GM3085E
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the GM3085E does
The GM3085E is a high-speed RS-485/RS-422 transceiver featuring fail-safe receiver circuitry and ±15kV ESD protection. It operates on a single supply of 3.0 to 5.5 V with a 1/8-unit-load input impedance that supports up to 256 devices on the bus. Enhanced slew-rate limiting minimizes EMI and reflections, enabling error-free data transmission at speeds up to 1 Mbps. This device is typically used in industrial control systems, electricity and water meters, gas meters, EMI-sensitive transceiver applications, security systems, lighting systems, and instrument meters.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | — | 140 µA | 600 µA | No load, \overline{RE} = DI = VCC, DE = VCC; icc; SUPPLY CURRENT | Gatemode datasheet, p. 3 — 6 DC ELECTRICAL CHARACTERISTICS |
| output voltage | — | — | 200 mV | Figure 2, R = 50Ω or R = 27Ω; DRIVER | Gatemode datasheet, p. 3 — 6 DC ELECTRICAL CHARACTERISTICS |
| supply voltage range | 3 V | — | 5.5 V | vcc; DRIVER | Gatemode datasheet, p. 3 — 6 DC ELECTRICAL CHARACTERISTICS |
| operating temperature | -40 °C | — | 85 °C | Gatemode datasheet, p. 10 — Order Information | |
| propagation delay | — | 127 ns | — | TRPLH/TRPHL, Receiver Input to Output, |VID| ≥ 2.0V, rise and fall time of VID ≤ 15ns (typ) | Gatemode datasheet, p. 4 — 7 SWITCHING CHARACTERISTICS |
| data rate | — | — | 1 Mbps | fmax; 7 SWITCHING CHARACTERISTICS | Gatemode datasheet, p. 4 — 7 SWITCHING CHARACTERISTICS |
| fall time | 200 ns | 530 ns | 750 ns | Figures 4and6, RDIFF = 54Ω, CL1 = CL2 = 100pF; tdr; 7 SWITCHING CHARACTERISTICS | Gatemode datasheet, p. 4 — 7 SWITCHING CHARACTERISTICS |
| output voltage low | — | — | 400 mV | IO = 4mA, VID = -200mV; vol; RECEIVER | Gatemode datasheet, p. 3 — 6 DC ELECTRICAL CHARACTERISTICS |
| channel count | — | 1 | — | one driver and one receiver transceiver | Gatemode datasheet, p. 1 |
| driver count | — | 1 | — | contain one driver and one receiver | Gatemode datasheet, p. 1 |
| receiver count | — | 1 | — | contain one driver and one receiver | Gatemode datasheet, p. 1 |
Closest matches to GM3085E
Frequently asked questions
What is the channel count for the GM3085E?
The channel count is 1 for one driver and one receiver transceiver.
What is the data rate at fmax under 7 SWITCHING CHARACTERISTICS?
The data rate is 1 Mbps.
What is the driver count for the GM3085E?
The driver count is 1, as it contains one driver and one receiver.
What is the fall time specified in Figures 4 and 6 under the conditions RDIFF = 54Ω, CL1 = CL2 = 100pF, and tdr?
The fall time is 530 ns.
What is the maximum operating temperature for the GM3085E?
The operating temperature is 85 °C.
What is the output voltage shown in Figure 2 for the DRIVER with R = 50Ω or R = 27Ω?
The output voltage is 200 mV.
What is the output voltage low (VOL) for the GM3085E when IO = 4mA, VID = -200mV, and the device is acting as a receiver?
The output voltage low is 400 mV.
What is the propagation delay (TRPLH/TRPHL) from the Receiver Input to Output when |VID| ≥ 2.0V and the rise and fall time of VID is ≤ 15ns (typ)?
The propagation delay is 127 ns.
What is the quiescent current of the GM3085E under no load conditions with RE and DE tied to VCC?
The quiescent current is 140 µA.
What is the receiver count for the GM3085E?
The receiver count is 1, as the part contains one driver and one receiver.
What is the supply voltage range for the GM3085E when VCC is DRIVER?
The supply voltage range is 5.5 V.