LTC1450 Linear Technology, LTC1450 Datasheet - Page 4

• Manufacturer Part Number: LTC1450
• Description: Parallel Input/ 12-Bit Rail-to-Rail Micropower DACs in SSOP
• Manufacturer: Linear Technology

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