Electrical characteristics (continued) – Rainbow Electronics MAX126 User Manual
Page 3
µA
MAX125/MAX126
2x4-Channel, Simultaneous-Sampling
14-Bit DAS
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= +5V ±5%, AV
SS
= -5V ±5%, DV
DD
= +5V ±5%, V
REFIN
= 2.5V, AGND = DGND = 0V, 4.7µF capacitor from REFOUT to
AGND, 0.1µF capacitor from REFIN to AGND, f
CLK
= 16MHz, external clock, 50% duty cycle, T
A
= T
MIN
to T
MAX
, unless otherwise
noted.)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
MAX125
V
±5
V
IN
Input Voltage Range
MAX125, V
IN
= ±5V
µA
±667
I
IN
Input Current
(Note 7)
pF
16
C
IN
Input Capacitance
µs
1
t
ACQ
Acquisition Time
MHz
8
Small-Signal Bandwidth
MHz
0.5
Full-Power Bandwidth
mV/ms
2
Droop Rate
ns
5
Aperture Delay
ps
RMS
30
Aperture Jitter
ps
500
Aperture-Delay Matching
T
A
= +25°C
V
2.475
2.500
2.525
V
REFOUT
Output Voltage
0mA < I
LOAD
< 1mA
%
±1
External Load Regulation
(Note 9)
ppm/°C
30
REFOUT Tempco
µF
0.1
External Capacitive
Bypass at REFIN
V
2.50 ±10%
Input Voltage Range
µF
4.7
22
External Capacitive
Bypass at REFOUT
REFIN = 2.5V
µA
±10
Input Current
(Note 10)
k
Ω
10
Input Resistance
(Note 7)
pF
10
Input Capacitance
MHz
0.1
16
External Clock Frequency
V
2.4
V
IH
Input High Voltage
V
0.8
V
IL
Input Low Voltage
CONVST, RD, WR, CS, CLK
±1
(Note 7)
pF
15
C
IN
Input Capacitance
A0–A3
µA
±10
I
IN
Input Current
MAX126
±2.5
MAX126, V
IN
= ±2.5V
ANALOG INPUT
TRACK/HOLD
REFERENCE OUTPUT
(Note 8)
REFERENCE INPUT
EXTERNAL CLOCK
DIGITAL INPUTS
(CONVST, RD, WR, CS, CLK, A0–A3) (Note 1)