MAX1258 Maxim Integrated Products, MAX1258 Datasheet - Page 3

• Manufacturer Part Number: MAX1258
• Description: Multichannel ADCs/DACs
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(AV
DV
(50% duty cycle), T
AV
Acquisition Time
Conversion Time
Internal Clock Frequency
External Clock Frequency
Duty Cycle
Aperture Delay
Aperture Jitter
ANALOG INPUTS
Input Voltage Range (Note 6)
Input Leakage Current
Input Capacitance
INTERNAL TEMPERATURE SENSOR
Measurement Error (Notes 5, 7)
Temperature Resolution
INTERNAL REFERENCE
REF1 Output Voltage (Note 8)
REF1 Voltage Temperature
Coefficient
REF1 Output Impedance
REF1 Short-Circuit Current
EXTERNAL REFERENCE
REF1 Input Voltage Range
REF2 Input Voltage Range
(Note 4)
DD
DD
DD
= DV
= 4.75V to 5.25V (MAX1220/MAX1222/MAX1258), external reference V
= DV
PARAMETER
DD
DD
12-Bit, Multichannel ADCs/DACs with FIFO,
= 5V (MAX1220/MAX1222/MAX1258), T
= 2.7V to 3.6V (MAX1221/MAX1223/MAX1257), external reference V
A
= -40°C to +85°C, unless otherwise noted. Typical values are at AV
_______________________________________________________________________________________
Temperature Sensing, and GPIO Ports
SYMBOL
TC
t
V
V
CONV
t
f
ACQ
CLK
REF1
REF2
REF
(Note 5)
Internally clocked
Externally clocked
Internally clocked conversion
Externally clocked conversion (Note 5)
Unipolar
Bipolar
T
T
MAX1221/MAX1223/MAX1257
MAX1220/MAX1222/MAX1258
V
V
REF mode 11 (Note 4)
REF mode 01
REF mode 11
A
A
REF
REF
= +25°C
= T
A
= 2.5V
= 4.096V
= +25°C. Outputs are unloaded, unless otherwise noted.)
MIN
to T
CONDITIONS
MAX
REF
= 4.096V (MAX1220/MAX1222/MAX1258), f
REF
DD
= 2.5V (MAX1221/MAX1223/MAX1257), AV
= DV
-V
2.482
4.066
MIN
DD
0.6
2.7
0.1
REF
40
0
1
1
0
= 3V (MAX1221/MAX1223/MAX1257),
/2
±0.01
4.096
TYP
±0.7
±1.0
2.50
0.39
0.63
<50
±30
3.5
4.3
1/8
6.5
30
24
AV
AV
V
2.518
4.126
MAX
V
±3.0
0.05
0.05
REF
4.8
±1
60
REF
DD
DD
1
/2
+
+
SCLK
ppm/°C
= 4.8MHz
°C/LSB
UNITS
MHz
MHz
mA
kΩ
ps
µA
pF
°C
µs
µs
ns
%
V
V
V
V
DD
3
=