MAX1144ACAP+T datasheet, PDF - EEWORLD Datasheet

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MAX1144ACAP+T: DescriptionAnalog to Digital Converters - ADC 14-Bit 150ksps 2.2V Precision ADC; CategoryAnalog mixed-signal IC converter; File Size2MB，18 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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MAX1144ACAP+T Overview

Analog to Digital Converters - ADC 14-Bit 150ksps 2.2V Precision ADC

MAX1144ACAP+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
Maximum analog input voltage	6 V
Minimum analog input voltage	-6 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	3.3 V
Certification status	Not Qualified
Sampling rate	0.15 MHz
Sample and hold/Track and hold	TRACK
Maximum seat height	2 mm
Nominal supply voltage	3.3 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	NOT SPECIFIED
width	5.3 mm

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19-2465; Rev 0; 4/02

14-Bit ADCs, 150ksps, 3.3V Single Supply

General Description

The MAX1144/MAX1145 are 150ksps, 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, clock, and three general-purpose

digital output pins (for external multiplexer or PGA con-

trol) in a 20-pin SSOP package. The excellent dynamic

performance (THD

≥

90dB), high speed (150ksps in

bipolar mode), and low power (8.0mA) of these ADCs

make them ideal for applications such as industrial

process control, instrumentation, and medical applica-

tions.

The MAX1144 accepts input signals of 0 to +6V (unipo-

lar) or ±6V (bipolar), while the MAX1145 accepts input

signals of 0 to +2.048V (unipolar) or ±2.048V (bipolar).

Operating from a single 3.135V to 3.465V analog digital

supply, powerdown modes reduce current consump-

tion to 0.15mA at 10ksps and further reduce supply

current to less than 20µA slower data rates.

A serial strobe output (SSTRB) allows direct connection

to the TMS320 family digital-signal processors. The

MAX1144/MAX1145 user can select either the internal

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

perform analog-to-digital conversions.

The MAX1144/MAX1145 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 PGA.

The MAX1144/MAX1145 are available in a 20-pin SSOP

package and are fully specified over the -40°C to

+85°C temperature range.

Features

150ksps (Bipolar) and 125ksps (Unipolar)

Sampling ADC

14 Bits, No Missing Codes

1LSB INL Guaranteed

-100dB THD

3.3V Single-Supply Operation

Low-Power Operation

5mA typ (Unipolar Mode)

1.2µA Shutdown Mode

Software-Configurable Unipolar and Bipolar Input

Ranges

0 to +6V and ±6V (MAX1144)

0 to +2.048V and ±2.048V (MAX1145)

Internal or External Clock

SPI/QSPI/MICROWIRE TMS320-Compatible Serial

Interface

Three User-Programmable Logic Outputs

Small 20-Pin SSOP Package

MAX1144/MAX1145

Ordering Information

PART

MAX1144ACAP

MAX1144BCAP

MAX1144AEAP

MAX1144BEAP

TEMP

RANGE

0°C to +70°C

-40°C to +85°C

PIN-

PACKAGE

20 SSOP

INL

(LSB)

±1

±2

±1

±2

Ordering Information continued at end of data sheet.

Applications

Industrial Process Control

Industrial I/O Modules

Data-Acquisition Systems

Medical Instruments

Portable and Battery-Powered Equipment

Functional Diagram and Typical Application Circuit appear

at end of data sheet.

TOP VIEW

REF 1

AGND 3

DGND 5

SHDN 6

P2 7

P1 8

PO 9

Pin Configuration

20 AIN

19 AGND

18 CREF

17 CS

MAX1144

MAX1145

16 DIN

15 DV

14 DGND

13 SCLK

12 RST

11 DOUT

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor, Corp.

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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