Datasheet

MAX110/MAX111
Low-Cost, 2-Channel, ±14-Bit Serial ADCs
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ELECTRICAL CHARACTERISTICS—MAX110 (continued)
(V
DD
= 5V ±5%, V
SS
= -5V ±5%, f
XCLK
= 1MHz, ÷ 2 mode (DV2 = 1), 81,920 CLK cycles/conv, V
REF+
= 1.5V, V
REF-
= -1.5V,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
V
V4.75 5.25V
DD
Positive Supply Voltage
0.8V
IL
V-4.75 -5.25V
SS
Negative Supply Voltage
µA
Input Low Voltage
550 950
780
I
DD
Positive Supply Current
V
DD
= 5.25V,
V
SS
= -5.25V
320 650
Performance guaranteed by supply rejection test
Performance guaranteed by supply rejection test
pF10
0.4
V
DD
- 0.5
V
OH
Output High Voltage
Input Capacitance
f
XCLK
= 500kHz,
continuous-conversion mode
µA
µAI
SS
Negative Supply Current
V
DD
= 5.25V,
V
SS
= -5.25V
±1
20.48
410I
DD
I
LKG
Input Leakage Current
XCLK unloaded,
continuous-conversion mode, RC
oscillator operational (Note 9)
f
XCLK
= 500kHz,
continuous-conversion mode
(Note 3)
µA±10I
LKG
Leakage Current
pF10Output Capacitance
µA
0.05 2
Digital inputs at 0V or 5V
Power-Down Current
DOUT, BUSY, V
DD
= 4.75V, I
SOURCE
= 1.0mA
V
DD
= 5.25V, V
SS
= -5.25V, V
XCLK
= 0V, PD = 1
V
OUT
= 5V or 0V
(Note 3)
10,240 clock-cycles/conversion
DOUT, BUSY, I
SINK
= 1.6mA
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
ms
204.80
t
CONV
Synchronous Conversion
Time (Note 7)
102,400 clock-cycles/conversion
MHz0.25 1.25f
OSC
Oversampling Clock
Frequency
(Note 8)
V2.4V
IH
Input High Voltage
I
SS
V0 3.0V
REF
Differential Reference
Input Voltage Range
pF10
Reference Input
Capacitance
(Note 3)
V
0.4
V
OL
Output Low Voltage
XCLK, I
SINK
= 200µA
V
V
DD
- 0.5
XCLK, V
DD
= 4.75V, I
SOURCE
= 200µA
nA500
I
REF+
,
I
REF-
Reference Input Current V
REF+
= 2.5V, V
REF-
= 0V
V
V
SS
+V
DD
-
2.25 2.25
V
REF+
,
V
REF-
Absolute Reference Input
Voltage Range
CONVERSION TIME
DIGITAL OUTPUTS (DOUT, BUSY, and XCLK when RCSEL = V
DD
)
POWER REQUIREMENTS (all digital inputs at 0V or 5V)
REFERENCE INPUTS
DIGITAL INPUTS (CS, SCLK, DIN, and XCLK when RCSEL = 0V)