IL3285 IL3222
4
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
Fax (952) 829-9189
Internet: www.isoloop.com
Driver Section
Electrical Specifications are Tmin to Tmax unless otherwise stated.
Parameters
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Output voltage
V
DD
V
Io = 0
Differential Output Voltage
|VOD1|
V
DD
V
IO = 0
Differential Output Voltage(6)
VOD3
1.5
2.3
5
V
RL = 54 Ω, VDD = 5 V
Change in Magnitude of (7) Differential
Output Voltage
∆|VOD|
±0.2
V
RL = 54 Ω or 100 Ω
VOC
Common Mode Output Voltage
VOC
3
V
RL = 54 Ω or 100 Ω
Change in Magnitude of (7) Common
Mode Output Voltage
∆|VOC|
±0.2
V
RL = 54 Ω or 100 Ω
Output Current(4)
1
-0.8
mA
Output Disabled,
VO = 12
High Level Input Current
IIH
2
mA
Low Level Input Current
IIL
10
mA
|Short-circuit Output Current |
IOS
60
250
mA
-7 V < VO <12 V
Supply Current
(VDD2 = +5V)
IDD2
4
7
mA
No Load (Outputs
Enabled)
Supply Current
(VDD1 = +5V)
IDD1
2
3
mA
(VDD2 = +3.3V)
IDD1
1.4
2
mA
Switching Specifications
Parameters
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Maximum Data Rate
5
Mbps
RL = 54 Ω, CL = 50 pF
Differential Output Prop Delay
tD(OD)
40
65
ns
RL = 54 Ω, CL = 50 pF
Pulse Skew(10)
tSK(P)
6
20
ns
RL = 54 Ω, CL = 50 pF
Differential Output Rise & Fall Time
tT(OD)
12
25
ns
RL = 54 Ω, CL = 50 pF
Output Enable Time To High Level
tPZH
25
80
ns
RL = 54 Ω, CL = 50 pF
Output Enable Time To Low Level
tPZL
25
80
ns
RL = 54 Ω, CL = 50 pF
Output Disable Time From High Level
tPHZ
25
80
ns
RL = 54 Ω, CL = 50 pF
Output Disable Time From Low Level
tPLZ
25
80
ns
RL = 54 Ω, CL = 50 pF
Skew Limit(3)
tSK(LIM)
12
40
ns
RL = 54 Ω, CL = 50pF
Notes: These notes apply to both driver and receiver sections.
1. All Voltage values are with respect to network ground except differential I/O bus voltages.
2. Differential input/output voltage is measured at the noninverting terminal A with respect to the inverting terminal B.
3. Skew limit is the maximum difference in any two channels in one device.
4. The power-off measurement in ANSI Standard EIA/TIA-422-B applies to disabled outputs only and is not applied to
combined inputs and outputs.
5. All typical values are at VDD!,VDD2 = 5 V or VDD!= 3.3 V and TA = 25°C.
6. While –7 V<VCM>12 V, the minimum VOD2 with a 54 Ω load is either ½ VOD1 or 2.3 V, whichever is greater.
7. D|VOD| and D|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed form one
logic state to the other.
8. This applies for both power on and power off, refer to ANSI standard RS-485 for exact condition. The EIA/TIA-422-B limit
does not apply for a combined driver and receiver terminal.
9. Includes 10 ns read enable time. Maximum propagation delay is 25 ns after read assertion.
10. Pulse skew is defined as the |tPLH -tPHLl| of each channel.
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
