Overview
The ADM3070EARZ is a 3.3 V, low-power data transceiver from Analog Devices Inc., designed for RS-485 and RS-422 communication protocols. This device is part of the ADM307xE series, which offers a range of data rates and features suitable for various industrial and commercial applications. The ADM3070EARZ is known for its high reliability, low power consumption, and robust protection features, making it an ideal choice for systems requiring reliable serial 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 | |
| Operating Temperature Range | - | -40°C | - | +85°C | - | |
| Package Type | - | - | - | 14-Lead Standard Small Outline Package (SOIC) | - |
Key Features
- ±15 kV ESD protection on RS-485 input/output pins
- Half- and full-duplex options
- True fail-safe receiver inputs
- Up to 256 nodes on the bus
- Hot-swap input structure on DE and RE pins
- Reduced slew rates for low EMI
- Low power shutdown current (except for certain models)
- Outputs high-Z when disabled or powered off
- Common-mode input range: −7 V to +12 V
- Thermal shutdown and short-circuit protection
Applications
- Power/energy metering
- Industrial control
- Lighting systems
- Telecommunications
- Security systems
- Instrumentation
Q & A
- What is the maximum data rate of the ADM3070EARZ?
The maximum data rate of the ADM3070EARZ is 250 kbps.
- What type of ESD protection does the ADM3070EARZ offer?
The ADM3070EARZ offers ±15 kV ESD protection on RS-485 input/output pins.
- What are the operating temperature ranges for the ADM3070EARZ?
The operating temperature range for the ADM3070EARZ is −40°C to +85°C.
- What package types are available for the ADM3070EARZ?
The ADM3070EARZ is available in a 14-Lead Standard Small Outline Package (SOIC).
- Does the ADM3070EARZ support hot-swap inputs?
- What is the common-mode input range of the ADM3070EARZ?
The common-mode input range of the ADM3070EARZ is −7 V to +12 V.
- Does the ADM3070EARZ have thermal shutdown and short-circuit protection?
- How many nodes can be supported on the bus with the ADM3070EARZ?
- What are some typical applications of the ADM3070EARZ?
- Does the ADM3070EARZ have reduced slew rates for low EMI?
