MAX5168 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – 32-Channel Sample/Hold Amplifier with a Single Multiplexed Input

19-1674; Rev 0; 4/00
32-Channel Sample/Hold Amplifier
with a Single Multiplexed Input
General Description
The MAX5168 contains 32 sample/hold amplifiers and
four 1-of-8 multiplexers. The logic controlling the muxes
and sample/hold amplifiers combines the four muxes into
a unified 1-of-32 multiplexer with a sample/hold at each
output. Additional logic allows two devices to function as
a single 64-channel unit. The MAX5168 is available with
an output impedance of 50Ω, 500Ω, or 1kΩ.
The MAX5168 operates with +10V and -5V supplies, and
a separate +5V digital logic supply. Manufactured with a
proprietary BiCMOS process, it provides high accuracy,
fast acquisition time, a low droop rate, and a low hold
step. The MAX5168 has a typical linearity error of less
than 0.01% and can accurately acquire 8V step input sig-
nals to 0.01% accuracy in 2.5µs within the +7V to -4V
input signal range. Transitions from sample mode to hold
mode result in only a 0.5mV error. While in hold mode, the
output voltage slowly droops at a rate of 1mV/s.
The MAX5168 is available in a 48-pin TQFP package and
is specified for both the commercial (0°C to +70°C) and
extended industrial (-40°C to +85°C) temperature ranges.
Features
o 32-Channel Sample/Hold
o 0.01% Accuracy of Acquired Signal
o 0.01% Linearity Error
o Fast Acquisition Time: 2.5µs
o Low Droop Rate: 1mV/s
o Low Hold Step: 0.25mV
o Wide Output Voltage Range: +7V to -4V
Ordering Information
PART
TEMP. RANGE
MAX5168LCCM
MAX5168MCCM
MAX5168NCCM
MAX5168LECM
MAX5168MECM
MAX5168NECM
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
48 TQFP
48 TQFP
48 TQFP
48 TQFP
48 TQFP
48 TQFP
R_OUT
(Ω)
50
500
1k
50
500
1k
________________________Applications
Automatic Test Systems (ATE)
Industrial Process Controls
Arbitrary Function Generators
Avionics Equipment
TOP VIEW
ADDR2 1
ADDR3 2
ADDR4 3
SELECT 4
S/H 5
CONFIG 6
V_L 7
DGND 8
V_SS 9
AGND 10
IN 11
N.C. 12
Pin Configuration
MAX5168
36 OUT21
35 OUT20
34 OUT19
33 OUT18
32 OUT17
31 OUT16
30 V_DD
29 OUT15
28 OUT14
27 OUT13
26 OUT12
25 OUT11
TQFP
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