Datasheet

MAX1196
Dual 8-Bit, 40Msps, 3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
10 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= OV
DD
= 3V, V
REFIN
= 2.048V, differential input at -1dB FS, f
CLK
= 40MHz, C
L
10pF, T
A
= +25°C, unless otherwise noted.)
Pin Description
PIN
NAME
FUNCTION
1 COM Common-Mode Voltage Input/Output. Bypass to GND with a 0.1µF capacitor.
2, 6, 11, 14, 15
V
DD
Analog Supply Voltage. Bypass to GND with a capacitor combination of 2.2µF in parallel with 0.1µF.
3, 7, 10, 13, 16
GND Analog Ground
4 INA+ Channel A Positive Analog Input. For single-ended operation, connect signal source to INA+.
5 INA- Channel A Negative Analog Input. For single-ended operation, connect INA- to COM.
8 INB- Channel B Negative Analog Input. For single-ended operation, connect INB- to COM.
9 INB+ Channel B Positive Analog Input. For single-ended operation, connect signal source to INB+.
12 CLK Converter Clock Input
INTERNAL REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
MAX1196-28
V
DD
(V)
V
REFOUT
(V)
3.453.303.153.002.85
2.0304
2.0308
2.0312
2.0316
2.0320
2.0324
2.0300
2.70 3.60
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1196-29
TEMPERATURE (°C)
V
REFOUT
(V)
603510-15
2.024
2.028
2.032
2.036
2.040
2.020
-40 85
SNR/SINAD, THD/SFDR
vs. SAMPLING SPEED
MAX1196-30
SAMPLING SPEED (Msps)
SNR/SINAD, THD/SFDR (dB, dBc)
5040302010
-80
-60
-40
-20
0
20
40
60
80
100
-100
060
THD
SINAD
SNR
SFDR
f
IN
= 20MHz
ANALOG SUPPLY CURRENT
vs. TEMPERATURE
MAX1196-26
TEMPERATURE (°C)
I
VDD
(mA)
6035-15 10
26
27
28
29
30
31
32
33
25
-40 85
DIGITAL SUPPLY CURRENT
vs. ANALOG INPUT FREQUENCY
MAX1196-27
ANALOG INPUT FREQUENCY (MHz)
I
OVDD
(mA)
161284
4
5
6
7
8
3
020