LTC2852 Linear Technology, LTC2852 Datasheet - Page 4
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LTC2852
Manufacturer Part Number
LTC2852
Description
3.3V 20Mbps RS485/RS422 Transceivers
Manufacturer
Linear Technology
Datasheet
1.LTC2852.pdf
(16 pages)
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www.DataSheet4U.com
ELECTRICAL CHARACTERISTICS
LTC2850/LTC2851/LTC2852
temperature range, otherwise specifi cations are at T
SYMBOL
Driver
|V
Δ|V
V
Δ|V
I
I
Receiver
I
R
V
ΔV
V
V
I
I
Logic
V
V
I
4
OZD
OSD
IN
OZR
OSR
INL
TH
OC
OH
OL
IH
IL
IN
OD
TH
OD
OC
|
|
|
PARAMETER
Differential Driver Output Voltage
Difference in Magnitude of Driver Differential
Output Voltage for Complementary Output
States
Driver Common Mode Output Voltage
Difference in Magnitude of Driver Common
Mode Output Voltage for Complementary
Output States
Driver Three-State (High Impedance) Output
Current on Y and Z
Maximum Driver Short-Circuit Current
Receiver Input Current (A, B)
Receiver Input Resistance
Receiver Differential Input Threshold Voltage –7V ≤ B ≤ 12V
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Receiver Three-State (High Impedance)
Output Current on RO
Receiver Short-Circuit Current
Logic Input High Voltage
Logic Input Low Voltage
Logic Input Current
A
CONDITIONS
R = ∞, V
R = 27Ω, V
R = 50Ω, V
R = 27Ω or 50Ω (Figure 1)
R = 27Ω or 50Ω (Figure 1)
R = 27Ω or 50Ω (Figure 1)
DE = 0V, (Y or Z) = –7V, 12V (LTC2852)
–7V ≤ (Y or Z) ≤ 12V (Figure 2)
DE = TE = 0V, V
(Figure 3) (C, I-Grade)
DE = TE = 0V, V
(Figure 3) (C, I-Grade)
DE = TE = 0V, V
(Figure 3) (H-Grade)
DE = TE = 0V, V
(Figure 3) (H-Grade)
RE = V
V
(C, I-Grade)
RE = V
V
(H-Grade)
B = 0V
I(RO) = –4mA, A-B = 200mV, V
I(RO) = 4mA, A-B = –200mV, V
RE = V
0V ≤ RO ≤ V
V
V
= 25°C. V
IN
IN
CC
CC
= –7V, –3V, 3V, 7V, 12V (Figure 3)
= –7V, –3V, 3V, 7V, 12V (Figure 3)
= 3.6V
= 3V
The
CC
CC
CC
CC
, 0V ≤ RO ≤ V
or 0V, DE = TE = 0V,
or 0V, DE = TE = 0V,
l
CC
CC
= 3V (Figure 1)
CC
CC
denotes the specifi cations which apply over the full operating
= 3V (Figure 1)
= 3.13V (Figure 1)
= 3.3V unless otherwise noted. (Note 2)
CC
CC
CC
CC
= 0V or 3.3V, V
= 0V or 3.3V, V
= 0V or 3.3V, V
= 0V or 3.3V, V
CC
(LTC2850, LTC2852)
CC
CC
IN
IN
IN
IN
= 3V
= 3V
= –7V,
= –7V,
= 12V
= 12V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
–250
–100
–145
MIN
1.5
2.4
96
48
2
2
±180
TYP
125
125
25
0
±250
MAX
±0.2
V
V
V
±10
300
125
250
±85
±10
0.2
0.2
0.4
0.8
±1
3
CC
CC
CC
285012fc
UNITS
mA
mA
mV
mA
kΩ
kΩ
μA
μA
μA
μA
μA
μA
μA
V
V
V
V
V
V
V
V
V
V
V