MAX1134 Datasheet, PDF (3/18 Pages) Maxim Integrated Products – 16-Bit ADCs, 150ksps, 3.3V Single Supply

16-Bit ADCs, 150ksps, 3.3V Single Supply
ELECTRICAL CHARACTERISTICS (continued)
(AV_DD = DV_DD = 3.3V ±5%, f_SCLK = 3.6MHz, external clock (50% duty cycle), 24 clocks/conversion (150ksps), bipolar input, V_REF =
2.048V, C_REF = 4.7µF, C_CREF = 1µF, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
Input Impedance
MAX1134
MAX1135
Unipolar
Bipolar
Unipolar
Bipolar
Input Capacitance
CONVERSION RATE
Internal Clock Frequency
Aperture Delay
t_AD
Aperture Jitter
t_AJ
MODE 1 (24 EXTERNAL CLOCK CYCLES PER CONVERSION)
External Clock Frequency
f_SCLK
Unipolar
Bipolar
Sample Rate
f_S =
Unipolar
f_SCLK / 24 _Bipolar
Conversion Time (Note 4)
t_{CONV+ACQ Unipolar}
= 24 /
f_SCLK ^Bipolar
MODE 2 (INTERNAL CLOCK MODE)
MIN TYP MAX UNITS
7.5 10.5
5.9
8.4
kΩ
100 1000
3.4
5.3
32
pF
3
MHz
10
ns
50
ps
0.1
3.0
MHz
0.1
3.6
4.17
125
ksps
4.17
150
8
240
µs
6.7
240
External Clock Frequency
(Data Transfer Only)
4
MHz
Conversion Time
(SSTRB low pulse width)
Acquisition Time (Note 5)
Unipolar
Bipolar
MODE 3 (32 EXTERNAL CLOCK CYCLES PER CONVERSION)
External Clock Frequency
f_SCLK Unipolar or bipolar
Sample Rate
f_S =
Unipolar or bipolar
f_SCLK / 32
5.3
7
µs
1.67
µs
1.39
0.1
3.125
3.6
MHz
112
ksps
Conversion Time (Note 4)
t_CONV+ACQ
= 32 / Unipolar or bipolar
f_SCLK
8.89
320
µs
EXTERNAL REFERENCE
Input Range
Input Current
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage
(Notes 6, 7)
V_REF = 2.048V, f_SCLK = 3.6MHz
V_REF = 2.048V, f_SCLK = 0
In power-down, f_SCLK = 0
V_IH
V_IL
I_IN
V_IN = 0 or DV_DD
1.9 2.048 2.2
V
110
100
µA
0.1
2.4
V
0.8
V
-1
+1
µA
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