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Maxim > Products > [Analog-to-Digital Converters] 
MAX1112, MAX1113
+5V, Low-Power, Multichannel, Serial 8-Bit ADCs

Lowest-Power 8-Bit 4/8-Channel ADCs Have Internal Reference


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 296kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX1112/MAX1113 are low-power, 8-bit, 8-channel analog-to-digital converters (ADCs) that feature an internal track/hold, voltage reference, clock, and serial interface. They operate from a single +4.5V to +5.5V supply and consume only 135µA while sampling at rates up to 50ksps. The MAX1112's 8 analog inputs and the MAX1113's 4 analog inputs are software-configurable, allowing unipolar/bipolar and single-ended/differential operation.

Successive-approximation conversions are performed using either the internal clock or an external serial-interface clock. The full-scale analog input range is determined by the 4.096V internal reference, or by an externally applied reference ranging from 1V to VDD. The 4-wire serial interface is compatible with the SPI™, QSPI™, and MICROWIRE™ serial-interface standards. A serial-strobe output provides the end-of-conversion signal for interrupt-driven processors.

The MAX1112/MAX1113 have a software-programmable, 2µA automatic power-down mode to minimize power consumption. Using power-down, the supply current is reduced to 13µA at 1ksps, and only 82µA at 10ksps. Power-down can also be controlled using the SHDN-bar input pin. Accessing the serial interface automatically powers up the device.

The MAX1112 is available in 20-pin SSOP and DIP packages. The MAX1113 is available in small 16-pin QSOP and DIP packages.

An evaluation kit is available:  MAX1110EVKIT, MAX1112EVKIT  

Key Features   Applications/Uses
  • +4.5V to +5.5V Single Supply
  • Low Power:
    • 135µA at 50ksps
    • 13µA at 1ksps
  • 8-Channel Single-Ended or 4-Channel Differential Inputs (MAX1112)
  • 4-Channel Single-Ended or 2-Channel Differential Inputs (MAX1113)
  • Internal Track/Hold; 50kHz Sampling Rate
  • Internal 4.096V Reference
  • SPI/QSPI/MICROWIRE-Compatible Serial Interface
  • Software-Configurable Unipolar or Bipolar Inputs
  • Total Unadjusted Error:
    • ±1LSB (max)
    • ±0.3LSB (typ)
 

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
MAX1112  8 8 50 20 Serial
Ext.
Int.+4.096
 Yes 5 0.135 0.675 Yes
CDIP(N)/20
PDIP(N)/20
SSOP/20
 $1.86 @1k
MAX1113  4
CDIP(N)/16
PDIP(N)/16
QSOP/16
 $1.69 @1k
See All Precision ADCs (< 5Msps) (377)

Diagram
MAX1112, MAX1113: Typical Operating Circuit
Typical Operating Circuit

Evaluation Kits
  • MAX1110EVKIT, MAX1112EVKIT

    • Reliability Reports
  		• Show FIT data for:
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    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: 1-28 of 28

    MAX1112 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1112MJP    
    		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
    MAX1112C/D    
    		Active

    Land Pattern: Not Available

    		See data sheet
    MAX1112CPP    
    		Active PDIP(N);20 pin;217.1 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P20-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1112CPP+  
    		Active PDIP(N);20 pin;217.1 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P20+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1112EPP    
    		Active PDIP(N);20 pin;217.1 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P20-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1112EPP+  
    		Active PDIP(N);20 pin;217.1 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P20+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1112CAP    
    		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
    MAX1112CAP-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX1112CAP+  
    		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
    MAX1112CAP+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
    MAX1112EAP    
    		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
    MAX1112EAP-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
    MAX1112EAP+  
    		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
    MAX1112EAP+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1113 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1113MJE    
    		Active CDIP(N);16 pin;173.5 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J16-3*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1113C/D    
    		Active

    Land Pattern: Not Available

    		See data sheet
    MAX1113CPE    
    		Active PDIP(N);16 pin;158.4 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P16-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1113CPE+  
    		Active PDIP(N);16 pin;158.4 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P16+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1113EPE    
    		Active PDIP(N);16 pin;158.4 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1113EPE+  
    		Active PDIP(N);16 pin;158.4 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1113CEE    
    		Active QSOP;16 pin;30.9 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
    MAX1113CEE-T    
    		Active QSOP;16 pin;30.9 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
    MAX1113CEE+  
    		Active QSOP;16 pin;30.9 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
    MAX1113CEE+T    
    		Active QSOP;16 pin;30.9 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
    MAX1113EEE    
    		Active QSOP;16 pin;30.9 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
    MAX1113EEE-T    
    		Active QSOP;16 pin;30.9 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
    MAX1113EEE+  
    		Active QSOP;16 pin;30.9 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
    MAX1113EEE+T    
    		Active QSOP;16 pin;30.9 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

    Notes and Comments
    1LSB TUE

    Related Products
    MAX1110, MAX1111 +2.7V, Low-Power, Multichannel, Serial, 8-Bit ADCs
    MAX1108, MAX1109 Single-Supply, Low-Power, 2-Channel, Serial 8-Bit ADCs
    MAX1106, MAX1107 Single-Supply, Low-Power, Serial 8-Bit ADCs

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     Description 
     Key Features 
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    Document Ref.: 19-1231; Rev 1; 1998-10-01
    This page last modified: 2009-11-06


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