19-0876; Rev 1; 5/96
CMOS , µP -Co m p a t ib le , 5 µs /1 0 µs , 8 -Bit ADCs
/MX576
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
Maxim’s MX7575/MX7576 are high-speed (5µs/10µs),
microprocessor (µP) compatible, 8-bit analog-to-digital
converters (ADCs). The MX7575 provides an on-chip
track/hold function that allows full-scale signals up to
50kHz (386mV/µs slew rate) to be acquired and digi-
tized accurately. Both ADCs use a successive-approxi-
mation technique to achieve their fast conversions and
low power dissipation. The MX7575/MX7576 operate
with a +5V supply and a 1.23V external reference. They
♦ Fast Conversion Time: 5µs (MX7575)
10µs (MX7576)
♦ Built-In Track/Hold Function (MX7575)
♦ Low Total Unadjusted Error (±1LSB max)
♦ 50kHz Full-Power Signal Bandwidth (MX7575)
♦ Single +5V Supply Operation
♦ 8-Bit µP Interface
accept input voltages ranging from 0V to 2V
.
REF
♦ 100ns Data-Access Time
The MX7575/MX7576 are easily interfaced to all popu-
lar 8-bit µPs through standard CS and RD control sig-
nals. These signals control conversion start and data
access. A BUSY signal indicates the beginning and
end of a conversion. Since all the data outputs are
latched and three-state buffered, the MX7575/MX7576
can be directly tied to a µP data bus or system l/O port.
♦ Low Power: 15mW
♦ Small-Footprint Packages
______________Ord e rin g In fo rm a t io n
INL
(LSB)
PART
TEMP. RANGE
PIN-PACKAGE
Maxim also makes the MAX165, a plug-in replacement
for the MX7575 with an internal 1.23V reference. For
applications that require a differential analog input and
an internal reference, the MAX166 is recommended.
MX7575JN
MX7575KN
MX7575JCWN
MX7575KCWN
MX7575JP
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-25°C to +85°C
-25°C to +85°C
18 Plastic DIP
18 Plastic DIP
18 Wide SO
18 Wide SO
20 PLCC
±1
±1/2
±1
±1/2
±1
________________________Ap p lic a t io n s
Digital Signal Processing
High-Speed Data Acquisition
Telecommunications
MX7575KP
MX7575J/D
MX7575AQ
MX7575BQ
20 PLCC
±1/2
±1
Dice*
18 CERDIP**
18 CERDIP**
±1
±1/2
Audio Systems
Ordering Information continued at end of data sheet.
Contact factory for dice specifications.
** Contact factory for availability.
High-Speed Servo Loops
Low-Power Data Loggers
*
_________________P in Co n fig u ra t io n s
_______________Fu n c t io n a l Dia g ra m s
V
DD
TOP VIEW
18
1
2
3
4
5
6
7
8
9
CS
RD
V
DD
18
MX7575
16
TRACK/
HOLD
17 REF
16 AIN
AIN
COMP
MX7575
MX7576
TP (MODE)
BUSY
CLK
15
17
AGND
REF
15
14
13
12
11
10
AGND
D0 (LSB)
D1
DAC
SAR
CLOCK
OSCILLATOR
5
CLK
D7 (MSB)
D6
D2
6
1
2
3
CS
RD
TP
D7
.
LATCH AND
THREE-STATE
OUTPUT DRIVERS
D5
D3
CONTROL
LOGIC
.
D0
DGND
D4
14
4
9
DIP/SO
( ) ARE FOR MX7576 ONLY.
BUSY
DGND
Pin Configurations continued at end of data sheet.
Functional Diagrams continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800