] is the 18-bit ADC value stored in its output register. |
Nº de peça semelhante - AD7675 |
|
Descrição semelhante - AD7675 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes 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 |