LTC1450/LTC1450L
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
Reference Input (REFLO = GND)
REFHI Input Range
REFHI Input Resistance
REFHI Input Capacitance
Power Supply
Positive Supply Voltage
V
CC
I
CC
Supply Current
V
CC
= 4.5V to 5.5V (LTC1450), 2.7V to 5.5V (LTC1450L), V
OUT
unloaded,
REFOUT = REFHI, REFLO = GND = X1/X2, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
CONDITIONS
V
REFHI
≤
V
CC
– 1.5V
q
q
MIN
TYP
MAX
V
CC
/2
30
UNITS
V
kΩ
pF
V
V
µA
µA
mA
mA
Ω
V/µs
µs
(nV)(s)
dB
dB
V
V
V
V
V
µA
pF
8
18
15
For Specified Performance, LTC1450L
LTC1450
4.5V
≤
V
CC
≤
5.5V (Note 4) LTC1450
2.7V
≤
V
CC
≤
5.5V (Note 4) LTC1450L
V
OUT
Shorted to GND
V
OUT
Shorted to V
CC
Input Code = 0
(Note 2)
(Notes 2, 3) to
±0.5LSB
LDAC = 1
REFHI = 1kHz, 2V
P–P
REFHI = 1kHz, 2V
P–P
(Code: All 1’s)
V
CC
= 3V, LTC1450L
V
CC
= 5V, LTC1450
V
CC
= 3V, LTC1450L
V
CC
= 5V, LTC1450
LTC1450L
V
CC
= 5V, V
IN
= GND to V
CC
Guaranteed by Design. Not Subject to Test
q
q
q
q
q
q
q
q
2.7
4.5
300
150
400
250
5.5
5.5
620
500
100
120
120
Op Amp DC Performance
Short-Circuit Current Low
Short-Circuit Current High
Output Impedance to GND
AC Performance
Voltage Output Slew Rate
Voltage Output Settling Time
Digital Feedthrough
AC Feedthrough
SINAD
Signal-to-Noise + Distortion
Digital Inputs
V
IH
Digital Input High Voltage
V
IL
V
LTH
I
LEAK
C
IN
Digital Input Low Voltage
Logic Threshold Voltage
Digital Input Leakage
Digital Input Capacitance
40
0.5
1.0
14
5
– 95
85
q
q
q
q
2.2
2.4
0.8
0.8
V
CC
/2
– 10
10
10
q
q
3
LINER [ LINEAR TECHNOLOGY ]
