Maxim > Products > Analog-to-Digital Converters > MAX1272, MAX1273

MAX1272, MAX1273

Fault-Protected, 12-Bit ADCs with Software-Selectable Input Range

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
MAX1272	Active: In Production. See Ordering Information for details.
MAX1273	Active: In Production. See Ordering Information for details.

Description

The MAX1272/MAX1273 multirange 12-bit data-acquisition systems (DAS) operate with a single 5V supply. The software-programmable analog input accepts a variety of voltage ranges: ±10V, ±5V, 0 to 10V, 0 to 5V for the MAX1272; ±V_REF, ±V_REF / 2, 0 to V_REF, 0 to V_REF / 2 for the MAX1273. The software-selectable extended analog input range increases the effective dynamic range to 14 bits and provides the flexibility to interface 4-20mA powered sensors directly to a single 5V system. In addition, the MAX1272 provides fault protection to ±12V. Other features include a 5MHz track/hold (T/H) bandwidth, 87ksps throughput rate, and internal (4.096V) or external (2.40V to 4.18V) reference.

The MAX1272/MAX1273 serial interfaces connect directly to SPI/QSPI™/MICROWIRE®-compatible devices without any external logic.

Four software-programmable power-down modes (delayed standby, immediate standby, delayed full power-down, and immediate full power-down) provide low-current shutdown between conversions. In standby mode, the internal reference buffer remains active, thus eliminating startup delay.

The MAX1272/MAX1273 are available in an 8-pin µMAX® package. Both devices are available in the extended (-40°C to +85°C) temperature range.

Data Sheet

Download	Rev 3	(PDF, 1.1MB)
E-Mail

An evaluation kit is available: MAX1272EVSYS

Key Features

Four Software-Selectable Input Ranges
- MAX1272: 0 to 10V, 0 to 5V, ±10V, ±5V
- MAX1273: 0 to V_REF, 0 to V_REF / 2, ±V_REF, ±V_REF / 2
12-Bit Resolution, No Missing Codes
5V Single-Supply Operation
SPI/QSPI/MICROWIRE-Compatible 3-Wire Interface
87ksps Sampling Rate
±12V Fault-Protected Analog Input (MAX1272)
Internal (4.096V) or External (2.4V to 4.18V) Reference
Low Power
- 1.5mA at 87ksps
- 0.4mA at 10ksps
- 0.2mA at 1ksps
Four Power-Down Modes
8-Pin PDIP Package

Applications/Uses

Automatic Testing
Battery-Powered Instruments
Data Acquisition Systems
Industrial Control Systems
Medical Instruments
Robotics

Key Specifications:

Precision ADCs (< 5Msps)

Part Number

Resolution
(bits)

Input Chan.

Conv. Rate
(ksps)

Data Bus
(bits)

Diff/S.E. Input

Internal V_REF
(V)

External V_REF
(V)

Unipolar V_IN
(V)

Bipolar V_IN
(±V)

SNR
(dB)

SINAD
(dB)

THD
(dB)

SFDR
(dB)

DNL
(±LSB)

INL
(±LSB)

Package/Pins

Budgetary Price

ADC

max

nominal

min

max

See Notes

MAX1272

SPI

S.E. Only

4.096

2.4

4.18

-87

0.35

0.3

µMAX/8

PDIP(N)/8

MAX1273

4.096

2.048

µMAX/8

PDIP(N)/8

See All Precision ADCs (< 5Msps) (417)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

Product Guides

Signal Chain (PDF)

Reliability Reports

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Software/Models

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Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1272CPA		N/A	No Longer Available	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX1272CPA+		N/A	No Longer Available	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1272CUA+			Active	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1272CUA+T			Active	uMAX; Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX1272EPA		N/A	No Longer Available	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1272EPA+		N/A	No Longer Available	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1272EUA+			Active	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1272EUA+T			Active	uMAX; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX1273CPA		N/A	No Longer Available	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX1273CPA+		N/A	No Longer Available	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1273CUA+			Active	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1273CUA+T			Active	uMAX; Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX1273EPA		N/A	No Longer Available	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1273EPA+		N/A	No Longer Available	PDIP(N);8 pin;79.7 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1273EUA+			Active	µMAX;8 pin;16.2 mm² Outline Drawing:21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1273EUA+T			Active	uMAX; Land Pattern: Not Available	-40°C to +85°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Evaluation Kits

MAX1272EVSYS

Evaluation Kit/Evaluation System for the MAX1272 and MAX1273

More Information

New Product Press Release

[ 2003-07-28 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-2921 Rev 3; 2012-01-11
This page last modified: 2012-01-12