Rainbow Electronics MAX1303 - Manual (Page 3)

MAX1302/MAX1303
8-/4-Channel, ±V
REF
Multirange Inputs,
Serial 16-Bit ADCs
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ELECTRICAL CHARACTERISTICS (continued)
(AV DD1 = AV DD2 = DV DD = DV DDO = 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, f CLK = 3.5MHz (50% duty cycle),
external clock mode, V REF = 4.096V (external reference operation), REFCAP = AV DD1 , maximum single-ended bipolar input range
(±V REF ), C DOUT = 50pF, C SSTRB = 50pF, T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Differential inputs, FSR = 2 x V REF 90
Single-ended inputs, FSR = V REF 88
Single-ended inputs, FSR = V REF / 2 85
Signal-to-Noise Ratio SNR
Single-ended inputs, FSR = V REF / 4 82
dB
Total Harmonic Distortion
(Up to the 5th Harmonic)
THD -98 dB
Spurious-Free Dynamic Range SFDR 92 99 dB
Aperture Delay t AD Figure 21 15 ns
Aperture Jitter t AJ Figure 21 100 ps
Channel-to-Channel Isolation 105 dB
CONVERSION RATE
External clock mode, Figure 2 114
External acquisition mode, Figure 3 84 Byte-Wide Throughput Rate f SAMPLE
Internal clock mode, Figure 4 106
ksps
ANALOG INPUTS (CH0–CH3 MAX1303, CH0–CH7 MAX1302, AGND1)
Small-Signal Bandwidth All input ranges, V IN = 100mV P-P (Note 2) 1.5 MHz
Full-Power Bandwidth All input ranges, V IN = 4V P-P (Note 2) 700 kHz
R[2:1] = 001 -V REF / 4 +V REF / 4
R[2:1] = 010 -V REF / 2 0
R[2:1] = 011 0 +V REF / 2
R[2:1] = 100 -V REF / 2 +V REF / 2
R[2:1] = 101 -V REF 0
R[2:1] = 110 0 +V REF
Input Voltage Range (Table 6) V CH_
R[2:1] = 111 -V REF +V REF
V
Tr ue- D i ffer enti al Anal og C om m on-
M od e V ol tag e Rang e
V CMDR DIF/SGL = 1 (Note 4) -4.75 +5.50 V
Common-Mode Rejection Ratio CMRR D IF/S G L = 1, i np ut vol tag e r ang e = ± V R E F / 4 75 dB
Input Current I CH_ -V REF < V CH_ < +V REF -1500 +650 µA
Input Capacitance C
CH_
5 pF
Input Resistance R CH_ 6 k Ω