Rainbow Electronics MAX9258 - Manual (Page 47)

ESD Protection
The MAX9257/MAX9258 ESD tolerance is rated for
Human Body Model, Machine Model, IEC 61000-4-2
and ISO 10605. The ISO 10605 and IEC 61000-4-2
standards specify ESD tolerance for electronic sys-
tems. LVDS outputs on the MAX9257 and LVDS inputs
on the MAX9258 meet ISO 10605 ESD protection and
IEC 61000-4-2 ESD protection. All other pins meet the
Human Body Model and Machine Model ESD toler-
ances. The Human Body Model discharge components
are C
S = 100pF and R D = 1.5kΩ (Figure 33). The IEC
61000-4-2 discharge components are C S = 150pF and
R D = 330Ω (Figure 32). The ISO 10605 discharge com-
ponents are C
S
= 330pF and R
D
= 2kΩ (Figure 34). The
Machine Model discharge components are C S = 200pF
and R D = 0Ω (Figure 35).
MAX9257/MAX9258
______________________________________________________________________________________ 47
Fully Programmable Serializer/Deserializer
with UART/I
2
C Control Channel
Chip Information
PROCESS: CMOS
STORAGE
CAPACITOR
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
1M Ω
R
D
1.5k Ω
C S
100pF
Figure 33. Human Body ESD Test Circuit
STORAGE
CAPACITOR
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
R
D
2k Ω
C S
330pF
Figure 34. ISO 10605 Contact Discharge ESD Test Circuit
STORAGE
CAPACITOR
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
R D
0 Ω
C
S
200pF
Figure 35. Machine Model ESD Test Circuit
C
S
150pF
STORAGE
CAPACITOR
HIGH-
VOLTAGE
DC
SOURCE
DEVICE
UNDER
TEST
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
R
D
330 Ω
Figure 32. IEC 61000-4-2 Contact Discharge ESD Test Circuit