Electrical characteristics (continued) – Rainbow Electronics MAX1093 User Manual
Page 3
MAX1091/MAX1093
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= V
LOGIC
= +2.7V to +3.6V, COM = GND, REFADJ = V
DD
, V
REF
= +2.5V, 4.7µF capacitor at REF pin, f
CLK
= 4.8MHz (50% duty
cycle), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
0 to 0.5mA output load
To power down the internal reference
For small adjustments
T
A
= 0°C to +70°C
On/off-leakage current, V
IN
= 0 or V
DD
Unipolar, V
COM
= 0
V
1.0
V
DD
+
50mV
V
REF
REF Input Voltage Range
µF
4.7
10
Capacitive Bypass at REF
µF
0.01
1
Capacitive Bypass at REFADJ
mV/mA
0.2
0.5
Load Regulation (Note 7)
V
V
DD
- 1.0
REFADJ High Threshold
mV
±100
REFADJ Input Range
±20
ppm/°C
TC
REF
REF Temperature Coefficient
mA
15
REF Short-Circuit Current
V
2.49
2.5
2.51
REF Output Voltage
pF
12
C
IN
Input Capacitance
µA
±0.01
±1
Multiplexer Leakage Current
V
Analog Input Voltage Range
Single-Ended and Differential
(Note 6)
0
V
REF
V
IN
CS = V
DD
I
SOURCE
= 1mA
I
SINK
= 1.6mA
V
IN
= 0 or V
DD
V
LOGIC
= 2.7V
µA
±0.1
±1
I
LEAKAGE
Three-State Leakage Current
V
V
LOGIC
- 0.5
V
OH
Output High Voltage
V
0.4
V
OL
Output Low Voltage
pF
15
C
IN
Input Capacitance
µA
±0.1
±1
I
IN
Input Leakage Current
mV
200
V
HYS
Input Hysteresis
2.0
CS = V
DD
pF
15
C
OUT
Three-State Output Capacitance
Bipolar, V
COM
= V
REF
/2
-V
REF
/2
+V
REF
/2
V
REF
= 2.5V, f
SAMPLE
= 250ksps
µA
200
300
I
REF
REF Input Current
Shutdown mode
2
V
LOGIC
= 1.8V
V
1.5
V
IH
Input High Voltage
V
LOGIC
= 1.8V
V
0.5
V
IL
Input Low Voltage
V
LOGIC
= 2.7V
0.8
ANALOG INPUTS
INTERNAL REFERENCE
EXTERNAL REFERENCE AT REF
DIGITAL INPUTS AND OUTPUTS