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