Electrical characteristics (continued) – Rainbow Electronics MAX159 User Manual
Page 3
MHz
+2.7V, Low-Power, 2-Channel,
108ksps, Serial 10-Bit ADCs in 8-Pin µMAX
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +5.25V, V
REF
= 2.5V, 0.1µF capacitor at REF, f
SCLK
= 2.17MHz, 16 clocks/conversion cycle (108ksps),
CH- = GND for MAX159, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
CONVERSION RATE
0.5
I
SINK
= 16mA
Three-State Output Capacitance
15
pF
C
OUT
CS/SHDN = V
DD
(Note 8)
Output High Voltage
V
DD
- 0.5
V
V
OH
Output Low Voltage
0.4
V
V
OL
I
SINK
= 5mA
I
SOURCE
= 0.5mA
Input Capacitance
15
pF
C
IN
Input Leakage Current
±1
µA
I
IN
V
IN
= 0 or V
DD
(Note 8)
Input Hysteresis
0.2
V
V
HYS
V
V
3.0
V
DD
> 3.6V
Input Low Voltage
0.8
V
IL
Input High Voltage
2.0
V
IH
V
DD
≤
3.6V
Shutdown REF Input Current
0.01
10
µA
Input Resistance
18
25
k
Ω
Input Current
100
140
µA
V
REF
= 2.5V
Input Voltage Range (Note 7)
0 V
DD
+ 50mV
V
V
REF
Analog Input Voltage Range
(Note 6)
0
V
REF
V
V
IN
Input Capacitance
16
µA
C
IN
Multiplexer Leakage Current
±0.01 ±1
µA
On/off-leakage current, V
IN
= 0 to V
DD
Aperture Delay
25
ns
Aperture Jitter
<50
ps
Serial Clock Frequency
0.1
2.17
f
SCLK
0
5
MHz
External clock mode
Internal clock mode, for data transfer only
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
7.4
µs
Conversion Time (Note 5)
t
CONV
5 7
T/H Acquisition Time
t
ACQ
2.5
µs
CONDITIONS
External clock, f
SCLK
= 2.17MHz, 16 clock
cycles per conversion
Internal clock
Three-State Output Leakage
Current
±10
µA
CS/SHDN = V
DD
CONVERSION RATE
ANALOG INPUTS
EXTERNAL REFERENCE
DIGITAL INPUTS (
CS
/SHDN, SCLK) AND DIGITAL OUTPUT (DOUT)
MAX157/MAX159