Datasheet

LTC1272
7
1272fc
For more information www.linear.com/1272
TYPICAL PERFORMANCE CHARACTERISTICS
V
DD
Supply Current vs
Temperature
Minimum Clock Frequency vs
Temperature
Maximum Clock Frequency vs
Temperature
V
REF
vs I
LOAD
(mA) LTC1272 ENOBs* vs Frequency
Differential Nonlinearity
CODE
0
INL ERROR (LSBs)
–1.0
1.0
512 1024 4096
LTC1272 • G02
1536 2048 2560 3072 3584
0
V
DD
= 5V
f
CLK
= 4MHz
0
0.5
–0.5
TEMPERATURE (°C)
–55
0
V
DD
SUPPLY CURRENT, I
DD
(mA)
5
10
15
20
25
30
–25 25 50 125
LT1272 • G03
0 75 100
V
DD
= 5V
f
CLK
= 4MHz
TEMPERATURE (°C)
–55
0
CLOCK FREQUENCY (kHz)
100
200
300
400
500
600
–25 25 50 125
LT1272 • G04
0 75 100
V
DD
= 5V
TEMPERATURE (°C)
–55
2
CLOCK FREQUENCY (MHz)
3
4
5
6
7
8
–25 25 50 125
LT1272 • G05
0 75 100
I
L
(mA)
–5
2.405
V
REF
(V)
2.410
2.415
2.420
2.425
2.430
2.435
–4 –2 –1 2
LT1272 • G06
–3 0 1
f
IN
(kHz)
0
0
ENOBs*
1
4
6
8
10
12
20 60 80 120
LT1272 • G07
40 100
2
3
5
7
9
11
f
S
= 250kHz
V
DD
= 5V
*EFFECTIVE NUMBER OF BITS, ENOBs =
S/(N + D) – 1.76dB
6.02