LTC2862A
8
2862af
For more information www.linear.com/LTC2862A
pin FuncTions
PIN NAME PIN NUMBER DESCRIPTION
RO 1 Receiver Output. If the receiver output is enabled (RE low) and A–B > 200mV, then RO will be high.
If A–B < –200mV, then RO will be low. If the receiver inputs are open, shorted, or terminated without a
signal, RO will be high. Integrated 250kΩ pull-up to V
CC
.
RE 2 Receiver Enable. A low input enables the receiver. A high input forces the receiver output into a high
impedance state. If RE is high with DE low, the part will enter a low power shutdown state.
DE 3 Driver Enable. A high input on DE enables the driver. A low input will force the driver outputs into a high
impedance state. If DE is low with RE high, the part will enter a low power shutdown state.
DI 4 Driver Input. If the driver outputs are enabled (DE high), then a low on DI forces the driver noninverting
output A low and inverting output B high. A high on DI, with the driver outputs enabled, forces the
driver noninverting output A high and inverting output B low.
GND 5 Ground.
Exposed Pad 9 Connect the exposed pad on the DFN packages to GND.
B 7 Inverting Receiver Input and Inverting Driver Output.
Impedance is ~112kΩ in receive mode or unpowered.
A 6 Noninverting Receiver Input and Noninverting Driver Output.
Impedance is ~112kΩ in receive mode or unpowered.
V
CC
8 Power Supply. 3V < V
CC
< 5.5V. Bypass with 1µF ceramic capacitor to GND for best ESD performance.
LTC2862A
LOGIC INPUTS MODE A, B RO
DE RE
0 0 Receive R
IN
Active
0 1 Shutdown R
IN
High-Z*
1 0 Transceive Active Active
1 1 Transmit Active High-Z*
* 250kΩ pull-up to V
CC
.
FuncTion Table
