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Features
- Complete Dual 12-Bit DAC Comprising
Two 12-Bit CMOS DACs
On-Chip Voltage Reference
Output Amplifiers
Reference Buffer Amplifiers
- Parallel Loading Structure: AD7247
- (8 + 4) Loading Structure: AD7237
- Single or Dual Supply Operation
- Low Power - 165 mW typ in Single Supply
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The AD7237A / AD7247A is an enhanced version of the industry standard AD7237 / AD7247. Improvements include operation from 12 V to 15 V supplies, faster interface times and better reference variations with VDD . Additional features include faster settling times.
The AD7237A / AD7247A is a complete, dual, 12-bit, voltage output digital-to-analog converter with output amplifiers and Zener voltage reference on a monolithic CMOS chip. No external user trims are required to achieve full specified performance.
Both parts are microprocessor compatible, with high speed data latches and interface logic. The AD7247A accepts 12-bit parallel data which is loaded into the respective DAC latch using the WR input and a separate Chip Select input for each DAC. The AD7237A has a double buffered interface structure and an 8-bit wide data bus with data loaded to the respective input latch in two write operations. An asynchronous LDAC signal on the AD7237A updates the DAC latches and analog outputs.
A REF OUT/REF IN function is provided which allows either the on-chip 5 V reference or an external reference to be used as a reference voltage for the part. For single supply operation, two output ranges of 0 V to +5 V and 0 V to +10 V are available, while these two ranges plus an additional ±5 V range are available with dual supplies. The output amplifiers are capable of developing +10 V across a 2 k(Ω) load to GND.
The AD7237A / AD7247A is fabricated in Linear Compatible CMOS (LC2MOS), an advanced, mixed technology process that combines precision bipolar circuits with low power CMOS logic. Both parts are available in a 24-pin, 0.3" wide plastic and hermetic dual-in-line package (DIP) and are also packaged in a 24-lead small outline (SOIC) package.
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AD7237
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Solutions Bulletin & Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7237AARZ |
24-Lead SOIC (Wide)
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| AD7237AARZ-REEL |
24-Lead SOIC (Wide)
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| AD7237AARZ-REEL7 |
24-Lead SOIC (Wide)
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| AD7237ABRZ |
24-Lead SOIC (Wide)
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| AD7237ABRZ-REEL |
24-Lead SOIC (Wide)
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| AD7237AQ |
24-Lead CerDIP (Narrow 0.3 Inch)
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| AD7237ATQ |
24-Lead CerDIP (Narrow 0.3 Inch)
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| AD7237JNZ |
24-Lead PDIP
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| AD7237JRZ |
24-Lead SOIC (Wide)
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| AD7237KRZ |
24-Lead SOIC (Wide)
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- AD7237AARZ
- Pin/Package Drawing
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24-Lead SOIC (Wide)
- Documentation
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HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- AD7237AARZ-REEL
- Pin/Package Drawing
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24-Lead SOIC (Wide)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- AD7237AARZ-REEL7
- Pin/Package Drawing
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24-Lead SOIC (Wide)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD7237ABRZ
- Pin/Package Drawing
-
24-Lead SOIC (Wide)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- AD7237ABRZ-REEL
- Pin/Package Drawing
-
24-Lead SOIC (Wide)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- AD7237AQ
- Pin/Package Drawing
-
24-Lead CerDIP (Narrow 0.3 Inch)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD7237ATQ
- Pin/Package Drawing
-
24-Lead CerDIP (Narrow 0.3 Inch)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD7237JNZ
- Pin/Package Drawing
-
24-Lead PDIP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD7237JRZ
- Pin/Package Drawing
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24-Lead SOIC (Wide)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
- AD7237KRZ
- Pin/Package Drawing
-
24-Lead SOIC (Wide)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
Feb 7, 2011
- 10_0003
Halogen Free Material Change for SOIC Wide Body Products Assembled at Amkor
AD7237AARZ
PRODUCTION
AD7237AARZ-REEL
PRODUCTION
AD7237AARZ-REEL7
PRODUCTION
AD7237ABRZ
PRODUCTION
AD7237ABRZ-REEL
PRODUCTION
AD7237JRZ
PRODUCTION
AD7237KRZ
PRODUCTION
Feb 8, 2010
- 04_0080
Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.
AD7237AARZ
PRODUCTION
AD7237AARZ-REEL
PRODUCTION
AD7237AARZ-REEL7
PRODUCTION
AD7237ABRZ
PRODUCTION
AD7237ABRZ-REEL
PRODUCTION
AD7237AQ
AD7237ATQ
AD7237JNZ
PRODUCTION
AD7237JRZ
PRODUCTION
AD7237KRZ
PRODUCTION
Nov 7, 2012
- 12_0199
Qualification of New Conductive Silver-Filled Glass Die Attach Adhesive for Cerdip and Ceramic Flatpack (Cerpack) Packages.
Nov 9, 2011
- 11_0050
Transfer of ADI Hermetics Assembly location from Paranaque, Manila to General Trias, Cavite Philippines
AD7237AQ
AD7237ATQ
Nov 9, 2011
- 11_0182
Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines
AD7237AQ
AD7237ATQ
Mar 7, 2019
- 19_0046
Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek
Aug 19, 2009
- 07_0024
Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad
AD7237JNZ
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
Feb 7, 2011
- 10_0003
Halogen Free Material Change for SOIC Wide Body Products Assembled at Amkor
AD7237AARZ
PRODUCTION
AD7237AARZ-REEL
PRODUCTION
AD7237AARZ-REEL7
PRODUCTION
AD7237ABRZ
PRODUCTION
AD7237ABRZ-REEL
PRODUCTION
AD7237JRZ
PRODUCTION
AD7237KRZ
PRODUCTION
Feb 8, 2010
- 04_0080
Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.
AD7237AARZ
PRODUCTION
AD7237AARZ-REEL
PRODUCTION
AD7237AARZ-REEL7
PRODUCTION
AD7237ABRZ
PRODUCTION
AD7237ABRZ-REEL
PRODUCTION
AD7237AQ
AD7237ATQ
AD7237JNZ
PRODUCTION
AD7237JRZ
PRODUCTION
AD7237KRZ
PRODUCTION
Nov 7, 2012
- 12_0199
Qualification of New Conductive Silver-Filled Glass Die Attach Adhesive for Cerdip and Ceramic Flatpack (Cerpack) Packages.
Nov 9, 2011
- 11_0050
Transfer of ADI Hermetics Assembly location from Paranaque, Manila to General Trias, Cavite Philippines
Nov 9, 2011
- 11_0182
Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines
Mar 7, 2019
- 19_0046
Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek
Aug 19, 2009
- 07_0024
Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad
AD7237JNZ
PRODUCTION
Tools & Simulations 1
Precision DAC Error Budget Tool
