(SP9841 / SP9842) BiCMOS DAC
SP9841/42
8-Bit Octal, 2-Quadrant Multiplying, BiCMOS DAC
s Replaces 8 Potentiometers and 8 Op Amps s Operates from Sing...
Description
SP9841/42
8-Bit Octal, 2-Quadrant Multiplying, BiCMOS DAC
s Replaces 8 Potentiometers and 8 Op Amps s Operates from Single +5V Supply s 6.3 MHz 2-Quadrant Multiplying Gain Bandwidth s No Signal Inversion s Eight Reference Inputs, Eight Voltage Outputs (SP9841) s Four Reference Inputs, Eight Voltage Outputs (SP9842) www.DataSheet4U.com s 3-Wire Serial Input s 0.8MHz Data Update Rate s +3.25 Volt Output Swing s Midscale Preset s Low 65 mW Power Dissipation (8mW/DAC) DESCRIPTION… The SP9841 and SP9842 are general purpose octal DACs in a single package. The SP9841 features eight individual reference inputs, while the SP9842 provides four pair of voltage reference inputs. Both parts feature 6.3MHz bandwidth, two–quadrant multiplication, and a three–wire serial interface. Other features include midscale preset, no signal inversion and low power dissipation from a single +5V supply. Devices are available in commercial and industrial temperature ranges.
DAC A
+
VINA VOUTA
8 Data Clock Serial Data Input Serial Data Output SERIAL REGISTER 8 8x8 DAC REGISTER
–
SP9842 Block Diagram
DAC A
+
Preset Load 4 LOGIC 8
8
–
VOUTA VINA/B VOUTB
VINH DAC H 8 VOUTH
Data Clock Serial Data Input Serial Data Output Preset Load 4 LOGIC 8 8 Decoded Address SERIAL REGISTER 8 8x8 DAC REGISTER
+
DAC B 8
–
Decoded Address SP9841
VREF Low
SP9841 Block Diagram
DAC G
+ –
VOUTG VING/H VOUTH
DAC H SP9842
+
8
–
VREF Low
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ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional o...
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