Features and Benefits
- 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
- Guaranteed break-before-make switching allowing external wiring of switches to deliver multiplexer configurations
- 1 Ω typical on resistance at 25°C
- 0.23 Ω typical on resistance flatness at 25°C
- VSS to VDD analog signal range
- Fully specified at ±5 V, 12 V, 5 V, and 3.3 V
- ±3.3 V to ±8 V dual-supply operation
- 3.3 V to 16 V single-supply operation
- 1.8 V logic compatibility with 2.7 V ≤ VL ≤ 3.3 V
- 4 mm × 4 mm, 24-lead LFCSP package
The ADGS1612 contains four independent single-pole/single-throw (SPST) switches. A serial peripheral interface (SPI) controls the switches. The SPI interface 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 ADGS1612 devices together. Daisy-chaining enables the configuration of multiple devices with a minimal amount of digital lines. The ADGS1612 can also operate in burst mode to decrease the time between SPI commands.
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 ultralow on resistance (RON) of these switches make them ideal solutions for data acquisition and gain switching applications where low RON and low distortion are critical. The RON profile is very flat over the full analog input range, ensuring excellent linearity and low distortion when switching audio signals. The ADGS1612 exhibits break-before-make switching action for use in multiplexer applications. Note that throughout this data sheet, the multifunction pin, RESET/VL, is referred to either by the entire pin name or by a single function of the pin, for example, VL, when only that function is relevant.
- The SPI interface removes the need for parallel conversion and logic traces and reduces general-purpose input/output (GPIO) channel count.
- Daisy-chain mode removes additional logic traces when multiple devices are used.
- CRC, invalid read/write address, and SCLK count error detection ensure a robust digital interface.
- CRC error detection capabilities allow the use of the ADGS1612 in safety critical systems.
- Guaranteed break-before-make switching allows the use of the ADGS1612 in multiplexer configurations with external wiring.
- Minimum distortion.
- Communication systems
- Medical systems
- Audio and video signal routing
- Automatic test equipment
- Data acquisition systems
- Battery-powered systems
- Sample-and-hold systems
- Relay replacements
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The EVAL-ADGS1612SDZ is the evaluation board for the
ADGS1612. The ADGS1612 is an iCMOS, quad single-pole, single-throw (SPST) switch controlled by a serial peripheral
interface (SPI). The SPI has robust error detection features. These
are 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 ADGS1612 devices
together. This enables the configuration of multiple devices with a minimal amount of digital lines. The ADGS1612 also supports burst mode that decreases the time between SPI commands.
The EVAL-ADGS1612SDZ is controlled by the system demonstration platform (SDP) which connects to a PC via a USB port. The ADGS1612 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 screw terminals power the device and a fourth terminal provides users with a defined digital logic supply voltage, if required. Alternatively, the digital logic supply voltage can be supplied from the SDP.
Full specifications on the ADGS1612 are available in the ADGS1612 data sheet available from Analog Devices, Inc., and should be consulted in conjunction with this user guide when using the evaluation board.
The evaluation board interfaces to the USB port of a PC via the SDP board. The EVAL-SDP-CB1Z board (SDP-B controller board) is available to order on the Analog Devices website at www.analog.com.
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.