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Maxim > Products > [Analog-to-Digital Converters] 
MAX1227, MAX1229, MAX1231
12-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 388kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX1227/MAX1229/MAX1231 are serial 12-bit analog-to-digital converters (ADCs) with an internal reference and an internal temperature sensor. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX1231 has 16 input channels, the MAX1229 has 12 input channels, and the MAX1227 has 8 input channels. All input channels are configurable for single-ended or differential inputs in unipolar or bipolar mode. All three devices operate from a +3V supply and contain a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port.

The MAX1231 is available in 28-pin 5mm x 5mm TQFN with exposed pad and 24-pin QSOP packages. The MAX1227/MAX1229 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range.

Complete the Signal Chain! Recommended Op Amps

An evaluation kit is available:  MAX1231EVC16, MAX1231EVKIT  

Key Features   Applications/Uses
  • Internal Temperature Sensor (±1°C Accuracy)
  • 16-Entry First-In/First-Out (FIFO)
  • Analog Multiplexer with True Differential Track/Hold
    • 16-, 12-, 8-Channel Single Ended
    • 8-, 6-, 4-Channel True Differential
    • (Unipolar or Bipolar)
  • Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Over Temperature
  • Scan Mode, Internal Averaging, and Internal Clock
  • Low-Power Single +3V Operation
    • 0.62mA at 300ksps
  • Internal 2.5V Reference or External Differential Reference
  • 10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
  • Space-Saving 28-Pin 5mm x 5mm TQFN Package

 
  		• Data Acquisition Systems
  		• Data Logging
  		• Industrial Control Systems
  		• Instrumentation
  		• Patient Monitoring
  		• System Supervision

    Key Specifications:  Precision ADCs (< 5Msps)
    Part Number Resolution
    (bits)    		 Input Chan. Conv. Rate
    (ksps)    		 Conv. Time
    (µs)    		 Data Bus
    (bits)    		 Ref.
    (V)    		 Diff. Inputs VSUPPLY
    (V)    		 ICC
    (mA)    		 Power
    (mW)    		 Standby Mode Package/Pins Price
    ADC max typ typ See Notes
    MAX1227  12 8 300 2.7 Serial
    Ext.
    Int.+2.5
    		 Yes
    3
    3.3
    		 0.62 1.86 No
    QSOP/16
    		 $4.45 @1k
    MAX1229  12
    QSOP/20
    		 $4.98 @1k
    MAX1231  16
    QSOP/24
    TQFN/28
    		 $5.43 @1k
    See All Precision ADCs (< 5Msps) (377)

    Diagram
    MAX1227, MAX1229, MAX1231: Functional Diagram
    Functional Diagram

    Evaluation Kits
  		• MAX1231EVC16, MAX1231EVKIT

    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: 1-56 of 56

    MAX1227 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1227ACEE    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1227ACEE-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1227BCEE    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1227BCEE-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1227ACEE+    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1227ACEE+T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1227BCEE+  
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1227BCEE+T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1227AEEE    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1227AEEE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1227BEEE    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1227BEEE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1227AEEE+    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1227AEEE+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1227BEEE+  
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1227BEEE+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1229 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1229ACEP    
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1229ACEP-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1229BCEP    
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1229BCEP-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1229ACEP+    
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1229ACEP+T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1229BCEP+  
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1229BCEP+T    
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1229AEEP    
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1229AEEP-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1229BEEP    
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1229BEEP-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1229AEEP+    
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1229AEEP+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1229BEEP+  
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1229BEEP+T    
    		Active QSOP;20 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0168 (PDF)
    Use pkgcode/variation: E20+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1231BCEG    
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1231BCEG-T    
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1231ACEG    
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1231ACEG-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1231ACEG+  
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231ACEG+T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1231BCEG+  
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231BCEG+T    
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231BEEG    
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1231BEEG-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1231AEEG    
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1231AEEG-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1231AEEG+  
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231AEEG+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1231BEEG+  
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231BEEG+T    
    		Active QSOP;24 pin;54 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0172 (PDF)
    Use pkgcode/variation: E24+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231BCTI    
    		Active TQFN;28 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0026 (PDF)
    Use pkgcode/variation: T2855-6*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1231BCTI-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1231BCTI+  
    		Active TQFN;28 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0026 (PDF)
    Use pkgcode/variation: T2855+6*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231BCTI+T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1231BETI    
    		Active TQFN;28 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0026 (PDF)
    Use pkgcode/variation: T2855-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1231BETI-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1231BETI+  
    		Active TQFN;28 pin;26 mm²
    Outline Drawing: 21-0140 (PDF)
    Land Pattern: 90-0026 (PDF)
    Use pkgcode/variation: T2855+6*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1231BETI+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    More Information
  		• For 10-bit Applications, please see MAX1027, MAX1029, MAX1031

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    Document Ref.: 19-2851; Rev 2; 2005-12-09
    This page last modified: 2009-10-13


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