AN-893 AD7656/AD7657/AD7658 AD7656 16-/14-/12-BIT AD7657 AD7658 AN06509-0-3/07 - Datasheet Archive

 

One Technology Way P.O. B ox 9106 Norwood, MA 02062-9106 Tel: 781/329-4700 Fax: 781/326-8703 www.analog.com AD7656/AD7657/AD7658

 

AN-893 AN-893 One Technology Way P.O. B ox 9106 Norwood, MA 02062-9106 Tel: 781/329-4700 Fax: 781/326-8703 www.analog.com AD7656/AD7657/AD7658 AD7656/AD7657/AD7658 Claire Croke SEL B SEL C AD7656/AD7657/AD7658 AD7656/AD7657/AD7658 DOUT A SEL C DOUT B SEL A SEL B AD7656/AD7657/AD7658 AD7656/AD7657/AD7658 SEL A SEL B 3 4 AD7656 AD7656 SEL C DOUT A DOUT B DOUT C 2 DOUT BUF T/H T/H OUTPUT DRIVERS 16-/14-/12-BIT 16-/14-/12-BIT SAR V2 DOUT SEL CS SER/PAR VDRIVE STBY CONTROL LOGIC V1 DOUT DVCC VDRIVE DOUT A 16-/14-/12-BIT 16-/14-/12-BIT SAR VDRIVE SCLK OUTPUT DRIVERS BUF V3 V4 16-/14-/12-BIT 16-/14-/12-BIT SAR T/H T/H 16-/14-/12-BIT 16-/14-/12-BIT SAR T/H AD7656 AD7656 SEL B DOUT C DATA/ CONTROL LINES OUTPUT DRIVERS 16-/14-/12-BIT 16-/14-/12-BIT SAR T/H 2 06509-001 16-/14-/12-BIT 16-/14-/12-BIT SAR AD7656/AD7657/AD7658 AD7656/AD7657/AD7658 VSS AGND DGND AD7657 AD7657 NC DOUT AD7656 AD7656 VDRIVE VDRIVE 1 AD7656 AD7656 NC DOUT C NC = NO CONNECT RD WR V6 DOUT B SEL C OUTPUT DRIVERS BUF V5 DOUT B SER/PAR HS SEL A DOUT A 06509-002 CLK OSC REF CONVST B CONVST C AVCC SER/PAR HS SEL A DOUT A AD7656 AD7656 AD7658 AD7658 NC NC = NO CONNECT 3 AD7656 AD7656 VDRIVE AD7656 AD7656 DOUT AD7656 AD7656 VDRIVE H/S SEL AD7656 AD7656 SEL A SEL B SEL C A DOUT B DOUT C DOUT DOUT A DOUT C 06509-003 SER/PAR/SEL DOUT B SEL C AD7656 AD7656 SEL B DOUT DOUT SER/PAR HS SEL A DOUT A AD7656 AD7656 DOUT B SEL C SEL A SEL B DOUT C 06509-004 CONVST A VDD NC = NO CONNECT 4 Rev. 0 | Page 1 of 8 DOUT AD7656 AD7656 AN-893 AN-893 . 3 . 1 . 1 AD7656 AD7656 AD7656 AD7656 AD7657 AD7657 AD7658 AD7658 . 1 . 2 3/07- 0 Rev. 0 | Page 2 of 8 . 3 . 5 AN-893 AN-893 AD7656 AD7656 AD7656 AD7656 DOUT AD7656 AD7656 REF EN/DIS DCIN C DCIN B DCIN A DCEN DB11 DB12 DB13 DB15 REFBUF EN/DIS RESET RANGE STBY W/B W/B RD DB11 DB12 V1 V2 V3 V4 DOUT (DOUT A) DOUT (DOUT A DOUT B) 3 3 DB13 DOUT DOUT A V1, V2 DB15 AD7656 AD7656 REF EN/ DIS CONVST REFBUF EN/DIS RESET RANGE STBY DOUT B V3, V4 BUSY AD7656 AD7656 RD AD7656 AD7656 DCEN DCIN A DCIN B DCIN C DGND AD7656 AD7656 AD7656 AD7656 AD7656 AD7656 CONVST AD7656 AD7656 BUSY AD7656 AD7656 5) CS t2 MSB MSB CS SCLK