MAX1270ACAI Maxim, MAX1270ACAI Datasheet - Page 3

• Manufacturer Part Number: MAX1270ACAI
• Description: Multirange / +5V / 8-Channel / Serial 12-Bit ADCs
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
50% duty cycle (MAX127_B); f
otherwise noted. Typical values are T
ANALOG INPUT
Track/Hold Acquisition Time
Small-Signal Bandwidth
Input Voltage Range
(Table 3)
Input Current
Dynamic Resistance
Input Capacitance
DD
= +5.0V ±5%; unipolar/bipolar range; external reference mode, V
PARAMETER
_______________________________________________________________________________________
CLK
= 1.8MHz, 50% duty cycle (MAX127_A); 18 clock/conversion cycle, T
A
∆V
SYMBOL
= +25°C.)
t
ACQ
IN
V
I
IN
IN
/∆I
IN
MAX127_A, f
MAX127_B, f
-3dB rolloff
Unipolar (BIP =
0), Table 3
Bipolar (BIP =
1), Table 3
Unipolar
Bipolar
Unipolar
Bipolar
(Note 4)
Multirange, +5V, 8-Channel,
CLK
CLK
CONDITIONS
= 1.8MHz
= 2.0MHz
MAX1270
MAX1271
MAX1270
MAX1271
MAX1270
MAX1271
MAX1270
MAX1271
REF
±10V or ±V
range
±5V or ±V
range
0 to 10V or 0 to
V
0 to 5V or 0 to
V
REF
REF
= +4.096V; 4.7µF at REF; external clock; f
/2 range
range
Serial 12-Bit ADCs
RNG = 1
RNG = 0
RNG = 1
RNG = 0
RNG = 1
RNG = 0
RNG = 1
RNG = 0
0 to 10V
range
0 to 5V
range
±10V
range
±5V range
±V
range
±V
range
REF
REF
REF
REF
/2
/2
-V
-1200
-1200
-V
-600
-600
MIN
-10
-10
-10
-10
REF
-5
REF
0
0
0
0
/2
1.25
TYP
A
2.5
2.5
0.1
21
16
5
= T
MIN
+V
V
+V
+720
+360
+720
+360
V
MAX
REF
+10
+10
+10
+10
3.3
3.0
+5
10
40
REF
to T
REF
5
2
REF
CLK
/2
/
MAX
= 2.0MHz,
, unless
UNITS
MHz
µA
kΩ
µs
pF
V
3