Rainbow Electronics MAX1182 - Manual (Page 9)

MAX1182
Dual 10-Bit, 65Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
_______________________________________________________________________________________ 9
2.00
2.02
2.01
2.04
2.03
2.05
2.06
-40 10 -15 35 60 85
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1182 toc27
TEMPERATURE ( °C)
V
REFOUT
(V)
0
20000
40000
60000
80000
100000
120000
140000
160000
N-2 N-1 N N+1 N+2
OUTPUT NOISE HISTOGRAM (DC INPUT)
MAX1182 toc28
DIGITAL OUTPUT CODE
COUNTS
0 926
129421
725 0
Typical Operating Characteristics (continued)
(V DD = +3V, OV DD = +2.5V, internal reference, differential input at -0.5dB FS, f CLK = 65MHz, 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
17 T/B
T/B selects the ADC digital output format.
High: Two’s complement.
Low: Straight offset binary.
18 SLEEP
Sleep Mode Input.
High: Deactivates the two ADCs, but leaves the reference bias circuit active.
Low: Normal operation.
19 PD
Power-Down Input.
High: Power-down mode
Low: Normal operation
20 OE
Output Enable Input.
High: Digital outputs disabled
Low: Digital outputs enabled