MAX146, MAX147 +2.7V, Low-Power, 8-Channel, Serial 12-Bit ADCs

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MAX146, MAX147
+2.7V, Low-Power, 8-Channel, Serial 12-Bit ADCs

Overview

Technical Documents

Ordering Info

User Comments (0)

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Status

Active: In Production.

Data Sheet

FULL DATA SHEET

Download Rev 2 (PDF, 664kB)

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Description

FULL DATA SHEET

Download Rev 2 (PDF, 664kB)

E-Mail

The MAX146/MAX147 12-bit data-acquisition systems combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX146 operates from a single +2.7V to +3.6V supply; the MAX147 operates from a single +2.7V to +5.25V supply. Both devices' analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation.

The 4-wire serial interface connects directly to SPI™/ QSPI™ and MICROWIRE™ devices without external logic. A serial strobe output allows direct connection to TMS320-family digital signal processors. The MAX146/MAX147 use either the internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions.

The MAX146 has an internal 2.5V reference, while the MAX147 requires an external reference. Both parts have a reference-buffer amplifier with a ±1.5% voltage-adjustment range.

These devices provide a hard-wired SHDN-bar pin and a software-selectable power-down, and can be programmed to automatically shut down at the end of a conversion. Accessing the serial interface automatically powers up the MAX146/MAX147, and the quick turn-on time allows them to be shut down between all conversions. This technique can cut supply current to under 60µA at reduced sampling rates.

The MAX146/MAX147 are available in 20-pin DIP and SSOP packages.

For 4-channel versions of these devices, see the MAX1246/MAX1247 data sheet.

An evaluation kit is available: MAX146EVKIT, MAX147EVKIT

Key Features Applications/Uses

8-Channel Single-Ended or 4-Channel Differential Inputs
Single-Supply Operation

+2.7V to +3.6V (MAX146)
+2.7V to +5.25V (MAX147)

Internal 2.5V Reference (MAX146)
Low Power

1.2mA (133ksps, 3V supply)
54µA (1ksps, 3V supply)
1µA (power-down mode)

SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface
Software-Configurable Unipolar or Bipolar Inputs
20-Pin DIP/SSOP Packages

Battery-Powered Applications
Data Acquisition
Medical Instruments
Pen Digitizers
Portable Data Logging
Process Control

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)

SINAD
(dB)

THD
(dB)

SFDR
(dB)

DNL
(±LSB)

INL
(±LSB)

Package/Pins

Price

ADC

max

nominal

min

max

See Notes

MAX146

133

SPI

Both

2.5

3.6

2.5

1.25

-88

MAX147

5.25

See All Precision ADCs (< 5Msps) (384)

Diagram

Typical Operating Circuit

Application Notes

Application Note 1048 Adjustment-Free Inclinometer Operates On +2.7V

Application Note 1108 Understanding Single-Ended, Pseudo-Differential and Fully-Differential ADC Inputs

Evaluation Kits

MAX146EVKIT, MAX147EVKIT Evaluation Kit for the MAX146, MAX147

Design Guides

A/D Converters (PDF)

Reliability Reports

Show FIT data for:

Request Reliability Report for:

Software/Models

Adjustment-Free Inclinometer
This software implements an electrolytic tilt sensor based on the PIC 16C54 (trademark Microchip) processor and the Maxim MAX147 analog-to-digital converter(ADC).

Ordering Information

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.

Filters

Part Number: Package: Temperature: Tape and Reel

Devices: 1-50 of 61 <-- Previous 1 2 Next -->

MAX146 Free
Sample Buy Status

Package: TYPE PINS FOOTPRINT

DRAWING CODE/VAR *

Temp RoHS/Lead-Free?
Materials Analysis

MAX146BMJP

Active CDIP(N);20 pin;218.9 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J20-2*
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis

MAX146AMJP

Active CDIP(N);20 pin;218.9 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J20-2*
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis

MAX146BCPP

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX146ACPP

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX146BCPP+

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146ACPP+

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146AEPP+

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+4*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146BEPP+

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+4*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146BEPP

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX146AEPP

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX146BEAP/GH9-T

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX146BEAP/GH9

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX146ACAP+

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146BCAP+

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146BCAP+T

Active SSOP;20 pin

Land Pattern: Not Available

0°C to +70°C See data sheet

MAX146BCAP-T

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX146ACAP+T

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146ACAP

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX146BCAP

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX146ACAP-T

Active SSOP;20 pin

Land Pattern: Not Available

0°C to +70°C See data sheet

MAX146BEAP

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX146AEAP

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX146AEAP+

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146AEAP+T

Active SSOP;20 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet

MAX146AEAP-T

Active SSOP;20 pin

Land Pattern: Not Available

-40°C to +85°C See data sheet

MAX146BEAP+T

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146BEAP+

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX146BEAP-T

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX147 Free
Sample Buy Status

Package: TYPE PINS FOOTPRINT

DRAWING CODE/VAR *

Temp RoHS/Lead-Free?
Materials Analysis

MAX147EVC16-DIP

Active

Land Pattern: Not Available

See data sheet

MAX147EVC32-DIP

Active

Land Pattern: Not Available

See data sheet

MAX147BMJP

Active CDIP(N);20 pin;218.9 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J20-2*
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis

MAX147AMJP

Active CDIP(N);20 pin;218.9 mm²
Outline Drawing:21-0045 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: J20-2*
-55°C to +125°C RoHS/Lead-Free: No
Materials Analysis

MAX147BC/D

Active DICE;

Land Pattern: Not Available

See data sheet

MAX147ACPP

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX147ACPP+

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147BCPP+

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147BCPP

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

MAX147BEPP

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX147BEPP+

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+4*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147AEPP+

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20+4*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147AEPP

Active PDIP(N);20 pin;219.2 mm²
Outline Drawing:21-0043 (PDF)
Land Pattern: Not Applicable
Use pkgcode/variation: P20-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis

MAX147CCAP+

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147CCAP+T

Active SSOP;

Land Pattern: Not Available

0°C to +70°C See data sheet

MAX147CEAP+T

Active SSOP;

Land Pattern: Not Available

-40°C to +85°C See data sheet

MAX147CEAP+

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147BCAP+T

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147ACAP-T

Active SSOP;20 pin

Land Pattern: Not Available

0°C to +70°C See data sheet

MAX147ACAP+T

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147BCAP+

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20+1*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis

MAX147BCAP

Active SSOP;20 pin;57.9 mm²
Outline Drawing:21-0056 (PDF)
Land Pattern: 90-0094 (PDF)
Use pkgcode/variation: A20-1*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis

Devices: 1-50 of 61 <-- Previous 1 2 Next -->

Related Products

MAX146EVKIT, MAX147EVKIT Evaluation Kit for the MAX146, MAX147

MAX1246, MAX1247 +2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16

MAX144, MAX145 +2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAX

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Document Ref.: 19-0465 Rev 2; 2002-08-22
This page last modified: 2007-07-19