OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MX7824KN+

P1-P3P4-P6P7-P9P10-P12
_______________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
MX7824LN
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
MX7824/MX7828
CMOS, High-Speed, 8-Bit ADCs
with Multiplexer
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +5V, V
REF
+ = +5V, V
REF
- = GND, Mode 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage, VDD to GND........................................0V, +10V
Voltage at Any Other Pins......................GND - 0.3V, V
DD
+ 0.3V
Output Current (REF OUT)..................................................30mA
Power Dissipation (any package) to +75°C ....................450mW
Derate above +25°C by..............................................6mW/°C
Operating Temperature Ranges
MX7824, MX7828
KN/LN/KCW_/LCW_............................................0°C to +70°C
BQ/CQ .............................................................-40°C to +85°C
TQ/UQ............................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
Input Capacitance (Note 4) C
IN
58pF
Input Low Voltage V
INL
0.8 V
Input High Current I
INH
1 µA
Input Low Current I
INL
-1 µA
Analog Input Current I
AIN
±3 µA
Slew Rate, Tracking SR 0.7 0.157 V/µs
Input High Voltage V
INH
2.4 V
Any channel, AIN = 0V to 5V
Output Noise e
N
200 µV/rms
Capacitive Load 0.01 µF
Analog Input Voltage Range A
INR
V
REF
-V
REF
+ V
Analog Input Capacitance C
AIN
45 pF
±1MAX15_B, MX782_K/B/T
PARAMETER SYMBOL MIN TYP MAX UNITS
Channel to Channel Mismatch ±1/4 LSB
No Missing Codes Resolution 8 Bits
Total Unadjusted Error (Note 1)
±1/2
LSB
Reference Resistance 14kΩ
V
REF
+ Input Voltage Range V
REF
-V
DD
V
V
REF
- Input Voltage Range GND V
REF
+ V
Resolution 8 Bits
Output Voltage REF OUT 2.47 2.50 2.53 V
Load Regulation -6 -10 mV
Power-Supply Sensitivity ±1 ±3 mV
40 70
40 70Temperature Drift (Note 3)
60 100
ppm/°C
CONDITIONS
T
A
= +25°C
I
L
= 0mA to 10mA, T
A
= +25°C
MAX15_A, MX782_L/C/U
V
DD
±5%, T
A
= +25°C
MAX15_C
MAX15_E
MAX15_M
ACCURACY
REFERENCE INPUT
REFERENCE OUTPUT—MAX154/MAX158 Only (Note 2)
ANALOG INPUT
LOGIC INPUTS (
–
R
—
D
–
,
–
C
—
S
–
, A0, A1, A2)
ELECTRICAL CHARACTERISTICS
(V
DD
= +5V, V
REF
+ = +5V, V
REF
- = GND, Mode 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
TIMING CHARACTERISTICS (Note 5)
(V
DD
= +5V, V
REF
+ = +5V, V
REF
- = GND, Mode 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Note 1: Total unadjusted error includes offset, full-scale, and linearity errors.
Note 2: Specified with no external load unless otherwise noted.
Note 3: Temperature drift is defined as change in output voltage from +25°C to T
MIN
or T
MAX
divided by (25 - T
MIN
) or (T
MAX
- 25).
Note 4: Guaranteed by design.
Note 5: All input control signals are specified with t
R
= t
F
= 20ns (10% to 90% of +5V) and timed from a 1.6V voltage level.
Note 6: Measured with load circuits of Figure 1 and defined as the time required for an output to cross 0.8V or 2.4V.
Note 7: Defined as the time required for the data lines to change 0.5V when loaded with the circuits of Figure 2.
MX7824/MX7828
CMOS, High-Speed, 8-Bit ADCs
with Multiplexer
_______________________________________________________________________________________ 3
(Note 6)
(Note 6)
C
L
= 50pF, R
L
= 5kΩ
(Note 7)
C
L
= 50pF
CONDITIONS
ns
60
t
DH
Data Hold Time
ns
40 75
t
INTH
–
R
—
D
–
to
–
I
—
N
—
T
–
Delay (Mode 1)
ns
0
t
CSH
ns
0
t
CSS
–
C
—
S
–
to
–
R
—
D
–
Setup Time
–
C
—
S
–
to
–
R
—
D
–
Hold Time
ns
20 50
t
ACC2
Data Access Time
After
–
I
—
N
—
T
–
, Mode 0
ns
85
t
ACC1
Data Access Time After
–
R
—
D
–
µs
1.6 2.0
t
CRD
Conversion Time (Mode 0)
ns
30 40
t
RDY
–
C
—
S
–
to RDY Delay
ns
0
t
AS
Multiplexer Address
Setup Time
ns
30
t
AH
Multiplexer Address
Hold Time
UNITS
T
A
= +25°C
SYMBOLPARAMETER
ns
500
t
P
Delay Time
Between Conversions
500
70
100
0
0
60
110
2.4
60
0
35
MAX15_ _C/E
MX782_K/L/B/C
600
70
100
0
0
70
120
2.8
60
0
40
MAX15_ _M
MX782_T/U
MIN MAX MIN MAXMIN TYP MAX
ns
60 600
t
RD
–
R
—
D
–
Pulse Width (Mode 1)
80 500 80 400
DB0–DB7,
–
I
—
N
—
T
–
; I
OUT
= -360µA
–
C
—
S
–
=
–
R
—
D
–
= 2.4V
5V ±5% for specified performance
DB0–DB7, RDY; V
OUT
= 0V to V
DD
V
DD
= ±5%
CONDITIONS
LSB±1/16 ±1/4PSSPower-Supply Sensitivity
V4.0V
OH
Output High Voltage
mW25 75Power Dissipation
mA15I
DD
Supply Current
V4.75 5.25V
DD
Supply Voltage
µA±3Three-State Output Current
pF58C
OUT
Output Capacitance (Note 4)
UNITSMIN TYP MAXSYMBOLPARAMETER
DB0–DB7,
–
I
—
N
—
T
–
; RDY
0.4
V
0.4
V
OL
Output Low Voltage
I
OUT
= 1.6mA
I
OUT
= 2.6mA
LOGIC OUTPUTS
POWER SUPPLY
P1-P3P4-P6P7-P9P10-P12

MX7824KN+

Mfr. #:
Buy MX7824KN+
Manufacturer:
Maxim Integrated
Description:
Analog to Digital Converters - ADC 8-Bit 4Ch Precision ADC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet