MAX1179 Datasheet, PDF (6/15 Pages) Maxim Integrated Products – 16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range

16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
Typical Operating Characteristics (continued)
(AV_DD = DV_DD = +5V, external reference = +4.096V, C_REF = 10µF, C_REFADJ = 0.1µF, V_REFADJ = AV_DD, C_LOAD = 20pF, T_A = T_MIN to
T_MAX, unless otherwise noted. Typical values are at T_A = +25°C.) (Typical Application Circuit)
SINAD vs. FREQUENCY
100
90
80
70
60
50
40
30
20
10 _{fSAMPLE = 131ksps}
0
1
10
100
FREQUENCY (kHz)
SPURIOUS-FREE DYNAMIC RANGE
vs. FREQUENCY
120
100
80
60
40
20
0
1
10
100
FREQUENCY (kHz)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
1
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
10
100
FREQUENCY (kHz)
Pin Description
PIN
NAME
FUNCTION
1
D8
Three-State Digital Data Output
2
D9
Three-State Digital Data Output
3
D10
Three-State Digital Data Output
4
D11
Three-State Digital Data Output
5
D12
Three-State Digital Data Output
6
D13
Three-State Digital Data Output
7
D14
Three-State Digital Data Output
8
D15
Three-State Digital Data Output (MSB)
Read/Convert Input. Power up and place the MAX1179/MAX1187/MAX1189 in acquisition mode by
holding R/C low during the first falling edge of CS. During the second falling edge of CS, the level
9
R/C
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.
10
EOC
End of Conversion. EOC drives low when conversion is complete.
11
AV_DD
Analog Supply Input. Bypass with a 0.1µF capacitor to AGND.
12
AGND Analog Ground. Primary analog ground (star ground).
13
AIN
Analog Input
14
AGND Analog Ground. Connect pin 14 to pin 12.
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