Maxim > Products > Analog-to-Digital Converters > MAX187, MAX189

MAX187, MAX189

+5V, Low-Power, 12-Bit Serial ADCs

See MAX1240 for 3V Applications

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX187/MAX189 serial 12-bit analog-to-digital converters (ADCs) operate from a single +5V supply and accept a 0V to 5V analog input. Both parts feature an 8.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed 3-wire serial interface.

The MAX187/MAX189 digitize signals at a 75ksps throughput rate. An external clock accesses data from the interface, which communicates without external hardware to most digital signal processors and microcontrollers. The interface is compatible with SPI™, QSPI™, and MICROWIRE™.

The MAX187 has an on-chip buffered reference, and the MAX189 requires an external reference. Both the MAX187 and MAX189 save space with 8-pin DIP and 16-pin SO packages. Power consumption is 7.5mW and reduces to only 10µW in shutdown.

Excellent AC characteristics and very low power consumption combined with ease of use and small package size make these converters ideal for remote DSP and sensor applications, or for circuits where power consumption and space are crucial.

Data Sheet

Download	Rev 0	(PDF, 192kB)
E-Mail

An evaluation kit is available: MAX187EVKIT

Key Features

12-Bit Resolution
±1/2 LSB Integral Nonlinearity (MAX187A/MAX189A)
Internal Track/Hold, 75kHz Sampling Rate
Single +5V Operation
Low Power:
- 2µA Shutdown Current
- 1.5mA Operating Current
Internal 4.096V Buffered Reference (MAX187)
3-Wire Serial Interface, Compatible with SPI, QSPI, and MICROWIRE
Small-Footprint 8-Pin DIP and 16-Pin SO

Applications/Uses

High-Accuracy Process Control
Isolated Data Acquisition
Portable Data Logging
Remote Digital Signal Processing

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)

SINAD
(dB)

THD
(dB)

SFDR
(dB)

DNL
(±LSB)

Package/Pins

Budgetary Price

ADC

max

nominal

min

max

See Notes

MAX187

SPI

S.E. Only

4.096

2.5

5.25

4.096

-80

MAX189

See All Precision ADCs (< 5Msps) (423)

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

Functional Diagram

Application Notes

Application Note 439		Interfacing the MAX187 to the TMS320C3X Evaluation Module
Application Note 827		PC Serial Port Drives 12-Bit A/D Converter

Product Guides

Signal Chain (PDF)

Wireless (PDF)

Reliability Reports

Reliability Report:	MAX189.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Devices: 51-79 / 79

<-- Previous 1 2 Next -->

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX189AEWE+T			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX189AEWE-T			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX189AMJA			Active	CDIP(N);8 pin;82.6 mm² Outline Drawing:21-0045 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: J8-2*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX189BC/D			Active	DICE SALES;NA pin;DICE; Land Pattern: Not Applicable Use pkgcode/variation: DICE*		See data sheet
MAX189BCPA			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX189BCPA+			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX189BCWE			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX189BCWE+			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX189BCWE+T			Active	W.SO;16 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX189BCWE-T			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX189BEPA			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX189BEPA+			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX189BEWE			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX189BEWE+			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX189BEWE+T			Active	W.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX189BEWE-T			Active	W.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX189BMJA			Active	CDIP(N);8 pin;82.6 mm² Outline Drawing:21-0045 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: J8-2*	-55°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX189CCPA			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX189CCPA+			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX189CCWE			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX189CCWE+			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX189CCWE+T			Active	W.SO;16 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX189CCWE-T			Active	W.SO;16 pin Land Pattern: Not Available	0°C to +70°C	See data sheet
MAX189CEPA			Active	PDIP(N);8 pin;81.9 mm² Outline Drawing:21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P8-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX189CEPA+			Active	PDIP;8 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX189CEWE			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX189CEWE+			Active	SOIC(W);16 pin;110.6 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0107 (PDF) Use pkgcode/variation: W16+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX189CEWE+T			Active	W.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX189CEWE-T			Active	W.SO;16 pin Land Pattern: Not Available	-40°C to +85°C	See data sheet

Devices: 51-79 / 79

<-- Previous 1 2 Next -->

Notes:

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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

MAX187EVKIT

Evaluation Kit for the MAX187

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