MAX1142ACAP+T datasheet, PDF - EEWORLD Datasheet

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MAX1142ACAP+T: DescriptionAnalog to Digital Converters - ADC 14-Bit 200ksps 4.2V Precision ADC; CategoryAnalog mixed-signal IC converter; File Size1MB，20 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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MAX1142ACAP+T Overview

Analog to Digital Converters - ADC 14-Bit 200ksps 4.2V Precision ADC

MAX1142ACAP+T Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	SSOP
package instruction	SSOP, SSOP20,.3
Contacts	20
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	11 weeks
Maximum analog input voltage	12 V
Minimum analog input voltage	-12 V
Maximum conversion time	240 µs
Converter type	ADC, SUCCESSIVE APPROXIMATION
JESD-30 code	R-PDSO-G20
JESD-609 code	e3
length	7.2 mm
Maximum linear error (EL)	0.0061%
Humidity sensitivity level	1
Number of analog input channels	1
Number of digits	14
Number of functions	1
Number of terminals	20
Maximum operating temperature	70 °C
Minimum operating temperature
Output bit code	BINARY, 2\'S COMPLEMENT BINARY
Output format	SERIAL
Package body material	PLASTIC/EPOXY
encapsulated code	SSOP
Encapsulate equivalent code	SSOP20,.3
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	5 V
Certification status	Not Qualified
Sampling rate	0.2 MHz
Sample and hold/Track and hold	TRACK
Maximum seat height	2 mm
Nominal supply voltage	5 V
surface mount	YES
technology	BICMOS
Temperature level	COMMERCIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	5.3 mm

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19-2037; Rev 0; 5/01

14-Bit ADC, 200ksps, +5V Single-Supply

with Reference

General Description

The MAX1142/MAX1143 are 200ksps, 14-bit ADCs.

These serially interfaced ADCs connect directly to

SPI™, QSPI™, and MICROWIRE™ devices without

external logic. They combine an input scaling network,

internal track/hold, a clock, +4.096V reference, and

three general-purpose digital output pins (for external

multiplexer or PGA control) in a 20-pin SSOP package.

The excellent dynamic performance (SINAD

≥

81dB),

high-speed (200ksps), and low power (7.5mA) of these

ADCs, make them ideal for applications such as indus-

trial process control, instrumentation, and medical

applications. The MAX1142 accepts input signals of 0

to +12V (unipolar) or ±12V (bipolar), while the

MAX1143 accepts input signals of 0 to +4.096V (unipo-

lar) or ±4.096V (bipolar). Operating from a single

+4.75V to +5.25V analog supply and a +4.75V to

+5.25V digital supply, power-down modes reduce cur-

rent consumption to 1mA at 10ksps and further reduce

supply current to less than 20µA at slower data rates.

A serial strobe output (SSTRB) allows direct connection

to the TMS320-family of digital signal processors. The

MAX1142/MAX1143 user can select either the internal

clock, or an external serial-interface clock for the ADC

to perform analog-to-digital conversions.

The MAX1142/MAX1143 feature internal calibration cir-

cuitry to correct linearity and offset errors. On-demand

calibration allows the user to optimize performance.

Three user-programmable logic outputs are provided

for the control of an 8-channel MUX or a PGA.

Features

200ksps (Bipolar) and 150ksps (Unipolar)

Sampling ADC

14-Bits, No Missing Codes

1LSB INL Guaranteed

81dB (min) SINAD

+5V Single-Supply Operation

Low Power Operation, 7.5mA (Unipolar Mode)

2.5µA Shutdown Mode

Software-Configurable Unipolar & Bipolar Input

Ranges

0 to +12V and ±12V (MAX1142)

0 to +4.096V and ±4.096V (MAX1143)

Internal or External Reference

Internal or External Clock

SPI/QSPI/MICROWIRE-Compatible Wire Serial

Interface

Three User-Programmable Logic Outputs

Small 20-Pin SSOP Package

MAX1142/MAX1143

Ordering Information

PART

MAX1142ACAP

TEMP. RANGE

0°C to +70°C

PIN-

PACKAGE

20 SSOP

INL

(LSB)

±1

±2

Applications

Industrial Process Control

Industrial I/O Modules

Data-Acquisition Systems

Medical Instruments

Portable and Battery-Powered Equipment

MAX1142BCAP

Ordering Information continued at end of data sheet.

Pin Configuration

TOP VIEW

REF 1

REFADJ 2

AGND 3

DGND 5

SHDN

20 AIN

19 AGND

18 CREF

MAX1142

MAX1143

16 DIN

15 DV

14 DGND

13 SCLK

12 RST

11 DOUT

Functional Diagram appears at end of data sheet.

Typical Application Circuit appears at end of data sheet.

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

P2 7

P1 8

P0 9

SSTRB 10

SSOP

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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