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General Description

The MAX5166 contains four 1-to-8 multiplexers and 32

sample/hold amplifiers. The sample/hold amplifiers are

organized into four octal sample/holds with separate

inputs and independent TTL/CMOS-compatible hold

enables for each octal set. Additional 3-bit TTL/CMOS-

compatible address logic selects the 1-to-8 multiplexer

channel. The MAX5166 is available with an output imped-

ance of 50

Ω, 500Ω, or 1kΩ, allowing output filtering.

The MAX5166 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, low droop rate, and a

low hold step. The device acquires 8V step input sig-

nals to 0.01% accuracy in 2.5µs. Transitions from sam-

ple mode to hold mode result in only 0.5mV of error.

While in hold mode, the output voltage slowly droops at

a rate of 1mV/sec. The MAX5166 is available in a 48-pin

TQFP package.

Applications

Automatic Test Systems (ATE)

Industrial Process Controls

Arbitrary Function Generators

Avionics Equipment

Features

o Quad, 8-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/sec

o Low Hold Step: 0.25mV

o Wide Output Voltage Range: +7V to -4V

32-Channel Sample/Hold Amplifier

with Four Multiplexed Inputs

________________________________________________________________ Maxim Integrated Products

1

OUT21

OUT20

OUT19

OUT18

OUT17

OUT16

OUT15

OUT14

OUT13

OUT12

OUT11

A2

M0

M1

M2

M3

DGND

AGND

IN3

IN2

IN1

1

2

3

4

5

6

7

8

9

10

11

12

36

35

34

33

32

31

30

29

28

27

26

25

TQFP

MAX5166

TOP VIEW

19-1456; Rev 0; 8/99

PART

MAX5166LCCM

MAX5166MCCM

MAX5166NCCM

0°C to +70°C

0°C to +70°C

0°C to +70°C

TEMP. RANGE

PIN-

PACKAGE

48 TQFP

48 TQFP

48 TQFP

Pin Configuration

Ordering Information

(

Ω)

50

500

1k

MAX5166LECM

MAX5166MECM

MAX5166NECM

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

48 TQFP

48 TQFP

48 TQFP

50

500

1k