Datasheet

_______________________________________________________________________________________ 7
MAX11661–MAX11666
500ksps, Low-Power,
Serial 12-/10-/8-Bit ADCs
ELECTRICAL CHARACTERISTICS (MAX11664) (continued)
(V
DD
= 2.2V to 3.6V, V
REF
= V
DD
, V
OVDD
= V
DD
, f
SCLK
= 8MHz, 50% duty cycle, 500ksps; C
DOUT
= 10pF, T
A
= -40NC to +125NC,
unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Intermodulation Distortion IMD f
1
= 239.8kHz, f
2
= 200.2kHz -82 dB
Full-Power Bandwidth -3dB point 40 MHz
Full-Linear Bandwidth SINAD > 60dB 2.5 MHz
Small-Signal Bandwidth 45 MHz
Crosstalk -90 dB
CONVERSION RATE
Throughput 5 500 ksps
Conversion Time 1.56
Fs
Acquisition Time t
ACQ
52 ns
Aperture Delay
From CS falling edge
4 ns
Aperture Jitter 15 ps
Serial-Clock Frequency f
CLK
0.08 8 MHz
ANALOG INPUT (AIN1, AIN2)
Input Voltage Range V
AIN_
0 V
REF
V
Input Leakage Current I
ILA
0.002
Q1 FA
Input Capacitance C
AIN
-
_
Track 20
pF
Hold 4
EXTERNAL REFERENCE INPUT (REF)
Reference Input Voltage Range V
REF
1
V
DD
+
0.05
V
Reference Input Leakage
Current
I
ILR
Conversion stopped 0.005
Q1 FA
Reference Input Capacitance C
REF
5 pF
DIGITAL INPUTS (SCLK, CS, CHSEL)
Digital Input High Voltage V
IH
0.75 x
V
OVDD
V
Digital Input Low Voltage V
IL
0.25 x
V
OVDD
V
Digital Input Hysteresis V
HYST
0.15 x
V
OVDD
V
Digital Input Leakage Current I
IL
Inputs at GND or V
DD
0.001
Q1 FA
Digital Input Capacitance C
IN
2 pF
DIGITAL OUTPUT (DOUT)
Output High Voltage V
OH
I
SOURCE
= 200µA
0.85 x
V
OVDD
V
Output Low Voltage V
OL
I
SINK
= 200µA
0.15 x
V
OVDD
V
High-Impedance Leakage
Current
I
OL
Q1.0 FA
High-Impedance Output
Capacitance
C
OUT
4 pF