Datasheet

LTC2636
8
2636fb
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
= 4.5V to 5.5V, V
OUT
unloaded unless otherwise specified.
LTC2636-HMI12/-HMI10/-HMI8/-HMX12/-HMX10/-HMX8/-HZ12/-HZ10/-HZ8 (V
FS
= 4.096V)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OUT
DAC Output Span External Reference
Internal Reference
0 to V
REF
0 to 4.096
V
V
PSR Power Supply Rejection V
CC
= 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
Power Supply
V
CC
Positive Supply Voltage For Specified Performance
l
4.5 5.5 V
I
CC
Supply Current (Note 7) V
CC
= 5V, V
REF
= 4.096V, External Reference
V
CC
= 5V, Internal Reference
l
l
1.0
1.1
1.3
1.5
mA
mA
I
SD
Supply Current in Power-Down Mode
(Note 7)
V
CC
= 5V, C-Grade, I-Grade
V
CC
= 5V, H-Grade
l
l
0.5
0.5
20
30
µA
µA
Reference Input
V
REF
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 1.5 µA
Reference Output
Output Voltage
l
2.032 2.048 2.064 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 4 mA
Digital I/O
V
IH
Digital Input High Voltage
l
2.4 V
V
IL
Digital Input Low Voltage
l
0.8 V
I
LK
Digital Input Leakage V
IN
= GND to V
CC
l
±1 µA
C
IN
Digital Input Capacitance (Note 8)
l
2.5 pF
AC Performance
t
S
Settling Time V
CC
= 5V (Note 9)
±0.39% (±1LSB at 8 Bits)
±0.098% (±1LSB at 10 Bits)
±0.024% (±1LSB at 12 Bits)
3.8
4.3
4.8
µs
µs
µs
Voltage Output Slew Rate 1.0 V/µs
Capacitive Load Driving 500 pF
Glitch Impulse At Mid-Scale Transition 3.0 nV•s
DAC-to-DAC Crosstalk 1 DAC held at FS, 1 DAC Switch 0-FS 2.4 nV•s
Multiplying Bandwidth External Reference 320 kHz