General Description

The MAX5167 contains 32 sample-and-hold amplifiers

driven by a single multiplexed input. The control logic

addressing the outputs is a simple 5-wire input to the

multiplexer. Additional logic allows two devices to function

as a single 64-channel unit. Clamping diodes on each

output allows clamping between two external

reference voltages. The MAX5167 is available with an

output impedance of 50

Ω, 500Ω, or 1kΩ.

The MAX5167 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 MAX5167 has a typical linearity error

of less than 0.01% and can accurately acquire an 8V

step input signal 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 MAX5167 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.

________________________Applications

Automatic Test Systems (ATE)

Industrial Process Controls

Arbitrary Function Generators

Avionics Equipment

Features

o 32-Channel Sample/Hold

o Output Clamps on Each Channel

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

32-Channel Sample/Hold Amplifier

with Output Clamping Diodes

________________________________________________________________ Maxim Integrated Products

1

OUT21

OUT20

OUT19

OUT18

OUT17

OUT16

OUT15

OUT14

OUT13

OUT12

OUT11

ADDR2

ADDR3

ADDR4

SELECT

S/H

CONFIG

DGND

AGND

IN

CH

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

MAX5167

TOP VIEW

Pin Configuration

19-1675; Rev 0; 4/00

Ordering Information

48 TQFP

PIN-

PACKAGE

TEMP. RANGE

0°C to +70°C

MAX5167LCCM

PART

48 TQFP

0°C to +70°C

MAX5167MCCM

48 TQFP

0°C to +70°C

MAX5167NCCM

48 TQFP

-40°C to +85°C

MAX5167LECM

48 TQFP

-40°C to +85°C

MAX5167MECM

48 TQFP

-40°C to +85°C

MAX5167NECM

50

Ω)

500

1k

50

500

1k

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.