MX7845:Complete, 12-Bit Multiplying DAC

The MX7845 is a 12-bit, voltage-output, 4-quadrant, multiplying digital-to-analog converter (DAC). A precision internal output amplifier and thin-film resistors, laser-trimmed at the wafer level, maintain accuracy over the full operating temperature range. The output amplifier is internally compensated and drives ±10V into a 2kΩ load. The MX7845 has buffered latches that are easily interfaced with microprocessors. Data is transferred into the input register from a 12-bit-wide data path. The input registers are controlled by standard active-low CHIP SELECT (active-low CS) and active-low WRITE (active-low WR) signals. For stand-alone operation, the active-low CS and active-low WR inputs are grounded, making all latches transparent. All logic inputs are level-triggered and compatible with TTL and +5V CMOS logic levels. For a detailed description of MX7845 operation, refer to the MAX501/MAX502 data sheet.

Key Features
  • Complete MDAC with Output Amplifier
  • 4-Quadrant Multiplication
  • Guaranteed Monotonic (TMIN to TMAX)
  • Matched Application Resistors
  • Small 0.3" 24-Pin DIP Package
MX7845: Functional Block Diagram
MX7845: Functional Block Diagram
Applications/Uses
  • Automatic Test Equipment
  • Digital Attenuators
  • Digital to 4-20mA Converters
  • Programmable Power Supplies
  • Programmable-Gain Amplifiers
DataSheet
titleDownload file
MX7845 Data SheetMX7845.pdf
Parametrics
Part NumberResolution
(bits)
ChannelsOutput TypeReferenceINL
(±LSB)
InterfaceSupply Range
(V)
ICC
(mA)
Settling Time
(µs)
Package/PinsOper. Temp.
(°C)
Budgetary
Price
maxmaxmaxtypSee Notes
MX7845121Voltage- BufferedExt.2Parallel - Full Word15.75102.5CDIP(N)/24
PDIP(N)/24
PLCC/28
SOIC(W)/24
-55 to +125
-40 to +85
0 to +70
$8.47 @1k
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MX7845AEWGNo Longer AvailableSOIC(W),;24 pin;166.1 mm²-40°C to +85°CNo
MX7845AEWG-TNo Longer AvailableW.SO;24 pin-40°C to +85°CSee data sheet
MX7845AQNo Longer AvailableCDIP(N),;24 pin;264.3 mm²-40°C to +85°CNo
MX7845BEWGNo Longer AvailableSOIC(W),;24 pin;166.1 mm²-40°C to +85°CNo
MX7845BEWG-TNo Longer AvailableW.SO;24 pin-40°C to +85°CSee data sheet
MX7845BEWG/GH9No Longer AvailableSOIC(W),;24 pin;166.1 mm²-40°C to +85°CNo
MX7845BEWG/GH9-TNo Longer AvailableW.SO;-40°C to +85°CSee data sheet
MX7845BQNo Longer AvailableCDIP(N),;24 pin;264.3 mm²-40°C to +85°CNo
MX7845J/DNo Longer AvailableDICE SALES,;NA pin;DICE;0°C to +70°CSee data sheet
MX7845JNNo Longer AvailableMX7845JN+PDIP(N),;24 pin;158.4 mm²0°C to +70°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MX7845JN+ActivePDIP(N),;24 pin;158.4 mm²0°C to +70°CLead Free
MX7845JPNo Longer AvailableMX7845JP+PLCC,;28 pin;158 mm²0°C to +70°CNo
MX7845JP+ActivePLCC,;28 pin;158 mm²0°C to +70°CLead Free
MX7845JP+TActivePLCC,;28 pin;158 mm²0°C to +70°CLead Free
MX7845JP-TNo Longer AvailableMX7845JP+TPLCC;28 pin0°C to +70°CSee data sheet
MX7845JRNo Longer AvailableMX7845JR+SOIC(W),;24 pin;166.1 mm²0°C to +70°CNo
MX7845JR+ActiveSOIC(W),;24 pin;166.1 mm²0°C to +70°CLead Free
MX7845JR+TActiveW.SO;24 pin0°C to +70°CSee data sheet
MX7845JR-TNo Longer AvailableMX7845JR+TW.SO;24 pin0°C to +70°CSee data sheet
MX7845KNNo Longer AvailableMX7845KN+PDIP(N),;24 pin;158.4 mm²0°C to +70°CNo
Part NumberStatusRecommended ReplacementPackageTempRoHS
MX7845KN+ActivePDIP(N),;24 pin;158.4 mm²0°C to +70°CLead Free
MX7845KPNo Longer AvailableMX7845KP+PLCC,;28 pin;158 mm²0°C to +70°CNo
MX7845KP+ActivePLCC;28 pin0°C to +70°CSee data sheet
MX7845KP+TActivePLCC,;28 pin;158 mm²0°C to +70°CLead Free
MX7845KP-TNo Longer AvailableMX7845KP+TPLCC;0°C to +70°CSee data sheet
MX7845KRNo Longer AvailableMX7845KR+SOIC(W),;24 pin;166.1 mm²0°C to +70°CNo
MX7845KR+ActiveSOIC(W),;24 pin;166.1 mm²0°C to +70°CLead Free
MX7845KR+TActiveSOIC(W),;24 pin;166.1 mm²0°C to +70°CLead Free
MX7845KR-TNo Longer AvailableMX7845KR+TW.SO;24 pin0°C to +70°CSee data sheet
MX7845SQNo Longer AvailableCDIP(N),;24 pin;264.3 mm²-55°C to +125°CNo
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