Rainbow Electronics MAX1211 - Manual (Page 17)

MAX1211
65Msps, 12-Bit, IF Sampling ADC
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Pin Description (continued)
PIN NAME FUNCTION
11 CLKTYP
Clock Type Definition Input. Connect CLKTYP to GND to define the single-ended clock input. Connect
CLKTYP to OV
DD or V DD to define the differential clock input.
12–15,
36
V DD
Analog Power Input. Connect V DD to a 3.0V to 3.6V power supply. Bypass V DD to GND with a parallel
capacitor combination of ≥2.2µF and 0.1µF. Connect all V
DD pins to the same potential.
17, 34 OV
DD
Output Driver Power Input. Connect OV DD to a 1.7V to V DD power supply. Bypass OV DD to GND with a
parallel capacitor combination of ≥2.2µF and 0.1µF.
18 DOR
Data Out-of-Range Indicator. The DOR digital output indicates when the analog input voltage is out of
range. When DOR is high, the analog input is beyond its full-scale range. When DOR is low, the analog
input is within its full-scale range.
19 D11 CMOS Digital Output, Bit 11 (MSB)
20 D10 CMOS Digital Output, Bit 10
21 D9 CMOS Digital Output, Bit 9
22 D8 CMOS Digital Output, Bit 8
23 D7 CMOS Digital Output, Bit 7
24 D6 CMOS Digital Output, Bit 6
25 D5 CMOS Digital Output, Bit 5
26 D4 CMOS Digital Output, Bit 4
27 D3 CMOS Digital Output, Bit 3
28 D2 CMOS Digital Output, Bit 2
29 D1 CMOS Digital Output, Bit 1
30 D0 CMOS Digital Output, Bit 0 (LSB)
31, 32 I.C. Internally Connected. Leave I.C. unconnected.
33 DAV
Data Valid Output. The DAV is a single-ended version of the input clock that is compensated to correct
for any input clock duty-cycle variations. DAV is typically used to latch the MAX1211 output data into an
external back-end digital circuit.
37 PD Power-Down Input. Force PD high for power-down mode. Force PD low for normal operation.
38 REFOUT
Internal Reference Voltage Output. For internal reference operation, connect REFOUT directly to REFIN
or use a resistive divider from REFOUT to set the voltage at REFIN. Bypass REFOUT to GND with a
≥0.1µF capacitor.
39 REFIN Reference Input. V REFIN = 2 x (V REFP - V REFN ). Bypass REFIN to GND with a ≥0.1µF capacitor.
40 G/T
Output Format Select Input. Connect G/T to GND for the two’s complement digital output format. Connect
G/T to OV
DD or V DD for the Gray code digital output format.
— EP
Exposed Paddle. EP is internally connected to GND. Externally connect EP to GND to achieve specified
performance.