MAX1065_09 Datasheet, PDF (6/14 Pages) Maxim Integrated Products – Low-Power, 14-Bit Analog-to-Digital Converters with Parallel Interface

Low-Power, 14-Bit Analog-to-Digital Converters
with Parallel Interface
Typical Operating Characteristics (continued)
(AV_DD = DV_DD = 5V, external reference = 4.096V, C_REF = 1µF, C_REFADJ = 0.1µF, T_A = +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION
SPURIOUS-FREE DYNAMIC RANGE
vs. FREQUENCY
vs. FREQUENCY
0
110
0
FFT AT 1kHz
-10
100
SAMPLE RATE = 165ksps
-20
90
SAMPLE RATE = 165ksps
-20
-30
80
-40
-40
70
-50
60
-60
-60
50
-80
-70
40
-80
30
-100
-90
20
-120
-100
10
SAMPLE RATE = 165ksps
-110
0
-140
0.1
1
10
100
0.1
1.0
10
100
0
20
40
60
80
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
Pin Description
PIN
MAX1065 MAX1066
1
1
2
2
3
3
4
4
5
—
6
—
7
—
8
—
NAME
MAX1065 MAX1066
D6
D4/D12
D7
D5/D13
D8
D6/0
D9
D7/0
D10
—
D11
—
D12
—
D13
—
9
5
R/C
10
6
11
7
12
8
13
9
14
10
EOC
AV_DD
AGND
AIN
AGND
FUNCTION
Three-State Digital Data Output
Three-State Digital Data Output. D13 is the MSB.
Three-State Digital Data Output
Three-State Digital Data Output
Three-State Digital Data Output
Three-State Digital Data Output
Three-State Digital Data Output
Three-State Digital Data Output (MSB)
Read/Convert Input. Power up and put the MAX1065/MAX1066 in acquisition
mode by holding R/C low during the first falling edge of CS. During the
second falling edge of CS the level on R/C determines whether the reference
and reference buffer power down or remain on after conversion. Set R/C high
during the second falling edge of CS to power down the reference and buffer,
or set R/C low to leave the reference and buffer powered up. Set R/C high
during the third falling edge of CS to put valid data on the bus.
End Of Conversion. EOC drives low when conversion is complete.
Analog Supply Input. Bypass with a 0.1µF capacitor to AGND.
Analog Ground. Primary analog ground (star ground).
Analog Input
Analog Ground. Connect Pin 14 to Pin 12 (MAX1065). Connect Pin 10 to Pin 8
(MAX1066).
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