t17 AD7656 AD7656 t17 SCLK MSB CS AD7656 AD7656 DOUT SCLK 5 CS 16 DOUT SCLK DOUT SCLK DOUT AD7656 AD7656 1 ( SCLK SCLK BUSY DOUT 32 SCLK DOUT MSB CS DOUT DOUT A V1, V2 DOUT DOUT DOUT B V3, V4 DOUT C V5, V6 CS tQUIET 2 2 DOUT DOUT A V1, V2, V5 ( DOUT B V3, V4, V6 DOUT DOUT A Rev. 0 | Page 3 of 8 SCLK DOUT DOUT 96 SCLK CS 1 CS 6) 48 AN-893 AN-893 BUSY t10 t1 tCONV tACQ t2 t17 tQUIET CS t19 SCLK DOUT A, DOUT B, DOUT C t18 t17 t16 DB15 5 t20 DB14 DB13 t21 DB1 06509-005 CONVST A, CONVST B, CONVST C DB0 DOUT CONVST A, CONVST B, CONVST C tACQ tCONV BUSY CS 32 16 SCLK tQUIET V1 V2 DOUT B V3 V4 V5 V6 DOUT C 6 AD7656 AD7656 Rev. 0 | Page 4 of 8 06509-006 DOUT A AN-893 AN-893 CONVERT CONVST x CONVST x DOUT A DCIN A DOUT A AD7656 AD7656 SCLK DOUT SEL A SEL B SEL C AD7656 AD7656 DCIN AD7656 AD7656 DOUT 7 9 Device 2 ( ) (DCEN ) Device 1 (DCEN ) 12 13 14 DCIN SEL A SEL B SEL C SCLK DCEN = 0 DEVICE NO. 2 ) CS DCEN = 1 DEVICE NO. 1 7 DOUT DIGITAL HOST CS SCLK AD7656 AD7656 CONVERT CONVST x CONVST x DOUT A DOUT B DCIN A DOUT A DCIN B DOUT B AD7656 AD7656 SCLK DOUT AD7656 AD7656 CS SCLK DCEN = 0 DEVICE NO. 2 CS DCEN = 1 DEVICE NO. 1 8 DOUT DATA IN1 DATA IN2 DIGITAL HOST CS SCLK 06509-008 SEL DCEN DOUT DCIN CS DATA IN1 AD7656 AD7656 CONVERT CONVST x DOUT A DOUT B DOUT C CONVST x DCIN A DOUT A DCIN B DOUT B DCIN C DOUT C AD7656 AD7656 SCLK AD7656 AD7656 CS SCLK DCEN = 0 DEVICE NO. 2 DCEN = 1 DEVICE NO. 1 9 Rev. 0 | Page 5 of 8 CS DOUT AD7656 AD7656 DATA IN1 DATA IN2 DATA IN3 DIGITAL HOST CS SCLK 06509-007 ( AD7656 AD7656 06509-009 DCEN AN-893 AN-893 10 8 CONVST BUSY AD7656 AD7656 CS Device 1 48 CS SCLK 3 4 6 1 2 5 16 SCLK Device 1 DOUT A DOUT B 1 2 5 Device 2 Device 1 DCIN A DCIN B SCLK Device 1 Device 2 Device 2 Device 1 0 AD7656 AD7656 48 DOUT B DOUT A DOUT SCLK DOUT 3 4 6 CONVST A, CONVST B, CONVST C BUSY CS 1 2 3 15 16 17 31 32 33 47 48 49 63 64 65 94 95 96 SCLK MSB V1 LSB V1 MSB V2 LSB V2 MSB V5 LSB V5 MSB V1 LSB V1 MSB V2 LSB V5 DEVICE 1, DOUT B MSB V3 LSB V3 MSB V4 LSB V4 MSB V6 LSB V6 MSB V3 LSB V3 MSB V4 LSB V6 DEVICE 2, DOUT A MSB V1 LSB V1 MSB V2 LSB V2 MSB V5 LSB V5 DEVICE 2, DOUT B MSB V3 LSB V3 MSB V4 LSB V4 MSB V6 LSB V6 10 Rev. 0 | Page 6 of 8 06509-010 DEVICE 1, DOUT A AN-893 AN-893 Rev. 0 | Page 7 of 8 AN-893 AN-893 ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. AN06509-0-3/07 AN06509-0-3/07(0) Rev. 0 | Page 8 of 8