MX7824 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – CMOS, High-Speed, 8-Bit ADCs with Multiplexer

19-0255; Rev 2; 4/94
CMOS, High-Speed, 8-Bit ADCs
with Multiplexer
_______________General Description ____________________________Features
The MAX154/MAX158 and MX7824/MX7828 are high-
speed, multi-channel analog-to-digital converters
(ADCs). The MAX154 and MX7824 have four analog
o One-Chip Data Acquisition System
o Four or Eight Analog Input Channels
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-
o 2.5µs per Channel Conversion Time
o Internal 2.5V Reference (MAX154/MAX158 only)
ence, forming a complete high-speed data acquisition
system.
All four converters include a built-in track/hold, eliminat-
o Built-In Track/Hold Function
o ^1/2LSB Error Specification
ing the need for an external track/hold with many input o Single +5V Supply Operation
signals. The analog input range is 0V to +5V, although
the ADC operates from a single +5V supply.
o No External Clock
Microprocessor interfaces are simplified by the ADC’s ^{o New Space-Saving SSOP Package}
ability to appear as a memory location or I/O port without
the need for external logic. The data outputs use latched,
______________Ordering Information
three-state buffer circuitry to allow direct connection to a
microprocessor data bus or system input port.
PART
TEMP. RANGE
PIN-PACKAGE
ERROR
(LSB)
The MX7824 and MX7828 are pin compatible with
Analog Devices’ AD7824 and AD7828. The MAX154
MX7824LN
0°C to +70°C
24 Narrow
Plastic DIP
±^1/2
and MAX158, which feature internal references, are also
compatible with these products.
MX7824KN
0°C to +70°C
24 Narrow
Plastic DIP
±1
________________________Applications
MX7824LCWG 0°C to +70°C 24 Wide SO
±1/2
Digital Signal Processing
MX7824KCWG 0°C to +70°C 24 Wide SO
±1
High-Speed Data Acquisition
Telecommunications
MX7824LCAG 0°C to +70°C 24 SSOP
±^1/2
MX7824KCAG 0°C to +70°C 24 SSOP
±1
High-Speed Servo Control
Audio Instrumentation
Ordering Information continued on last page.
__________________________________________________________Pin Configurations
TOP VIEW
AIN4 ₁
AIN3 2
AIN2 ₃
AIN1 ₄
TP (REF OUT) ₅
DB0 6
DB1 ₇
DB2 ₈
DB3 ₉
RD ₁₀
INT ₁₁
GND ₁₂
MAX154
MX7824
24 ^VDD
23 NC
22 A0
21 A1
20 DB7
19 DB6
18 DB5
17 DB4
16 CS
15 RDY
14 VREF+
13 VREF-
DIP/SO/SSOP
( ) ARE FOR MAX154/MAX158 ONLY.
AIN6 ₁
AIN5 2
AIN4 ₃
AIN3 ₄
AIN2 ₅
AIN1 6
TP (REF OUT) ₇
DB0 ₈
DB1 ₉
DB2 ₁₀
DB3 ₁₁
RD ₁₂
INT ₁₃
GND ₁₄
MAX158
MX7828
28 ^AIN7
27 AIN8
26 VDD
25 A0
24 A1
23 A2
22 DB7
21 DB6
20 DB5
19 DB4
18 CS
17 RDY
16 VREF+
15 VREF-
DIP/SO/SSOP
________________________________________________________________ Maxim Integrated Products 1
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