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MX7845
Complete, 12-Bit Multiplying DAC


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 1.5MB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail
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   Applications/Uses
  • Complete MDAC with Output Amplifier
  • 4-Quadrant Multiplication
  • Guaranteed Monotonic (TMIN to TMAX)
  • Matched Application Resistors
  • Small 0.3" 24-Pin DIP Package
 
  • Automatic Test Equipment
  • Digital Attenuators
  • Digital to 4-20mA Converters
  • Programmable Power Supplies
  • Programmable-Gain Amplifiers

Key Specifications:  Precision DACs (12-16 Bits)
Part Number Resolution Bits Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Oper. Temp.
(°C)
Price
max max See Notes
MX7845  12 1 Voltage- Buffered Ext. 2 Parallel - Full Word 15.75
-55 to +125
-40 to +85
0 to +70
$6.26 @1k
See All Precision DACs (12-16 Bits) (235)

Key Specifications:  Precision DACs (4-12 Bits)
Part Number Resolution Bits Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
Oper. Temp.
(°C)
Price
max max See Notes
MX7845  12 1 Voltage- Buffered Ext. 2 Parallel - Full Word 15.75
-55 to +125
-40 to +85
0 to +70
$6.26 @1k
See All Precision DACs (4-12 Bits) (261)

Diagram
MX7845: Functional Block Diagram
Functional Block Diagram

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    Document Ref.: 19-3986; Rev 0; 1991-10-01
    This page last modified: 2008-09-19


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