S9418P View Datasheet(PDF) - Summit Microelectronics
Part Name
Description
MFG CO.
S9418P
Summit Microelectronics
'S9418P' PDF : 10 Pages View PDF
SUMMIT
MICROELECTRONICS, Inc.
Quad 8-Bit Nonvolatile DACPOT™ Electronic Potentiometer
With a Mute Control Input
S9418
FEATURES
• Four 8-Bit DACs
— Differential Non-linearity: ±0.5LSB max
— Integral Non-Linearity Error: ±1LSB max
• Each DAC has Independent Reference Inputs
— Output Buffer Amplifiers Swing Rail-to-Rail
— Ground to VDD Reference Input Range
• Each DAC’s Digital Inputs Maintained in
EEPROM
• Power-On Reset Reloads Registers with Non-
volatile Data
• Simple Serial Interface for Reading and Writing
DAC values, SPI™ and QSPI™ compatible.
• Fully operational from 2.7V to 5.5V
• Low Power, 4mW max at +5V
OVERVIEW
The S9418 DACPOT™ is a serial input, voltage output,
quad 8-bit digital to analog converter (DAC). The S9418
operates from a single 2.7V to 5.5V supply. Internal
precision buffers swing rail-to-rail and the reference input
range includes both ground and the positive supply.
The S9418 integrates four 8-bit DACs and their associ-
ated circuits which include; an enhanced unity gain opera-
tional amplifier output, an 8-bit data latch, an 8-bit non-
volatile register and an industry standard serial interface
for reading and writing data to the DACs’ data latches and
registers. The DACs are independently programmable
and each has its own electrically isolated Vreference
inputs.
BLOCK DIAGRAM
VDD 3
Memory Control
8-Bit E2PROM
DAC SECTION 0
Serial
Data In
8-Bit Data Register
8-Bit DAC
AMP
2 VREFH0
18 VOUT0
RDY/BSY# 4
Programming
Memory
Controller
CS# 6
DI 7
CLK 5
MUTE 9
GND 10
Control
Logic
Serial Data Out
DAC SECTION 1
DAC SECTION 2
11 VREFL0
1 VREFH1
17 VOUT1
12 VREFL1
20 VREFH2
16 VOUT2
13 VREFL2
DAC SECTION 3
19 VREFH3
15 VOUT3
14 VREFL3
8 DO
SUMMIT MICROELECTRONICS, Inc. • 300 Orchard City Drive, Suite 131 • Campbell, CA 95008 • Telephone 408-378-6461 • Fax 408-378-6586 • www.summitmicro.com
© SUMMIT MICROELECTRONICS, Inc. 2000
2023 2.2 8/2/00
Characteristics subject to change without notice
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