Overview
The ADGS1412BCPZ-RL7, produced by Analog Devices Inc., is a quad single-pole/single-throw (SPST) analog switch with a serial peripheral interface (SPI) for control. This device features four independent SPST switches, each capable of conducting equally well in both directions when on. The SPI interface includes robust error detection mechanisms such as cyclic redundancy check (CRC) error detection, invalid read/write address detection, and SCLK count error detection. This makes the ADGS1412 suitable for safety-critical systems and applications requiring high reliability.
The device operates in daisy-chain mode, allowing multiple ADGS1412 devices to be configured with a minimal number of digital lines. It also supports burst mode to reduce the time between SPI commands. The iCMOS construction ensures ultralow power dissipation, making it ideal for portable and battery-powered instruments.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| On Resistance (RON) | 1.5 Ω (typ), 2.8 Ω (max) | Ω | VS = 0 V to 10 V, IS = −10 mA |
| On Resistance Flatness | 0.3 Ω (typ) | Ω | At 25°C |
| On Resistance Match Between Channels | 0.1 Ω (typ) | Ω | At 25°C |
| Analog Signal Range | VSS to VDD, fully specified at ±15 V, ±5 V, and +12 V | V | |
| Logic Compatibility | 1.8 V, 2.7 V ≤ VL ≤ 3.3 V | V | |
| Total Harmonic Distortion + Noise | 0.014% (typ) | % | |
| Package Type | 24-lead LFCSP-EP | ||
| Operating Temperature Range | -40°C to 125°C | °C |
Key Features
- SPI Interface: Compatible with industry-standard SPI mode 0 and mode 3, featuring robust error detection mechanisms like CRC, invalid read/write address detection, and SCLK count error detection.
- Daisy-Chain Mode: Allows multiple devices to be configured with minimal digital lines.
- Burst Mode: Reduces the time between SPI commands.
- Break-Before-Make Switching: Enables external wiring of switches to deliver multiplexer configurations.
- Low On Resistance and Flatness: 1.5 Ω typical on resistance at 25°C, with 0.3 Ω typical on resistance flatness and 0.1 Ω typical on resistance match between channels.
- Wide Analog Signal Range: Fully specified at ±15 V, ±5 V, and +12 V.
- Low Power Consumption: iCMOS construction ensures ultralow power dissipation, suitable for battery-powered systems.
Applications
- Automated Test Equipment: Ideal for test and measurement applications requiring precise switching.
- Data Acquisition Systems: Suitable for systems that need to switch between multiple analog signals.
- Battery-Powered Systems: Low power consumption makes it suitable for portable and battery-powered instruments.
- Sample-and-Hold Systems: Ensures minimal distortion and high linearity in sample-and-hold applications.
- Audio and Video Signal Routing: Low distortion and flat on-resistance profile make it ideal for audio and video signal switching.
- Communications Systems: Used in various communication systems requiring reliable analog switching.
- Relay Replacement: Can replace mechanical relays in many applications due to its robust and reliable operation).
Q & A
- What is the ADGS1412BCPZ-RL7?
The ADGS1412BCPZ-RL7 is a quad single-pole/single-throw (SPST) analog switch with an SPI interface, produced by Analog Devices Inc..
- What are the key features of the SPI interface?
The SPI interface is compatible with industry-standard SPI mode 0 and mode 3, featuring robust error detection mechanisms like CRC, invalid read/write address detection, and SCLK count error detection.
- Can multiple ADGS1412 devices be daisy-chained?
- What is the typical on resistance of the ADGS1412BCPZ-RL7?
The typical on resistance is 1.5 Ω at 25°C.
- What is the operating temperature range of the ADGS1412BCPZ-RL7?
The operating temperature range is from -40°C to 125°C.
- What are some typical applications of the ADGS1412BCPZ-RL7?
Typical applications include automated test equipment, data acquisition systems, battery-powered systems, sample-and-hold systems, audio and video signal routing, communications systems, and relay replacement.
- What is the package type of the ADGS1412BCPZ-RL7?
The package type is a 24-lead LFCSP-EP.
- Does the ADGS1412BCPZ-RL7 support burst mode?
- What is the logic compatibility of the ADGS1412BCPZ-RL7?
The device is 1.8 V logic compatible with 2.7 V ≤ VL ≤ 3.3 V.
- How does the ADGS1412BCPZ-RL7 ensure low distortion in audio signals?
The on-resistance profile is flat over the full analog input range, ensuring good linearity and low distortion when switching audio signals.
