LTC2857HMS8-1#TRPBF Linear Technology, LTC2857HMS8-1#TRPBF Datasheet - Page 5

• Manufacturer Part Number: LTC2857HMS8-1#TRPBF
• Description: IC TXRX RS485/RS422 8-MSOP
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC2857HMS8-1#TRPBF

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SWITCHING CHARACTERISTICS
SYMBOL
I
I
Driver in LTC2856-1, LTC2857-1, LTC2858-1
f
t
Δt
t
t
t
t
t
t
Driver in LTC2856-2, LTC2857-2, LTC2858-2
f
t
Δt
t
t
t
t
t
t
Receiver
t
t
t
t
t
t
temperature range, otherwise specifi cations are at T
CCT
CCTR
MAX
PLHD
SKEWD
RD
ZLD
LZD
ZHSD
SHDN
MAXS
PLHDS
SKEWDS
RDS
ZHDS
LZDS
ZHSDS
SHDNS
PLHR
SKEWR
RR
ZLR
LZR
ZHSR
PD
PDS
, t
, t
, t
, t
, t
, t
, t
, t
, t
FD
, t
, t
, t
FR
, t
ZHD
HZD
ZHR
HZR
FDS
, t
, t
HZDS
PHLD
ZLSD
ZLDS
PHLR
ZLSR
PHLDS
ZLSDS
,
,
PARAMETER
Supply Current in Transmit Mode
Supply Current with Both Driver and Receiver
Enabled
Maximum Data Rate
Driver Input to Output
Driver Input to Output Difference |t
Driver Output Y to Output Z
Driver Rise or Fall Time
Driver Enable or Disable Time
Driver Enable from Shutdown
Time to Shutdown
Maximum Data Rate
Driver Input to Output
Driver Input to Output Difference |t
Driver Output A to Output B
Driver Rise or Fall Time
Driver Enable Time
Driver Disable Time
Driver Enable from Shutdown
Time to Shutdown
Receiver Input to Output
Differential Receiver Skew, |t
Receiver Output Rise or Fall Time
Receiver Enable/Disable
Receiver Enable from Shutdown
PLHR
– t
PLHD
PLHD
PHLR
– t
– t
|
PHLD
PHLD
A
= 25°C. V
| R
| R
CONDITIONS
No Load, DE = V
RE = V
No Load, DE = V
RE = 0V
(Note 3)
R
R
R
R
LTC2856-1, LTC2858-1 (Figure 5)
R
LTC2856-1, LTC2858-1 (Figure 5)
(DE = ↓, RE = V
LTC2856-1, LTC2858-1 (Figure 5)
(Note 3)
R
R
R
R
LTC2856-2, LTC2858-2 (Figure 5)
R
LTC2856-2, LTC2858-2 (Figure 5)
R
LTC2856-2, LTC2858-2 (Figure 5)
(DE = 0V, RE↑) or (DE = ↓, RE = V
LTC2856-2, LTC2858-2 (Figure 5)
C
t
C
C
R
LTC2856-1, LTC2856-2, LTC2858-1,
LTC2858-2 (Figure 7)
R
LTC2856-1, LTC2856-2, LTC2858-1,
LTC2858-2 (Figure 7)
R
The
L
L
L
DIFF
DIFF
DIFF
DIFF
L
L
DIFF
DIFF
DIFF
DIFF
L
L
L
L
L
and t
= 15pF, V
= 15pF (Figure 6)
= 15pF (Figure 6)
= 500Ω, C
= 500Ω, C
= 500Ω, C
= 500Ω, C
= 500Ω, C
= 1k, C
= 1k, C
●
= 54Ω, C
= 54Ω, C
= 54Ω, C
= 54Ω, C
= 54Ω, C
= 54Ω, C
= 54Ω, C
= 54Ω, C
CC
CC
F
denotes the specifi cations which apply over the full operating
< 4ns (Figure 6)
= 5V unless otherwise noted. (Note 2)
L
L
= 15pF, DE = V
= 15pF, DE = 0V,
CM
L
L
L
L
L
L
L
L
L
L
L
L
L
= 50pF, RE = 0V,
= 50pF, RE = V
= 50pF, RE = 0V,
= 50pF, RE = 0V,
CC
= 1.5V, |V
50pF, RE = V
CC
CC
= 100pF (Figure 4)
= 100pF (Figure 4)
= 100pF (Figure 4)
= 100pF (Figure 4)
= 100pF (Figure 4)
= 100pF (Figure 4)
= 100pF (Figure 4)
= 100pF (Figure 4)
) or (DE = 0V, RE = ↑),
,
,
LTC2856-1
LTC2858-1
LTC2856-2
LTC2858-2
LTC2856-1
LTC2857-1
LTC2858-1
LTC2856-2
LTC2857-2
LTC2858-2
AB
CC
| = 1.5V,
CC
,
LTC2857-1/LTC2857-2
LTC2858-1/LTC2858-2
CC
,
,
CC
),
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
MIN
250
20
0.95
0.90
TYP
630
670
660
700
200
10
50
50
1
1
4
1
3
1000
1100
1100
1200
±500
MAX
12.5
12.5
100
500
300
500
1.5
1.5
50
±6
70
70
70
50
6
8
8
6
8
285678fe
UNITS
Mbps
5
kbps
μA
μA
μA
μA
ns
ns
ns
ns
ns
μs
ns
μs
ns
ns
μs
ns
ns
μs
ns
ns
ns
ns
ns
μs