Overview
The ADG1234YRUZ is a monolithic iCMOS analog switch produced by Analog Devices Inc. This device features four independently selectable single-pole, double-throw (SPDT) switches. It is designed to operate with dual supplies of ±15 V or a single supply of 12 V, making it versatile for various applications. The ADG1234YRUZ is particularly suited for portable and battery-powered instruments due to its low power consumption and high performance characteristics.
Key Specifications
| Parameter | Unit | Test Conditions/Comments | +25°C | −40°C to +85°C | −40°C to +125°C |
|---|---|---|---|---|---|
| Analog Signal Range | V | VSS to VDD (Dual Supply) | VSS to VDD | VSS to VDD | VSS to VDD |
| On Resistance (RON) | Ω | VS = ±10 V, IS = −1 mA | 120 typ, 190 max | 190 max | 230 max |
| On Resistance Match Between Channels (∆RON) | Ω | VS = ±10 V, IS = −1 mA | 3.5 typ, 6 max | 6 max | 10 max |
| On Resistance Flatness (RFLAT (ON)) | Ω | VS = −5 V, 0 V, +5 V; IS = −1 mA | 20 typ, 60 max | 60 max | 72 max |
| Leakage Currents (CS, Off) | pF | f = 1 MHz; VS = 0 V | 1.5 typ, 1.7 max | 1.7 max | 1.8 max |
| Power Requirements (IDD) | µA | Digital inputs = 0 V or VDD | 0.002 typ, 1.0 max | 0.002 typ, 1.0 max | 0.002 typ, 1.0 max |
Key Features
- Low Capacitance: 1.5 pF off capacitance and 3.5 pF on capacitance, making it ideal for data acquisition and sample-and-hold applications.
- Low Charge Injection: 0.5 pC charge injection, which minimizes glitches and ensures fast settling times.
- 3 V Logic-Compatible Digital Input: Compatible with 3 V logic, with VIH = 2.0 V and VIL = 0.8 V.
- Break-Before-Make Switching: Prevents momentary shorting when switching channels.
- Enable Input: An EN input allows the device to be enabled or disabled, switching all channels off when disabled.
- iCMOS Technology: Combines high voltage CMOS and bipolar technologies, enabling high performance, low power consumption, and reduced package size).
- Compact Packaging: Available in 20-lead TSSOP and 4 mm × 4 mm LFCSP packages).
Applications
- Data Acquisition and Sample-and-Hold: The low capacitance and charge injection make it ideal for these applications).
- Video Signal Switching: Fast switching speed and high signal bandwidth make it suitable for video signal switching).
- Portable and Battery-Powered Instruments: Low power dissipation and high performance characteristics make it well-suited for these applications).
Q & A
- What is the ADG1234YRUZ?
The ADG1234YRUZ is a monolithic iCMOS analog switch with four independently selectable SPDT switches, produced by Analog Devices Inc.
- What are the supply voltage options for the ADG1234YRUZ?
The device can operate with dual supplies of ±15 V or a single supply of 12 V.
- What is the typical on-resistance of the ADG1234YRUZ?
The typical on-resistance is 120 Ω at VS = ±10 V and IS = −1 mA.
- What is the charge injection of the ADG1234YRUZ?
The charge injection is 0.5 pC.
- Is the ADG1234YRUZ compatible with 3 V logic?
Yes, it is compatible with 3 V logic, with VIH = 2.0 V and VIL = 0.8 V.
- What type of switching action does the ADG1234YRUZ exhibit?
The device exhibits break-before-make switching action to prevent momentary shorting when switching channels.
- How can the ADG1234YRUZ be enabled or disabled?
The device can be enabled or disabled using an EN input, which switches all channels off when disabled.
- What are the packaging options for the ADG1234YRUZ?
The device is available in 20-lead TSSOP and 4 mm × 4 mm LFCSP packages.
- What are some typical applications of the ADG1234YRUZ?
Typical applications include data acquisition, sample-and-hold, video signal switching, and portable and battery-powered instruments.
- What technology is used in the ADG1234YRUZ?
The device uses iCMOS technology, which combines high voltage CMOS and bipolar technologies.
