MAX192BEPP Maxim Integrated Products, MAX192BEPP Datasheet

MAX192BEPP

Manufacturer Part Number

MAX192BEPP

Description

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX192BEWP.pdf (24 pages)

Specifications of MAX192BEPP

Case

DIP

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________________General Description

The MAX192 is a low-cost, 10-bit data-acquisition system

that combines an 8-channel multiplexer, high-bandwidth

track/hold, and serial interface with high conversion

speed and ultra-low power consumption. The device

operates with a single +5V supply. The analog inputs are

software configurable for single-ended and differential

(unipolar/bipolar) operation.

The 4-wire serial interface connects directly to SPI™,

QSPI™, and Microwire™ devices, without using external

logic. A serial strobe output allows direct connection to

TMS320 family digital signal processors. The MAX192

uses either the internal clock or an external serial-

interface clock to perform successive approximation A/D

conversions. The serial interface can operate beyond

4MHz when the internal clock is used. The MAX192 has

an internal 4.096V reference with a drift of ±30ppm typi-

cal. A reference-buffer amplifier simplifies gain trim and

two sub-LSBs reduce quantization errors.

The MAX192 provides a hardwired SHDN pin and two

software-selectable power-down modes. Accessing the

serial interface automatically powers up the device, and

the quick turn-on time allows the MAX192 to be shut

down between conversions. By powering down

between conversions, supply current can be cut to

under 10µA at reduced sampling rates.

The MAX192 is available in 20-pin DIP and SO pack-

ages, and in a shrink-small-outline package (SSOP)

that occupies 30% less area than an 8-pin DIP. The

data format provides hardware and software compati-

bility with the MAX186/MAX188. For anti-aliasing filters,

consult the data sheets for the MAX291–MAX297.

________________________Applications

____________________________Features

19-0247; Rev. 1; 4/97

See last page for Typical Operating Circuit.

SPI and QSPI are trademarks of Motorola Corp.

Microwire is a trademark of National Semiconductor Corp.

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

Automotive

Pen-Entry Systems

Consumer Electronics

Portable Data Logging

Robotics

Battery-Powered Instruments, Battery

Medical Instruments

Management

________________________________________________________________ Maxim Integrated Products

_______________Ordering Information

___________________Pin Configuration

Low-Power, 8-Channel,

MAX192ACPP

MAX192BCPP

MAX192ACWP

MAX192BCWP

MAX192ACAP

MAX192BCAP

MAX192AEPP

MAX192BEPP

MAX192AEWP -40°C to +85°C

MAX192BEWP -40°C to +85°C

MAX192AEAP

MAX192BEAP

MAX192AMJP

MAX192BMJP

8-Channel Single-Ended or 4-Channel Differential

Inputs

Single +5V Operation

Low Power: 1.5mA (operating)

Internal Track/Hold, 133kHz Sampling Rate

Internal 4.096V Reference

4-Wire Serial Interface is Compatible

with SPI, QSPI, Microwire, and TMS320

20-Pin DIP, SO, SSOP Packages

Pin-Compatible 12-Bit Upgrade (MAX186/MAX188)

PART

TOP VIEW

Serial 10-Bit ADC

AGND

SHDN

-40°C to +85°C

-55°C to +125°C

CH0

CH1

CH2

CH3

CH4

CH5

CH6

CH7

TEMP. RANGE

2µA (power-down)

0°C to +70°C

DIP/SO/SSOP

MAX192

PIN-PACKAGE

20 Plastic DIP

20 Wide SO

20 SSOP

20 Plastic DIP

20 Wide SO

20 SSOP

20 CERDIP

SCLK

DIN

SSTRB

DOUT

DGND

AGND

REFADJ

VREF

INL (LSB)

±1/2

±1

±1/2

±1

±1/2

±1

±1/2

±1

±1/2

±1

±1/2

±1

±1/2

±1

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