Specifications

16 Maxim Industrial Solutions
Programmable logic controllers (PLCs)
Analog output functions
Benefits
• Highly integrated and easy to design in
– 32-channel sample/hold
– Output clamps on each channel
– Wide +7V to -4V output voltage range
– Cascade two MAX5167s to form 64
output channels
• Unparalleled accuracy and linearity
meet system error budget
– 0.01% accuracy of acquired signal
– 0.01% linearity error
– Fast 2.5µs acquisition time
– Low 1mV/s droop rate
– Low 0.25mV hold step
MAX5167
The MAX5167 contains 32 buffered sample/hold amplifier circuits
with internal hold capacitors. The internal hold capacitors minimize
leakage current, dielectric absorption, feedthrough, and required
board space. The hold capacitors also provide fast 2.5μs (typ)
acquisition time while maintaining a relatively low 1mV/s (typ) droop
rate. This performance makes the MAX5167 sample/hold amplifier
ideal for high-speed sampling.
The MAX5167 has five address lines as inputs to a demultiplexer
which selects one of the 32 outputs. The analog input is connected
to the addressed sample/hold amplifiers when directed by the
control logic.
Eliminate 31 DACs and reduce system cost with a 32-output sample/hold amplifier
Block diagram of the MAX5167.
SWITCHES 0-31
ADDRESS LOGIC
CS
SELECT
CONFIG
ADDRESS BUS
ADDR0-ADDR4
V
L
S/H
IN
DATA BUS
OUT0
OUT1
OUT30
OUT31
MAX5167
DAC