Rainbow Electronics MAX1211 - Manual (Page 21)

MAX1211
65Msps, 12-Bit, IF Sampling ADC
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GRAY CODE
OUTPUT CODE
(G /T T T T = 1)
TWO’S COMPLEMENT
OUTPUT CODE
(G /T T T T = 0)
BINARY
D11 D0
DOR
HEXADECIMAL
EQUIVALENT
OF
D11 D0
DECIMAL
EQUIVALENT
OF
D11 D0
(CODE 10 )
BINARY
D11 D0
DOR
HEXADECIMAL
EQUIVALENT
OF
D11 D0
DECIMAL
EQUIVALENT
OF
D11 D0
(CODE 10 )
V
IN P
- V
IN N
V REFP = 2.162 V
V REFN = 1.138 V
1000 0000 0000 1 0x800 +4095 0111 1111 1111 1 0x7FF +2047
>+1.0235V
(DATA OUT OF
RANGE)
1000 0000 0000 0 0x800 +4095 0111 1111 1111 0 0x7FF +2047 +1.0235V
1000 0000 0001 0 0x801 +4094 0111 1111 1110 0 0x7FE +2046 +1.0230V
1100 0000 0011 0 0xC03 +2050 0000 0000 0010 0 0x002 +2 +0.0010V
1100 0000 0001 0 0xC01 +2049 0000 0000 0001 0 0x001 +1 +0.0005V
1100 0000 0000 0 0xC00 +2048 0000 0000 0000 0 0x000 0 +0.0000V
0100 0000 0000 0 0x400 +2047 1111 1111 1111 0 0xFFF -1 -0.0005V
0100 0000 0001 0 0x401 +2046 1111 1111 1110 0 0xFFE -2 -0.0010V
0000 0000 0001 0 0x001 +1 1000 0000 0001 0 0x801 -2047 -1.0235V
0000 0000 0000 0 0x000 0 1000 0000 0000 0 0x800 -2048 -1.0240V
0000 0000 0000 1 0x000 0 1000 0000 0000 1 0x800 -2048
<-1.0240V
(DATA OUT OF
RANGE)
( )
Table 2. Output Codes vs. Input Voltage
DAV
D0–D11
(V REFP - V REFN )
(V REFN - V REFP )
N + 4 N + 5
N + 6
N - 2
N - 3
DOR
8.5 CLOCK-CYCLE DATA LATENCY
DIFFERENTIAL ANALOG INPUT (INP - INN)
CLKN
CLKP
t AD
t CL t CH
t SETUP
t SETUP
t HOLD
t HOLD
t DAV
N N + 1 N + 2 N + 3 N + 5 N + 6 N + 7 N - 1 N - 2 N - 3 N + 9 N + 8 N + 4
N N + 1
N + 2
N + 3
N + 7
N + 8
N + 9
N - 1
Figure 5. System Timing Diagram