MAX125_08 Datasheet, PDF (3/15 Pages) Maxim Integrated Products – 2x4-Channel, Simultaneous-Sampling 14-Bit DAS

2x4-Channel, Simultaneous-Sampling
14-Bit DAS
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.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
ANALOG INPUT
Input Voltage Range
MAX125
V_IN
MAX126
±5
V
±2.5
Input Current
I_IN
MAX125, V_IN = ±5V
MAX126, V_IN = ±2.5V
±667 µA
µA
Input Capacitance
C_IN
(Note 7)
16
pF
TRACK/HOLD
Acquisition Time
t_ACQ
1
µs
Small-Signal Bandwidth
8
MHz
Full-Power Bandwidth
0.5
MHz
Droop Rate
2
mV/ms
Aperture Delay
5
ns
Aperture Jitter
30
psRMS
Aperture-Delay Matching
500
ps
REFERENCE OUTPUT (Note 8)
Output Voltage
V_REFOUT T_A = +25°C
2.475 2.500 2.525
V
External Load Regulation
0mA < I_LOAD < 1mA
±1
%
REFOUT Tempco
(Note 9)
30
ppm/°C
External Capacitive
Bypass at REFIN
0.1
µF
External Capacitive
Bypass at REFOUT
4.7
22
µF
REFERENCE INPUT
Input Voltage Range
Input Current
REFIN = 2.5V
Input Resistance
(Note 10)
Input Capacitance
(Note 7)
EXTERNAL CLOCK
External Clock Frequency
DIGITAL INPUTS (CONVST, RD, WR, CS, CLK, A0–A3) (Note 1)
Input High Voltage
V_IH
Input Low Voltage
Input Current
V_IL
CONVST, RD, WR, CS, CLK
I_IN
A0–A3
Input Capacitance
C_IN
(Note 7)
2.50 ±10%
V
±10
µA
10
kΩ
10
pF
0.1
16
MHz
2.4
V
0.8
V
±1
µA
±10
15
pF
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