ADI’s ADGS1408/ADGS1409 is an analog multiplexer with eight single channels and four differential channels. The SPI interface controls the analog switch and has good error detection features such as cyclic redundancy check (CRC) error detection, invalid reading /Write address detection, and SCLK counting error detection. Support burst mode and daisy chain mode, working voltage ±15 V, ±5 V and +12 V, on-state resistance 4Ω at 25℃, mainly used in automatic test equipment (ATE), data acquisition system, communication system, sampling And hold system, audio signal routing, video signal routing, battery for energy system, and relay replacement. This article introduces the ADGS1408/ADGS1409 product highlights and main features, functional block diagrams, as well as the main features of EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ, circuit diagrams, bill of materials and PCB design drawings. The ADGS1408/ADGS1409 are analog multiplexers comprising eight single channels and four differential channels, respectively. A serial peripheral interface (SPI) controls the switches. The SPI interface has robust error detection features such as cyclic redundancy check (CRC) error detection, invalid read /write address detection, and SCLK count error detection. It is possible to daisy-chain multiple ADGS1408/ADGS1409 devices together. Daisy-chain mode enables the configuration of multiple devices with a minimal amount of digital lines. The ADGS1408/ADGS1409 can also operate in burst mode to decrease the time between SPI commands. iCMOS construction ensures ultra low power dissipation, making the devices ideally suited for portable and battery-powered instruments. Each switch conducts equally well in both directions when on, and each switch has an input signal range that extends to the supplies. In the off condition, signal levels up to the supplies are blocked. The on-resistance profile is flat over the full analog input range, which ensures linearity and low distortion when switching audio signals. ADGS1408/ADGS1409 product highlights: 1. SPI interface removes the need for parallel conversion, logic traces, and reduces GPIO channel count. 2. Daisy-chain mode removes additional logic traces when multiple devices are used. 3. CRC error detection, invalid read/write address detection, and SCLK count error detection ensure a robust digital interface. 4. CRC and error detection capabilities allow the use of the ADGS1408/ADGS1409 in safety critical systems. 5. Minimal distortion. Main features of ADGS1408/ADGS1409: SPI interface with error detection Includes CRC, invalid read/write address, and SCLK count error detection Supports burst mode and daisy-chain mode Industry-standard SPI Mode 0 and SPI Mode 3 interface compatible Round robin mode allows switching times comparable with a parallel interface General-purpose digital outputs to control other devices, such as parallel switches from Analog Devices, Inc. 4 Ω typical on resistance at 25℃ 0.5 Ω typical on-resistance flatness at 25℃ 0.2 Ω typical on-resistance match between channels at 25°C VSS to VDD analog signal range Fully specified at ±15 V, ±5 V, and +12 V Power-up sequence of VDD, VSS, and GND before applying VL and digital/analog inputs 1.8 V logic compatibility with 2.7 V ≤ VL ≤ 3.3 V 24-lead LFCSP package ADGS1408/ADGS1409 application: Automated test equipment Data acquisition systems Battery-powered systems Sample-and-hold systems Audio signal routing Video signal routing Communications systems Relay replacement Figure 1. Functional block diagram of ADGS1408 Figure 2. Functional block diagram of ADGS1409 Figure 3. ADGS1408 control ADG758 circuit diagram Evaluation board EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ The EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ are the evaluation boards for the ADGS1408/ADGS1409. The ADGS1408/ADGS1409 are low RON, 8:1/dual 4:1 multiplexers controlled by a serial peripheral interface (SPI). The SPI has robust error detection features, including cyclic redundancy check (CRC) error detection, invalid read/write address detection, and serial clock (SCLK) count error detection. It is possible to daisy-chain multiple ADGS1408/ADGS1409 devicestogether to enable the configuration of multiple devices with aminimal amount of digital lines. The ADGS1408/ADGS1409also support burst mode, which decreases the time between SPI commands. Figure 1 and Figure 2 shows the EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ board photographs. The EVAL-ADGS1408SDZ/ EVAL-ADGS1409SDZ are controlled by the EVAL-SDP-CB1Zsystem demonstration platform (SDP), which connects to a PC via a USB port. The ADGS1408/ADGS1409 is on the center of the evaluation board, and wire screw terminals are provided to connect to each of the source and drain pins. Three screwterminals power the device and, if required, a fourth terminal provides users with a defined digital logic supply voltage. Alternatively, the digital logic supply voltage can be supplied from the SDP-B board. Consult the ADGS1408/ADGS1409 data sheet (available from Analog Devices, Inc.) in conjunction with this user guide when working with the evaluation board. The evaluation board interfaces to the USB port of a PC via the SDP-B board. The SDP-B controller board (EVAL-SDP-CB1Z) is available for order at Main features of EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ: SPI interface with error detection Includes CRC error detection, invalid read/write address detection, and SCLK count error detection Analog supply voltages Dual supply: ±15 V Single supply: 12 V PC control in conjunction with evaluation software EVALUATION KIT CONTENTS EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ Figure 4. Outline drawing of EVAL-ADGS1408SDZ Figure 5. Outline drawing of EVAL-ADGS1409SDZ Figure 6. Circuit diagram of EVAL-ADGS1408SDZ-main device (1) Figure 7. EVAL-ADGS1408SDZ circuit diagram-main device (2) Figure 8. EVAL-ADGS1408SDZ circuit diagram-power supply and hardware reset Figure 9. EVAL-ADGS1408SDZ circuit diagram-SDP connector Figure 10. EVAL-ADGS1408SDZ PCB design drawing-silk screen Figure 11. EVAL-ADGS1408SDZ PCB design drawing-top layer Figure 12. EVAL-ADGS1408SDZ PCB design drawing-layer 2 Figure 13. EVAL-ADGS1408SDZ PCB design drawing-layer 3 Figure 14. EVAL-ADGS1408SDZ PCB design drawing-bottom layer Figure 15. EVAL-ADGS1409SDZ circuit diagram-master device (1) Figure 16. EVAL-ADGS1409SDZ circuit diagram-master device (2) Figure 17. EVAL-ADGS1409SDZ circuit diagram-power supply and hardware reset Figure 18. EVAL-ADGS1409SDZ circuit diagram-SDP connector EVAL-ADGS1408/9SDZ material list: Figure 19. EVAL-ADGS1409SDZ PCB design drawing-silk screen Figure 20. EVAL-ADGS1409SDZ PCB design drawing-top layer Figure 21. EVAL-ADGS1409SDZ PCB design drawing-layer 2 Figure 22. EVAL-ADGS1409SDZ PCB design drawing-layer 3 Figure 23. EVAL-ADGS1409SDZ PCB design drawing-bottom layer Recommend Vape,Disposable Vape,Electronic Cigarette,Puff Bar Disposable Vape Guangzhou Yunge Tianhong Electronic Technology Co., Ltd , https://www.e-cigarettesfactory.com
