MAX1237LEUA+ datasheet, PDF - EEWORLD Datasheet

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MAX1237LEUA+: DescriptionIC adc 12bit 4ch 2wire ser 8umax; CategoryAnalog mixed-signal IC converter; File Size266KB，22 Pages; ManufacturerMaxim; Websitehttps://www.maximintegrated.com/en.html; Environmental Compliance

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MAX1237LEUA+ Overview

IC adc 12bit 4ch 2wire ser 8umax

MAX1237LEUA+ Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Maxim
Parts packaging code	SOIC
package instruction	TSSOP,
Contacts	8
Reach Compliance Code	compliant
ECCN code	EAR99
Maximum analog input voltage	1.024 V
Minimum analog input voltage	-1.024 V
Maximum conversion time	7.5 µs
Converter type	ADC, SUCCESSIVE APPROXIMATION
JESD-30 code	S-PDSO-G8
JESD-609 code	e4
length	3 mm
Maximum linear error (EL)	0.0244%
Humidity sensitivity level	1
Number of analog input channels	4
Number of digits	12
Number of functions	1
Number of terminals	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Output bit code	BINARY, 2\'S COMPLEMENT BINARY
Output format	SERIAL
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Package shape	SQUARE
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Sampling rate	0.0944 MHz
Sample and hold/Track and hold	TRACK
Maximum seat height	1.1 mm
Nominal supply voltage	3 V
surface mount	YES
technology	BICMOS
Temperature level	INDUSTRIAL
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3 mm

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19-2333; Rev 7; 5/10

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,

4-/12-Channel, 2-Wire Serial, 12-Bit ADCs

General Description

The MAX1236–MAX1239 low-power, 12-bit, multichan-

nel analog-to-digital converters (ADCs) feature internal

track/hold (T/H), voltage reference, clock, and an

C-compatible 2-wire serial interface. These devices

operate from a single supply of 2.7V to 3.6V (MAX1237/

MAX1239) or 4.5V to 5.5V (MAX1236/MAX1238) and

require only 670µA at the maximum sampling rate of

94.4ksps. Supply current falls below 230µA for sam-

pling rates under 46ksps. AutoShutdown™ powers

down the devices between conversions, reducing sup-

ply current to less than 1µA at low throughput rates.

The MAX1236/MAX1237 have four analog input chan-

nels each, while the MAX1238/MAX1239 have 12 ana-

log input channels each. The fully differential analog

inputs are software configurable for unipolar or bipolar,

and single-ended or differential operation.

The full-scale analog input range is determined by the

internal reference or by an externally applied reference

voltage ranging from 1V to V

. The MAX1237/

MAX1239 feature a 2.048V internal reference and the

MAX1236/MAX1238 feature a 4.096V internal reference.

The MAX1236/MAX1237 are available in an 8-pin µMAX

package. The MAX1238/MAX1239 are available in a 16-

pin QSOP package. The MAX1236–MAX1239 are guar-

anteed over the extended temperature range

(-40°C to +85°C). For pin-compatible 10-bit parts, refer to

the MAX1136–MAX1139 data sheet. For pin-compatible

8-bit parts, refer to the MAX1036–MAX1039 data sheet.

Features

♦

High-Speed I

C-Compatible Serial Interface

400kHz Fast Mode

1.7MHz High-Speed Mode

♦

Single-Supply

2.7V to 3.6V (MAX1237/MAX1239)

4.5V to 5.5V (MAX1236/MAX1238)

♦

Internal Reference

2.048V (MAX1237/MAX1239)

4.096V (MAX1236/MAX1238)

♦

External Reference: 1V to V

♦

Internal Clock

♦

4-Channel Single-Ended or 2-Channel Fully

Differential (MAX1236/MAX1237)

♦

12-Channel Single-Ended or 6-Channel Fully

Differential (MAX1238/MAX1239)

♦

Internal FIFO with Channel-Scan Mode

♦

Low Power

670µA at 94.4ksps

230µA at 40ksps

60µA at 10ksps

6µA at 1ksps

0.5µA in Power-Down Mode

♦

Software-Configurable Unipolar/Bipolar

♦

Small Packages

8-Pin

µMAX

(MAX1236/MAX1237)

16-Pin QSOP (MAX1238/MAX1239)

MAX1236–MAX1239

Applications

Handheld Portable

Applications

Medical Instruments

Battery-Powered Test

Equipment

Solar-Powered Remote

Systems

Received-Signal-Strength

Indicators

System Supervision

PART

MAX1236EUA+

MAX1237EUA+

MAX1238EEE+

MAX1238EEE/V+

Ordering Information

TEMP RANGE

-40°C to +85°C

PIN-

PACKAGE

8 µMAX

16 QSOP

C SLAVE

ADDRESS

0110100

0110101

Selector Guide

PART

MAX1236

MAX1237

MAX1238

MAX1239

INTERNAL

SUPPLY

INPUT

REFERENCE VOLTAGE

CHANNELS

(V)

4.096

2.048

4.096

2.048

4.5 to 5.5

2.7 to 3.6

4.5 to 5.5

2.7 to 3.6

INL

(LSB)

±1

MAX1239EEE+

+Denotes

a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified part.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Pin Configurations and Typical Operating Circuit appear at

end of data sheet.

________________________________________________________________

Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

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