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Maxim > Products > [Analog-to-Digital Converters] 
MAX1290, MAX1292
400ksps, +5V, 8-/4-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface

Smallest, Low-Power, Parallel-Output 12-Bit ADCs


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Data Sheet
FULL DATA SHEET (PDF, 392kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX1290/MAX1292 low-power, 12-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed, byte-wide parallel interface. The devices operate with a single +5V analog supply and feature a VLOGIC pin that allows them to interface directly with a +2.7V to +5.5V digital supply.

Power consumption is only 10mW (VDD = VLOGIC) at a 400ksps max sampling rate. Two software-selectable power-down modes enable the MAX1290/MAX1292 to be shut down between conversions; accessing the parallel interface returns them to normal operation. Powering down between conversions can cut supply current to under 10µA at reduced sampling rates.

Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation. In single-ended mode, the MAX1290 has eight input channels and the MAX1292 has four input channels (four and two input channels, respectively, when in pseudo-differential mode).

Excellent dynamic performance and low power, combined with ease of use and small package size, make these converters ideal for battery-powered and data-acquisition applications or for other circuits with demanding power consumption and space requirements.

The MAX1290/MAX1292 tri-states active-low INT when active-low CS goes high. Refer to MAX1262/MAX1264 if tri-stating active-low INT is not desired.

The MAX1290 is available in a 28-pin QSOP package, while the MAX1292 comes in a 24-pin QSOP. For pin-compatible +3V, 12-bit versions, refer to the MAX1291/MAX1293 data sheet.

Key Features   Applications/Uses
  • 12-Bit Resolution, ±0.5 LSB Linearity
  • +5V Single-Supply Operation
  • User-Adjustable Logic Level (+2.7V to +5.5V)
  • Internal +2.5V Reference
  • Software-Configurable Analog Input Multiplexer
    • 8-Channel Single-Ended/
    • 4-Channel Pseudo-Differential (MAX1290)
    • 4-Channel Single-Ended/
    • 2-Channel Pseudo-Differential (MAX1292)
  • Software-Configurable Unipolar/Bipolar Analog Inputs
  • Low Current:
    • 2.5mA (400ksps)
    • 1.0mA (100ksps)
    • 400µA (10ksps)
    • 2µA (Shutdown)
  • Internal 6MHz Full-Power Bandwidth Track/Hold
  • Byte-Wide Parallel (8 + 4) Interface
  • Small Footprint:
    • 28-Pin QSOP (MAX1290)
    • 24-Pin QSOP (MAX1292)

 
  		• Data Acquisition Systems
  		• Data Logging
  		• Energy Management
  		• Industrial Controls Systems
  		• Patient Monitoring
  		• Touch Screens

    Key Specifications:   Precision ADCs (< 5Msps)
    Part Number ADC Resolution (Bits) Input Channels Conv. Rate (ksps) Max. Conv. Time (µs) Data Bus (Bits) Ref. (V) Diff. In Supply Voltage (V) Typ. Supply Current (mA) Typ. Power (mW) Standby Mode Package Price**
    MAX1290  12 8 400 1.9 µP/8 Ext.
    Int.+2.5     		Yes 5 1.9 9.5 Yes QSOP/28 $5.99 @ 1k
    MAX1292  4 QSOP/24 $5.74 @ 1k
    See All Precision ADCs (< 5Msps) (375)
    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
    MAX1290, MAX1292: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 748: The ABCs of ADCs: Understanding How ADC Errors Affect System Performance - MAX1290
  		• Application Note 1080: Understanding SAR ADCs - MAX1290

    Evaluation Kits
  		• MAX1292EVKIT

    Design Guides
  		• A/D Converters (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * 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.


    Devices: 1-32 of 32

    MAX1290 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1290ACEI  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1290ACEI-T  


    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1290BCEI  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1290BCEI-T  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1290ACEI+  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1290ACEI+T  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1290BCEI+  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1290BCEI+T  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1290AEEI  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1290AEEI-T  


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1290BEEI  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1290BEEI-T  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1290AEEI+  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1290AEEI+T  


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1290BEEI+  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1290BEEI+T  
    		QSOP;28 pin;62 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0173 (PDF)
    Use pkgcode/variation: E28+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1292 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1292ACEG  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1292ACEG-T  


    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1292BCEG  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1292BCEG-T  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1292ACEG+  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1292ACEG+T  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1292BCEG+  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1292BCEG+T  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1292AEEG  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1292AEEG-T  


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1292BEEG  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1292BEEG-T  


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1292AEEG+  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1292AEEG+T  


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1292BEEG+  
    		QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1292BEEG+T  


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    More Information
  		• New Product Press Release 1999-10-21 

    Related Products
    MAX1291, MAX1293 250ksps, +3V, 8-/4-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
    MAX1294, MAX1296 420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface

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     Description 
     Key Features 
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     Key Specifications 
     Diagram 

    		 Data Sheet 
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     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
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    Document Ref.: 19-1531; Rev 3; 2003-03-27
    This page last modified: 2007-07-23


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