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MAX158BCAI+T

P1-P3P4-P6P7-P9P10-P12
_______________General Description
The MAX154/MAX158 are high-speed multi-channel
analog-to-digital converters (ADCs). The MAX154 has
four analog input channels while the MAX158 has eight
channels. Conversion time for both devices is 2.5µs.
The MAX154/MAX158 also feature a 2.5V on-chip refer-
ence, forming a complete high-speed data acquisition
system.
Both converters include a built-in track/hold, eliminating
the need for an external track/hold. 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.
________________________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
♦ Built-In Track/Hold Function
♦
1
/
2
LSB Error Specification
♦ Single +5V Supply Operation
♦ No External Clock
♦ New Space-Saving SSOP Package
______________Ordering Information
MAX154/MAX158
CMOS High-Speed 8-Bit ADCs with
Multiplexer and Reference
________________________________________________________________
Maxim Integrated Products
1
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
V
DD
N.C.
A0
A1
AIN1
AIN2
AIN3
AIN4
TOP VIEW
DB7
DB6
DB5
DB4
DB2
DB1
DB0
REF OUT
16
15
14
13
9
10
11
12
CS
RDY
V
REF
+
V
REF
-
GND
INT
RD
DB3
DIP/SO/SSOP
MAX154
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
REF OUT
AIN1
AIN2
20
19
18
17
9
10
11
12
DB5
DB4
CS
RDY
RD
DB3
DB2
DB1
DIP/SO/SSOP
MAX158
16
15
13
14
V
REF
+
V
REF
-
GND
INT
__________________________________________________________Pin Configurations
19-0892; Rev 3; 12/96
PART
MAX154ACNG
MAX154BCNG
MAX154BC/D 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
Dice
MAX154ACWG
MAX154BCWG
MAX154ACAG 0°C to +70°C
0°C to +70°C
0°C to +70°C 24 Wide SO
24 Wide SO
24 SSOP
Ordering Information continued at end of data sheet.
ERROR
(LSB)
±
1
/
2
±1
±
1
/
2
±
1
/
2
±1
±
1
/
2
MAX154BCAG 0°C to +70°C 24 SSOP ±1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAX154/MAX158
CMOS High-Speed 8-Bit ADCs with
Multiplexer and Reference
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, V
DD
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
MAX15_ _C_ _.....................................................0°C to +70°C
MAX15_ _E_ _..................................................-40°C to +85°C
MAX15_ _M_ _...............................................-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
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
MAX15_A
ACCURACY
REFERENCE INPUT
REFERENCE OUTPUT (Note 2)
ANALOG INPUT
LOGIC INPUTS (
–
R
—
D
–
,
–
C
—
S
–
, A0, A1, A2)
I
L
= 0mA to 10mA, T
A
= +25°C
V
DD
±5%, T
A
= +25°C
MAX15_ _C
MAX15_ _E
MAX15_ _M
ELECTRICAL CHARACTERISTICS (continued)
(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 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.
MAX154/MAX158
CMOS High-Speed 8-Bit ADCs with
Multiplexer and Reference
_______________________________________________________________________________________ 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
RD to INT Delay (Mode 1)
ns
0
t
CSH
ns
0
t
CSS
CS to RD Setup Time
CS to RD Hold Time
ns
20 50
t
ACC2
Data Access Time
After INT, Mode 0
ns
85
t
ACC1
Data Access Time After RD
µs
1.6 2.0
t
CRD
Conversion Time (Mode 0)
ns
30 40
t
RDY
CS to RDY Delay
ns
0
t
AS
Multiplexer Address
Setup Time
ns
30
t
AH
Multiplexer Address
Hold Time
UNITS
MIN TYP MAX
SYMBOL
ns
500
t
P
Delay Time
Between Conversions
500
70
100
0
0
60
110
2.4
60
0
35
MAX15_C/E
600
70
100
0
0
70
120
2.8
60
0
40
MAX15_M
MIN MAX MIN MAX
ns
60 600
t
RD
RD Pulse Width (Mode 1)
80 500 80 400
DB0-DB7, INT; I
OUT
= -360µA
CS = RD = 2.4V
5V ±5% for specified performance
DB0-DB7, INT; RDY
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
0.4
V
0.4
V
OL
Output Low Voltage
µA±3Three-State Output Current
pF58C
OUT
Output Capacitance (Note 4)
UNITSMIN TYP MAXSYMBOLPARAMETER
I
OUT
= 1.6mA
I
OUT
= 2.6mA
LOGIC OUTPUTS
POWER-SUPPLY
PARAMETER
T
A
= +25°C
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.
P1-P3P4-P6P7-P9P10-P12

MAX158BCAI+T

Mfr. #:
Buy MAX158BCAI+T
Manufacturer:
Maxim Integrated
Description:
Analog to Digital Converters - ADC 8-Bit 4Ch 400ksps 5V Precision ADC
Lifecycle:
New from this manufacturer.
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