LTC1450/LTC1450L
ELECTRICAL CHARACTERISTICS
t
t
t
t
t
CS (MSB or LSB) Pulse Width
WR Pulse Width
●
●
●
●
40
40
0
ns
ns
ns
ns
CS
WR
CS to WR Setup
CWS
CWH
DWS
CS to WR Hold
0
Data Valid to WR Setup
V
V
V
= 4.5V to 5.5V (LTC1450)
= 2.7V to 3.6V (LTC1450L)
= 5V (LTC1450L)
●
●
40
40
15
15
10
ns
ns
ns
CC
CC
CC
t
Data Valid to WR Hold
V
V
V
= 4.5V to 5.5V (LTC1450)
= 2.7V to 3.6V (LTC1450L)
= 5V (LTC1450L)
●
●
0
0
–10
–10
–5
ns
ns
ns
DWH
CC
CC
CC
t
t
LDAC Pulse Width
CLR Pulse Width
●
●
40
40
ns
ns
LDAC
CLR
The
●
denotes specifications which apply over the full operating
DAC switched all 1’s and the code corresponding to V
the part.
for
OS(MAX)
temperature range.
Nonlinearity is defined from the first code that is greater than or
Digital inputs at 0V or V .
CC
equal to the maximum offset specification to code 4095 (full-scale).
Digital inputs swing 10% to 90% of V , t = t = 5ns and timing
CC
r
f
measurements are from V /2.
Load is 5kΩ in parallel with 100pF.
CC
W
U
TYPICAL PERFORMANCE CHARACTERISTICS
450
8
7
5.8
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.2
4.0
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
V
= 5V
∆V
< 1LSB
LTC1450
LTC1450L
CC
OUT
440
430
420
410
400
390
380
370
360
350
ALL LOGIC INPUTS
TIED TOGETHER
6
5
V
= 5.5V
CC
CC
LTC1450
V
= 5V
CC
LTC1450L
4
3
V
= 4.5V
2
1
0
0.01
0.1
1
10
100
–55 –35 –15
5
25 45 65
85 105
125
0
0.5 1.0 1.5 2.0
3.0 3.5 4.0 4.5 5.0
2.5
LOAD CURRENT (mA)
TEMPERATURE (°C)
LOGIC INPUT VOLTAGE (V)
1450/50L G01
1450/50L G02
1450/50L G03
4
Linear [ Linear ]
