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Complete, 12-Bit Multiplying DAC

Product Details

Key Features

Applications/Uses

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 12
# Channels 1
Interface Parallel - Full Word
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 2
Supply Range (V) (max) 15.75
ICC (mA) (max) 10
Settling Time (µs) (typ) 2.5
Package/Pins PLCC/28
SOIC (W)/24
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Budgetary
Price (See Notes)
8.89
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Simplified Block Diagram

Technical Docs

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 12
# Channels 1
Interface Parallel - Full Word
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 2
Supply Range (V) (max) 15.75
ICC (mA) (max) 10
Settling Time (µs) (typ) 2.5
Package/Pins PLCC/28
SOIC (W)/24
Oper. Temp. (°C) -55 to +125
-40 to +85
0 to +70
Budgetary
Price (See Notes)
8.89

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

Applications/Uses

  • Automatic Test Equipment
  • Digital Attenuators
  • Digital to 4-20mA Converters
  • Programmable Power Supplies
  • Programmable-Gain Amplifiers

Description

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.

Simplified Block Diagram

MX7845: Functional Block Diagram MX7845: Functional Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .