Rainbow Electronics MAX1205 - Manual (Page 6)

MAX1205
+5V Single-Supply, 1Msps, 14-Bit
Self-Calibrating ADC
6 _______________________________________________________________________________________
0
-105
-120
-135
-90
-75
-60
-45
-30
-15
0 200 100 300 400 500 600
TYPICAL FFT
(f IN = 504.5kHz, 2048 VALUE RECORD)
MAX1205-09
FREQUENCY (kHz)
AMPLITUDE (dBFS)
Typical Operating Characteristics (continued)
(AV DD = +5V ±5%, DV DD = DRV DD = +3.3V, V RFPS = +4.096V, V RFNS = AGND, V CM = +2.048V, differential input, f CLK = 2.048MHz,
calibrated, T A = +25°C, unless otherwise noted.)
1 1000 100 10
EFFECTIVE NUMBER OF BITS
vs. INPUT FREQUENCY
MAX1205-10
INPUT FREQUENCY (kHz)
ENOB (Bits)
10.0
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
A IN = -0.5dBFS
A
IN
= -6dBFS
A IN = -20dBFS
Pin Description
PIN
Digital Input to Start Calibration.
ST_CAL = 0: Normal conversion mode.
ST_CAL = 1: Start self-calibration. ST_CAL 1
FUNCTION NAME
Analog Ground AGND 2, 4, 5
Data Out-of-Range Bit DOR 7
Analog Power Supply, +5V ±5% AV DD 3, 6
Bit 12 D12 9
Bit 10 D10 11
Bit 11 D11 10
Bit 13 (MSB) D13 8
Bit 8 D8 13
Bit 6 D6 15
Bit 7 D7 14
Digital Ground DGND 17, 28, 29
Bit 4 D4 19
Bit 5 D5 18
Digital Power Supply for the Output Drivers, +3V to +5.25V, DRV DD
≤
DV DD DRV DD 16
Bit 9 D9 12
Bit 2 D2 21
Bit 3 D3 20
Bit 0 (LSB) D0 23
Bit 1 D1 22
Test Pin 3. Leave unconnected. TEST3 24