MAX3095ESE+ Maxim Integrated Products, MAX3095ESE+ Datasheet - Page 8
![IC RS485/422 RX 10MBPS 16-SOIC](/photos/6/66/66630/175-16-soic_sml.jpg)
MAX3095ESE+
Manufacturer Part Number
MAX3095ESE+
Description
IC RS485/422 RX 10MBPS 16-SOIC
Manufacturer
Maxim Integrated Products
Type
Receiverr
Specifications of MAX3095ESE+
Number Of Drivers/receivers
0/4
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Data Rate
10 Mbps
Operating Supply Voltage
5 V
Supply Current
2.4 mA
Operating Temperature Range
- 40 C to + 85 C
Maximum Power Dissipation
696 mW
Mounting Style
SMD/SMT
Ic Interface Type
RS422, RS485
Supply Voltage Range
4.75V To 5.25V
Driver Case Style
SOIC
No. Of Pins
16
Filter Terminals
SMD
Rohs Compliant
Yes
Data Rate Max
10Mbps
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
As with all Maxim devices, ESD-protection structures
are incorporated on all pins to protect against electro-
static discharges (ESD) encountered during handling
and assembly. The MAX3095/MAX3096 receiver inputs
have extra protection against static electricity found in
normal operation. Maxim’s engineers developed state-
of-the-art structures to protect these pins against ±15kV
ESD, without damage. After an ESD event, the MAX3095/
MAX3096 continue working without latchup.
ESD protection can be tested in several ways. The
receiver inputs are characterized for protection to the
following:
1) ±15kV using the Human Body Model
2) ±8kV using the Contact-Discharge Method specified
3) ±15kV using the Air-Gap Method specified in
ESD performance depends on a number of conditions.
Contact Maxim for a reliability report that documents
test setup, methodology, and results.
Figure 4a shows the Human Body Model, and Figure
4b shows the current waveform it generates when dis-
charged into a low impedance. This model consists of a
100pF capacitor charged to the ESD voltage of interest,
which is then discharged into the device through a
1.5kΩ resistor.
Since January 1996, all equipment manufactured and/or
sold in the European community has been required to
meet the stringent IEC 1000-4-2 specification. The IEC
1000-4-2 standard covers ESD testing and performance
of finished equipment; it does not specifically refer to inte-
grated circuits. The MAX3095/MAX3096 help you design
equipment that meets Level 4 (the highest level) of IEC
1000-4-2, without additional ESD-protection components.
±15kV ESD-Protected, 10Mbps, 3V/5V,
Quad RS-422/RS-485 Receivers
8
_______________Detailed Description
in IEC 1000-4-2 (formerly IEC 801-2)
IEC 1000-4-2 (formerly IEC 801-2)
_______________________________________________________________________________________
±15kV ESD Protection
ESD Test Conditions
Human Body Model
IEC 1000-4-2
The main difference between tests done using the
Human Body Model and IEC 1000-4-2 is higher peak
current in IEC 1000-4-2. Because series resistance is
lower in the IEC 1000-4-2 ESD test model (Figure 5a), the
ESD-withstand voltage measured to this standard is gen-
erally lower than that measured using the Human Body
Model. Figure 5b shows the current waveform for the
±8kV IEC 1000-4-2 Level 4 ESD Contact-Discharge test.
The Air-Gap test involves approaching the device with a
charge probe. The Contact-Discharge method connects
the probe to the device before the probe is energized.
The Machine Model for ESD testing uses a 200pF stor-
age capacitor and zero-discharge resistance. It mimics
the stress caused by handling during manufacturing
and assembly. Of course, all pins (not just RS-485
inputs) require this protection during manufacturing.
Therefore, the Machine Model is less relevant to the I/O
ports than are the Human Body Model and IEC 1000-4-2.
Table 1 shows the functionality of the enable inputs.
The MAX3095/MAX3096 enter shutdown when G is low
and G is high. In shutdown, all outputs go high imped-
ance and the devices typically draw less than 1nA. The
devices exit shutdown by taking G high or G low. The
typical shutdown exit time is 600ns.
Table 1. Function Table
X = don’t care, High-Z = high impedance
G
X
X
X
1
1
1
0
G
X
X
X
0
0
0
1
Low-Power Shutdown Mode
≤ -200mV
≤ -200mV
≥ 200mV
≥ 200mV
(A - B)
Open
Open
X
OUTPUT
High-Z
Y
1
0
1
1
0
1
Machine Model
Shutdown
DEVICE
MODE
On
On
On
On
On
On