MX7837:Complete, Dual, 12-Bit Multiplying DAC with 8-Bit Bus Interface

Dual, Parallel, Voltage-Output DACs in a SO Package

The MX7837/MX7847 are dual, 12-bit, multiplying, voltage-output digital-to-analog converters (DACs). Each DAC has an output amplifier and a feedback resistor. The output amplifier is capable of developing ±10V across a 2kΩ load. The amplifier feedback resistor is internally connected to VOUT on the MX7847. No external trims are required to achieve full 12-bit performance over the entire operating temperature range. The MX7847 has a 12-bit parallel data input, whereas the MX7837 operates with a double-buffered 8-bit-bus interface that loads data in two write operations. All logic signals are level triggered and are TTL and CMOS compatible. Fast timing specifications make these DACs compatible with most microprocessors.

Key Features
  • Two 12-Bit Multiplying DACs with Buffered Voltage Output
  • Specified with ±12V or ±15V Supplies
  • No External Adjustments Required
  • Fast Timing Specifications
  • 24-Pin DIP and SO Packages
  • 12-Bit Parallel Interface (MX7847)
  • 8-Bit + 4-Bit Interface (MX7837)
MX7837, MX7847: Typical Operating Circuits
MX7837, MX7847: Typical Operating Circuits
Applications/Uses
  • Digital Gain and Offset Control
  • Industrial Process Controls
  • Machine- and Motion-Control Systems
DataSheet
titleDownload file
MX7837-MX7847 Data SheetMX7837-MX7847.pdf
Parametrics
Part NumberResolution
(bits)
ChannelsOutput TypeReferenceINL
(±LSB)
InterfaceSupply Range
(V)
ICC
(mA)
Settling Time
(µs)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
maxmaxmaxtypSee Notes
MX7837122Voltage- BufferedExt.1Parallel - Byte Wide16.5104CDIP(N)/24
PDIP(N)/24
SOIC(W)/24
-55 to +125
-40 to +85
0 to +70
$11.31 @1k
MX7847Parallel - Full WordCDIP(N)/24
PDIP(N)/24
SOIC(W)/24
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MX7837ANNo Longer AvailableMX7837AN+PDIP(N),;24 pin;265.4 mm²-40°C to +85°CNo
MX7837AN+ActivePDIP(N),;24 pin;265.4 mm²-40°C to +85°CLead Free
MX7837AQNo Longer AvailableCDIP(N),;24 pin;264.3 mm²-40°C to +85°CNo
MX7837ARNo Longer AvailableMX7837AR+SOIC(W),;24 pin;166.1 mm²-40°C to +85°CNo
MX7837AR+ActiveSOIC(W),;24 pin;166.1 mm²-40°C to +85°CLead Free
MX7837AR+TActiveSOIC(W),;24 pin;166.1 mm²-40°C to +85°CLead Free
MX7837AR-TNo Longer AvailableMX7837AR+TW.SO;24 pin-40°C to +85°CSee data sheet
MX7837BNNo Longer AvailableMX7837BN+PDIP(N),;24 pin;265.4 mm²-40°C to +85°CNo
MX7837BN+ActivePDIP(N),;24 pin;265.4 mm²-40°C to +85°CLead Free
MX7837BQNo Longer AvailableCDIP(N),;24 pin;264.3 mm²-40°C to +85°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MX7837BRNo Longer AvailableMX7837BR+SOIC(W),;24 pin;166.1 mm²-40°C to +85°CNo
MX7837BR+ActiveSOIC(W),;24 pin;166.1 mm²-40°C to +85°CLead Free
MX7837BR+TActiveSOIC(W),;24 pin;166.1 mm²-40°C to +85°CLead Free
MX7837BR-TNo Longer AvailableMX7837BR+TSOIC(W),;24 pin;166.1 mm²-40°C to +85°CNo
MX7837JNNo Longer AvailableMX7837JN+PDIP(N),;24 pin;265.4 mm²0°C to +70°CNo
MX7837JN+ActivePDIP(N),;24 pin;265.4 mm²0°C to +70°CLead Free
MX7837JRNo Longer AvailableMX7837JR+SOIC(W),;24 pin;166.1 mm²0°C to +70°CNo
MX7837JR+ActiveSOIC(W),;24 pin;166.1 mm²0°C to +70°CLead Free
MX7837JR+TActiveSOIC(W),;24 pin;166.1 mm²0°C to +70°CLead Free
MX7837JR-TNo Longer AvailableMX7837JR+TW.SO;24 pin0°C to +70°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MX7837KNNo Longer AvailableMX7837KN+PDIP(N),;24 pin;265.4 mm²0°C to +70°CNo
MX7837KN+ActivePDIP(N),;24 pin;265.4 mm²0°C to +70°CLead Free
MX7837KRNo Longer AvailableMX7837KR+SOIC(W),;24 pin;166.1 mm²0°C to +70°CNo
MX7837KR+ActiveSOIC(W),;24 pin;166.1 mm²0°C to +70°CLead Free
MX7837KR+TActiveSOIC(W),;24 pin;166.1 mm²0°C to +70°CLead Free
MX7837KR-TNo Longer AvailableMX7837KR+TSOIC(W),;24 pin;166.1 mm²0°C to +70°CNo
MX7837SQNo Longer AvailableCDIP(N),;24 pin;264.3 mm²-55°C to +125°CNo
MX7837TQNo Longer AvailableCDIP(N),;24 pin;264.3 mm²-55°C to +125°CNo
MX7837-MX7847.pdf MX7847
Damage from a Lightning Bolt or a Spark—It Depends on How Tall You Are! MAX5484
How Signal Chains and PLCs Impact Our Lives MAX5421
Typically Testing “Typical” in a Typical Manner MX7847
MX7837-MX7847.pdf MX7847