Overview
The ADM3072EARZ-REEL7, produced by Analog Devices Inc., is a 3.3 V low-power data transceiver designed for full- and half-duplex communication on multipoint bus networks. This device is part of the ADM307xE series, which is optimized for RS-485 and RS-422 communications. It features a single driver and a single receiver, making it suitable for a variety of industrial and commercial applications. The transceiver is known for its high-speed data transmission capabilities, robust ESD protection, and low power consumption, making it an ideal choice for systems requiring reliable and efficient communication.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Maximum Data Rate | - | - | 250 kbps | - | - | |
| Propagation Delay, Low-to-High Level | tDPLH | 250 ns | - | 1500 ns | CL = 50 pF, RL = 54 Ω | |
| Propagation Delay, High-to-Low Level | tDPHL | 250 ns | - | 1500 ns | CL = 50 pF, RL = 54 Ω | |
| Rise Time/Fall Time | tDR/tDF | 350 ns | - | 1600 ns | CL = 50 pF, RL = 54 Ω | |
| Differential Driver Output Skew | tDSKEW | - | - | 200 ns | CL = 50 pF, RL = 54 Ω | |
| ESD Protection on RS-485 Input/Output Pins | - | - | ±15 kV | - | - | |
| Operating Temperature Range | - | - | -40°C to +85°C | - | - | |
| Package Type | - | - | 8-Lead Standard Small Outline Package (SOIC) | - | - |
Key Features
- High-Speed Data Transmission: Supports data rates up to 250 kbps for the ADM3070E/ADM3071E/ADM3072E models.
- ESD Protection: Offers ±15 kV ESD protection on RS-485 input/output pins.
- Fail-Safe Receiver Inputs: Ensures a logic high receiver output when the receiver inputs are open, shorted, or connected to a terminated transmission line with all drivers disabled.
- Hot-Swap Capability: Allows line insertion without erroneous data transfer.
- Reduced Slew Rates: Minimizes EMI and reduces reflections caused by improperly terminated cables.
- Low Power Shutdown Current: Low power consumption in shutdown mode, except for the ADM3071E/ADM3074E/ADM3077E models.
- Thermal Shutdown and Short-Circuit Protection: Provides protection against thermal and short-circuit conditions.
- Common-Mode Input Range: Supports a common-mode input range of −7 V to +12 V.
Applications
- Power/Energy Metering: Suitable for use in power and energy metering systems.
- Industrial Control: Used in various industrial control systems for reliable communication.
- Lighting Systems: Can be integrated into lighting control systems.
- Telecommunications: Applicable in telecommunications equipment for data transmission.
- Security Systems: Utilized in security systems for secure data communication.
- Instrumentation: Employed in instrumentation for accurate and reliable data transmission.
Q & A
- What is the maximum data rate supported by the ADM3072EARZ-REEL7?
The ADM3072EARZ-REEL7 supports a maximum data rate of 250 kbps.
- What type of ESD protection does the ADM3072EARZ-REEL7 offer?
The device offers ±15 kV ESD protection on RS-485 input/output pins.
- What is the operating temperature range of the ADM3072EARZ-REEL7?
The operating temperature range is −40°C to +85°C.
- Does the ADM3072EARZ-REEL7 support hot-swap capability?
Yes, it supports hot-swap capability, allowing line insertion without erroneous data transfer.
- What is the common-mode input range of the ADM3072EARZ-REEL7?
The common-mode input range is −7 V to +12 V.
- What types of packages are available for the ADM3072EARZ-REEL7?
The device is available in 8-lead and 14-lead narrow SOIC packages.
- Does the ADM3072EARZ-REEL7 have thermal shutdown and short-circuit protection?
Yes, it includes thermal shutdown and short-circuit protection.
- What is the purpose of the reduced slew rates in the ADM3072EARZ-REEL7?
The reduced slew rates minimize EMI and reduce reflections caused by improperly terminated cables.
- Can the ADM3072EARZ-REEL7 be used in half-duplex communication?
Yes, the device supports both half- and full-duplex communication.
- How many nodes can be connected on the bus using the ADM3072EARZ-REEL7?
Up to 256 nodes can be connected on the bus.
