Rainbow Electronics MX7828 - Manual

_______________General Description
The MAX154/MAX158 and MX7824/MX7828 are high-
speed, multi-channel analog-to-digital converters
(ADCs). The MAX154 and MX7824 have four analog
input channels, while the MAX158 and MX7828 have
eight channels. Conversion time for all devices is 2.5µs.
The MAX154/MAX158 also feature a 2.5V on-chip refer-
ence, forming a complete high-speed data acquisition
system.
All four converters include a built-in track/hold, eliminat-
ing the need for an external track/hold with many input
signals. The analog input range is 0V to +5V, although
the ADC operates from a single +5V supply.
Microprocessor interfaces are simplified by the ADC’s
ability to appear as a memory location or I/O port without
the need for external logic. The data outputs use latched,
three-state buffer circuitry to allow direct connection to a
microprocessor data bus or system input port.
The MX7824 and MX7828 are pin compatible with
Analog Devices’ AD7824 and AD7828. The MAX154
and MAX158, which feature internal references, are also
compatible with these products.
________________________Applications
Digital Signal Processing
High-Speed Data Acquisition
Telecommunications
High-Speed Servo Control
Audio Instrumentation
____________________________Features
♦ One-Chip Data Acquisition System
♦ Four or Eight Analog Input Channels
♦ 2.5µs per Channel Conversion Time
♦ Internal 2.5V Reference (MAX154/MAX158 only)
♦ Built-In Track/Hold Function
♦ 1/2 LSB Error Specification
♦ Single +5V Supply Operation
♦ No External Clock
♦ New Space-Saving SSOP Package
______________Ordering Information
MX7824/MX7828
CMOS, High-Speed, 8-Bit ADCs
with Multiplexer
________________________________________________________________ Maxim Integrated Products 1
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
V DD
NC
A0
A1 AIN1
AIN2
AIN3
AIN4
TOP VIEW
DB7
( ) ARE FOR MAX154/MAX158 ONLY.
DB6
DB5
DB4 DB2
DB1
DB0
TP (REF OUT)
16
15
14
13
9
10
11
12
CS
RDY
V REF +
V REF - GND
INT
RD
DB3
DIP/SO/SSOP
MAX154
MX7824
28
27
26
25
24
23
22
21
1
2
3
4
5
6
7
8
AIN7
AIN8
V DD
A0 AIN3
AIN4
AIN5
AIN6
A1
A2
DB7
DB6 DB0
TP (REF OUT)
AIN1
AIN2
20
19
18
17
9
10
11
12
DB5
DB4
CS
RDY RD
DB3
DB2
DB1
DIP/SO/SSOP
MAX158
MX7828
16
15
13
14
V REF +
V REF - GND
INT
__________________________________________________________Pin Configurations
Call toll free 1-800-998-8800 for free samples or literature.
19-0255; Rev 2; 4/94
PART
MX7824 LN
MX7824KN
MX7824LCWG 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
24 Narrow
Plastic DIP
24 Narrow
Plastic DIP
24 Wide SO
MX7824KCWG
MX7824LCAG
MX7824KCAG 0°C to +70°C
0°C to +70°C
0°C to +70°C 24 Wide SO
24 SSOP
24 SSOP
Ordering Information continued on last page.
ERROR
(LSB)
± 1/2
±1
± 1/2
±1
± 1/2
±1