IL3285/IL3222
7
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
www.isoloop.com
iso-info@nve.com
NVE Corporation
Receiver Section
Electrical Specifications (VDD1 = 3 V 5.5 V; VDD2 = 4.5 V 5.5 V; T = 40°C 85°C unless otherwise stated)
Parameters
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Coil Resistance
RCOIL
47
85
112
T = 25°C
31
85
128
T = 40°C 85°C
Coil Resistance Temperature Coefficient
TC RCOIL
0.2
0.25
/°C
Positive-going Input Threshold
VIT+
0.2
V
7 V < VCM < 12 V
Negative-going Input Threshold
VIT
0.2
V
7 V < VCM < 12 V
Hysteresis Voltage (Vit+ Vit)
VHYS
70
mV
VCM = 0V, T = 25°C
High Level Digital Output Voltage
VOH
VDD 0.2
V
VID = 200 mV
IOH = 4 mA
Low Level Digital Output Voltage
VOL
0.8
V
VID = 200 mV
IOL = 4 mA
High impedance state output current
IOZ
10
A
0.4
≤VO≤(VDD2 0.5) V
Line Input Current(8)
II
1
mA
VI = 12 V
0.8
VI = 7 V
Input Resistance
rI
96
k
Ω
Switching Characteristics (VDD1 = 5 V; VDD2 = 5 V; Cboost = 16pF; T = 40°C 85°C)
Parameters
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Data Rate
5
Mbps
RL = 54 Ω, CL = 50 pF
Propagation Delay(9)
tPD
90
150
ns
1.5
≤ VO ≤ 1.5 V,
CL = 15 pF
Pulse Skew(10)
tSK(P)
6
20
ns
1.5
≤ VO ≤ 1.5 V,
CL = 15 pF
Skew Limit(3)
tSK(LIM)
2
8
ns
RL = 54 Ω, CL = 50 pF
Read Enable Time to High Level
tPZH
4
10
ns
CL = 15 pF
Read Enable Time to Low Level
tPZL
4
10
ns
Read Disable Time from High Level
tPHZ
4
10
ns
Read Disable Time from Low Level
tPLZ
4
10
ns
Switching Characteristics (VDD1 = 3.3 V; VDD2 = 5 V; Cboost = 16pF; T = 40°C 85°C)
Parameters
Symbol
Min.
Typ.
Max.
Units
Test Conditions
Data Rate
5
Mbps
RL = 54 Ω, CL = 50 pF
Propagation Delay(9)
tPD
100
150
ns
1.5
≤ VO ≤ 1.5 V,
CL = 15 pF
Pulse Skew(10)
tSK(P)
10
20
ns
1.5
≤ VO ≤ 1.5 V,
CL = 15 pF
Skew Limit(3)
tSK(LIM)
4
10
ns
RL = 54 Ω, CL = 50 pF
Read Enable Time to High Level
tPZH
5
10
ns
CL = 15 pF
Read Enable Time to Low Level
tPZL
5
10
ns
Read Disable Time from High Level
tPHZ
5
10
ns
Read Disable Time from Low Level
tPLZ
17
10
ns
Notes (apply to both driver and receiver sections):
1. All voltages are with respect to network ground except differential I/O bus voltages.
2. Differential input/output voltage is measured at the non-inverting 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 VDD1, VDD2 = 5 V or VDD1= 3.3 V and TA = 25°C.
6. While 7 V < VCM < 12 V, the minimum VOD2 with a 54 load is either VOD1 or 1.5 V, whichever is greater.
7. Δ|VOD| and Δ|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from 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 tPHL| of each channel.