Datasheet
LTC2633
4
2633fb
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OUT
DAC Output Span External Reference
Internal Reference
0 to V
REF
0 to 2.5
V
V
PSR Power Supply Rejection V
CC
= 3V ± 10% or 5V ± 10% –80 dB
I
SC
Short Circuit Output Current (Note 6)
Sinking
Sourcing
V
FS
= V
CC
= 5.5V
Zero Scale; V
OUT
shorted to V
CC
Full Scale; V
OUT
shorted to GND
l
l
27
–28
48
–48
mA
mA
DAC I
SD
DAC Output Current in High Impedance
Mode
LO Options Only
l
0.01 ±0.5 µA
Power Supply
V
CC
Positive Supply Voltage For Specified Performance
l
2.7 5.5 V
I
CC
Supply Current (Note 7) V
CC
= 3V, V
REF
= 2.5V, External Reference
V
CC
= 3V, Internal Reference
V
CC
= 5V V
REF
= 2.5V, External Reference
V
CC
= 5V, Internal Reference
l
l
l
l
0.3
0.4
0.3
0.4
0.5
0.6
0.5
0.6
mA
mA
mA
mA
I
SD
Supply Current in Power-Down Mode
(Note 7)
V
CC
= 5V
l
0.5 2 µA
Reference Input
Input Voltage Range
l
1 V
CC
V
Resistance
l
120 160 200 kΩ
Capacitance 12 pF
I
REF
Reference Current, Power Down Mode DAC Powered Down
l
0.005 5 µA
Reference Output
Output Voltage
l
1.24 1.25 1.26 V
Reference Temperature Coefficient ±10 ppm/°C
Output Impedance 0.5 kΩ
Capacitive Load Driving 10 µF
Short Circuit Current V
CC
= 5.5V, REF Shorted to GND 2.5 mA
SYMBOL PARAMETER CONDITIONS
LTC2633-8 LTC2633-10 LTC2633-12 LTC2633A-12
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
GE
TC
Gain Temperature
Coefficient
V
CC
= 3V, Internal Ref. (Note 10)
C-Grade
H-Grade
10
10
10
10
10
10
10
10
ppm/°C
ppm/°C
Load Regulation Internal Ref., Mid-Scale,
V
CC
= 3V ± 10%,
–5mA ≤ I
OUT
≤ 5mA
V
CC
= 5V ± 10%,
–10mA ≤ I
OUT
≤ 10mA
l
l
0.009
0.009
0.016
0.016
0.035
0.035
0.064
0.064
0.14
0.14
0.256
0.256
0.14
0.14
0.256
0.256
LSB/mA
LSB/mA
R
OUT
DC Output
Impedance
Internal Ref., Mid-Scale,
V
CC
= 3V ± 10%,
–5mA ≤ I
OUT
≤ 5mA
V
CC
= 5V ± 10%,
–10mA ≤ I
OUT
≤ 10mA
l
l
0.09
0.09
0.156
0.156
0.09
0.09
0.156
0.156
0.09
0.09
0.156
0.156
0.09
0.09
0.156
0.156
Ω
Ω
electrical characteristics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
OUT
unloaded unless otherwise specified.
LTC2633-LI12/-LI10/-LI8/-LX12/-LX10/-LX8/-LZ12/-LZ10/-LZ8/-LO12/-LO10/-LO8/LTC2633A-LI12/-LX12/-LZ12/-LO12 (V
FS
= 2.5V)