Overview
The ADG734BRU-REEL, produced by Analog Devices Inc., is a low voltage, CMOS quad SPDT (single pole, double throw) switch. This device is part of the ADG733 and ADG734 series, which are designed for low power consumption and high switching speeds. The ADG734 is particularly suited for battery-powered and portable instruments due to its operating supply range of 1.8 V to 5.5 V and dual ±2.5 V supply rails. It features an enhanced submicron process, providing high signal bandwidths, very low on resistance, and low leakage currents.
Key Specifications
| Parameter | Typical Value | Maximum Value | Test Conditions |
|---|---|---|---|
| Supply Voltage (VDD) | 1.8 V to 5.5 V | - | - |
| Dual Supply Rails | ±2.5 V | - | - |
| On Resistance (RON) | 2.5 Ω | 4.5 Ω | VS = VSS to VDD, IDS = 10 mA |
| On Resistance Match between Channels (∆RON) | 0.1 Ω | 0.4 Ω | VS = VSS to VDD, IDS = 10 mA |
| On Resistance Flatness (RFLAT(ON)) | 0.5 Ω | - | VS = VSS to VDD |
| Switching Time (tON) | 21 ns | 35 ns | RL = 300 Ω, CL = 35 pF, VS = 1.5 V |
| Switching Time (tOFF) | 10 ns | 16 ns | RL = 300 Ω, CL = 35 pF, VS = 1.5 V |
| Break-Before-Make Time Delay (tD) | 13 ns | 1 ns min | RL = 300 Ω, CL = 35 pF, VS = 1.5 V |
| Charge Injection | ±5 pC | - | VS = 0 V, RS = 0 Ω |
| Input High Voltage (VINH) | 2.4 V min | - | - |
| Input Low Voltage (VINL) | 0.8 V max | - | - |
| Input Current (IINL or IINH) | 0.005 µA typ | ±0.1 µA max | VIN = VINL or VINH |
| Digital Input Capacitance (CIN) | 4 pF typ | - | - |
Key Features
- Low Power Consumption: The ADG734 has a low power consumption of less than 0.01 µW, making it ideal for battery-powered devices.
- Low On Resistance: The device features a low on resistance of 2.5 Ω typical, closely matched between switches, and very flat over the full signal range.
- High Switching Speed: The ADG734 has fast switching times with tON of 21 ns and tOFF of 10 ns, ensuring high performance in various applications.
- Break-Before-Make Switching Action: This feature prevents momentary shorting when switching channels, ensuring reliable operation.
- TTL/CMOS-Compatible Inputs: The device is compatible with both TTL and CMOS logic levels, enhancing its versatility in different systems.
- Low Leakage Currents: The ADG734 exhibits low leakage currents, typically 100 pA, which is crucial for maintaining signal integrity.
- Compact Packaging: Available in a 20-lead TSSOP package, making it suitable for space-constrained designs.
Applications
- Data Acquisition Systems: The ADG734 is suitable for data acquisition systems due to its high signal bandwidth and low on resistance.
- Communication Systems: It can be used in communication systems where fast switching and low signal distortion are critical.
- Relay Replacement: The device can replace mechanical relays in many applications, offering higher reliability and faster switching times.
- Audio and Video Switching: Its low on resistance and high signal bandwidth make it ideal for audio and video switching applications.
- Battery-Powered Systems: The low power consumption and wide operating supply range make it suitable for battery-powered, portable instruments.
Q & A
- What is the operating supply voltage range of the ADG734?
The ADG734 operates over a supply voltage range of 1.8 V to 5.5 V and can also handle dual ±2.5 V supply rails.
- What is the typical on resistance of the ADG734?
The typical on resistance of the ADG734 is 2.5 Ω.
- What is the switching time (tON) of the ADG734?
The switching time (tON) of the ADG734 is typically 21 ns.
- Does the ADG734 have break-before-make switching action?
- What is the input current (IINL or IINH) of the ADG734?
The input current (IINL or IINH) of the ADG734 is typically 0.005 µA.
- What are the typical applications of the ADG734?
The ADG734 is typically used in data acquisition systems, communication systems, relay replacement, audio and video switching, and battery-powered systems.
- What is the package type of the ADG734?
The ADG734 is available in a 20-lead TSSOP package.
- Is the ADG734 compatible with TTL and CMOS logic levels?
- What is the leakage current of the ADG734?
- Is the ADG734 suitable for automotive applications?
