il3122 NVE Corp., il3122 Datasheet
![no-image](/images/no-image-200.jpg)
il3122
Available stocks
Related parts for il3122
il3122 Summary of contents
Page 1
... NVE’s patented* IsoLoop spintronic Giant L Drive Magnetoresistance (GMR) technology. The IL3185 delivers at L Drive least 1.5 V into a 54 Ω load, and the IL3122 at least 2 V into a L Receive 100 Ω load, allowing excellent data integrity over long cables. L Receive These devices are also compatible with 3.3 V input supplies, ...
Page 2
... Creepage Distance (external) Barrier Impedance Leakage Current Safety Approvals IEC61010-2001 TUV Certificate Numbers: N1502812, N1502812-101 Classification: Reinforced Insulation IL3122E, IL3185E, IL3122-3E, IL3185-3E UL 1577 Rated 2500 V for 1 minute RMS Component Recognition Program File Number: E207481 Soldering Profile Per JEDEC J-STD-020C, MSL=2 Electrostatic Discharge Sensitivity This product has been tested for electrostatic sensitivity to the limits stated in the specifications ...
Page 3
... B Inverting bus line internal connection 15 GND Ground return for Coil for R (connect to V COIL2 IL3122-3 Pin Connections (0.15" SOIC Package Input power supply DD1 2 GND Ground return for Output data from bus 3 Read enable 4 RE ...
Page 4
... Inverting bus line internal connection 15 GND Ground return for Coil for R (connect to V COIL2 IL3122 Pin Connections (0.3" SOIC Package Input power supply DD1 2 GND Ground return for Output data from bus Read enable ...
Page 5
... PZH t 25 PZL t 25 PHZ t 25 PLZ t (LIM) SK |CM |,| Phone: (952) 829-9217 Fax: (952) 829-9189 IL3185/IL3122 Max. Units Test Conditions T = 25°C Ω||nH AMB Ω/° 100 Ω ...
Page 6
... A with a 54 Ω load is either ½ 1.5 V, whichever is greater. OD2 OD1 and V , respectively, that occur when the input is changed from one logic state to the other Phone: (952) 829-9217 IL3185/IL3122 Max. Units Test Conditions T = 25°C Ω||nH AMB Ω/°C ...
Page 7
... DD2 Operation The IL3122 and IL3185 are current-mode devices. Changes in input coil current switch internal spintronic GMR sensors, which then change the logic state of the outputs. The GMR bridge is designed so the output of the isolator is logic high when no field signal is present. ...
Page 8
... A DC current flowing in a conductor ±70 Gauss 1 cm from the device could cause disturbance A DC current of 200 A flowing in a conductor ±250 Gauss 1 cm from the device could cause disturbance 8 Phone: (952) 829-9217 Fax: (952) 829-9189 IL3185/IL3122 www.IsoLoop.com ©2008 NVE Corporation ...
Page 9
... In RS-422 systems only the receiver end should be terminated. Unterminated Proper termination is imperative when using IL3185 and IL3122 to minimize reflections. Unterminated lines are only suitable for very low data rates and very short cable runs, otherwise line reflections cause problems. Parallel terminations are the most popular. ...
Page 10
... Unit Loads (12 kΩ each), without external fail Nominal V Fail-Safe A-B Operation? Loading (inactive) 238 254 mV 247 mV 10 Phone: (952) 829-9217 IL3185/IL3122 ) at one end of the bus can FS-EXT Yes No Yes Yes Fax: (952) 829-9189 www.IsoLoop.com ©2008 NVE Corporation ; see FS-INT ...
Page 11
... Dimensions in inches (mm) 0.013 (0.3) 0.020 (0.5) 0.007 (0.2) 0.013 (0.3) 0.08 (2.0) 0.10 (2.5) NOTE: Pin spacing is a BASIC dimension; tolerances do not accumulate 11 Phone: (952) 829-9217 Fax: (952) 829-9189 IL3185/IL3122 NOM 0.054 (1.4) 0.072 (1.8) 0.004 (0.1) 0.012 (0.3) 0.287 (7.29) 0.300 (7.62) NOM 0.016 (0.4) 0.050 (1.3) 0.040 (1.0) 0.004 (0.1) 0.060 (1.5) 0.012 (0.3) www.IsoLoop.com © ...
Page 12
... SOIC Base Part Number 3185 = RS-485 Transceiver 3122 = RS-422 Transmitter/Receiver Product Family IL = Isolators 12 Phone: (952) 829-9217 Fax: (952) 829-9189 IL3185/IL3122 Valid Part Numbers IL3185E IL3185E TR13 IL3185-3E IL3185-3E TR13 IL3122E IL3122E TR13 IL3122-3E IL3122-3E TR13 RoHS COMPLIANT www.IsoLoop.com ©2008 NVE Corporation ...
Page 13
... Fail-safe biasing section added Narrow-body-SOIC packages added Capacitor Information added on page 1 Input Signal Rise/Fall times changed from 10 μs to 1μs Typical coil formations show C Boost Switching characteristics show C Boost 13 Phone: (952) 829-9217 Fax: (952) 829-9189 IL3185/IL3122 = 16 pF www.IsoLoop.com ©2008 NVE Corporation ...
Page 14
... President of NVE Corporation. Specifications are subject to change without notice. ISB-DS-001-IL3185/22-G February 2008 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 IL3185/IL3122 14 Phone: (952) 829-9217 Fax: (952) 829-9189 www.IsoLoop.com ©2008 NVE Corporation ...