MAX1270ACAI Maxim, MAX1270ACAI Datasheet - Page 5

• 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
Conversion Time
Throughput Rate
Bandgap Reference Startup Time
Reference Buffer Settling Time
DIGITAL INPUTS (DIN, SCLK, CS, and SHDN)
Input High Threshold Voltage
Input Low Threshold Voltage
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUTS (DOUT, SSTRB)
Output Voltage Low
Output Voltage High
Tri-State Leakage Current
Tri-State Output 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
SYMBOL
t
= +25°C.)
C
V
CONV
V
V
C
V
V
I
HYS
OUT
OH
I
IN
OL
IH
IL
IN
L
External clock mode
(Note 8)
Internal clock mode, Figure 9
External clock mode
Internal clock mode
Power-up (Note 9)
To 0.1mV, REF bypass
capacitor fully
discharged
V
(Note 4)
I
I
I
CS = V
CS = V
SINK
SINK
SOURCE
IN
= 0 to V
= 5mA
= 16mA
DD
DD
Multirange, +5V, 8-Channel,
= 0.5mA
(Note 4)
DD
CONDITIONS
REF
MAX127_A
MAX127_B
MAX127_A
MAX127_B
C
C
= +4.096V; 4.7µF at REF; external clock; f
REF
REF
= 33µF
= 4.7µF
Serial 12-Bit ADCs
V
MIN
6.6
6.0
0.8
-10
0.5
-10
DD -
6
200
TYP
7.7
0.2
0.4
A
60
8
= T
MIN
MAX
+10
+10
100
110
2.4
0.4
11
43
15
15
to T
CLK
MAX
= 2.0MHz,
UNITS
, unless
ksps
ms
µA
pF
µA
pF
µs
µs
V
V
V
V
V
5