LTC2634
5
2634fc
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.
LTC2634-LMI12/-LMI10/-LMI8/-LMX12/-LMX10/-LMX8/-LZ12/-LZ10/-LZ8 (V
FS
= 2.5V)
LTC2634-8 LTC2634-10 LTC2634-12
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
DC Performance
Resolution
l
8 10 12 Bits
Monotonicity V
CC
= 3V, Internal Ref. (Note 4)
l
8 10 12 Bits
DNL Differential Nonlinearity V
CC
= 3V, Internal Ref. (Note 4)
l
±0.5 ±0.5 ±1 LSB
INL Integral Nonlinearity V
CC
= 3V, Internal Ref. (Note 4)
l
±0.05 ±0.5 ±0.2 ±1 ±1 ±2.5 LSB
ZSE Zero-Scale Error V
CC
= 3V, Internal Ref., Code = 0
l
0.5 5 0.5 5 0.5 5 mV
V
OS
Offset Error V
CC
= 3V, Internal Ref. (Note 5)
l
±0.5 ±5 ±0.5 ±5 ±0.5 ±5 mV
V
OSTC
V
OS
Temperature
Coefficient
V
CC
= 3V, Internal Ref. ±10 ±10 ±10 µV/°C
GE Gain Error V
CC
= 3V, Internal Ref.
l
±0.2 ±0.8 ±0.2 ±0.8 ±0.2 ±0.8 %FSR
GE
TC
Gain Temperature
Coefficient
V
CC
= 3V, Internal Ref. (Note 10)
C-Grade
I-Grade
H-Grade
10
10
10
10
10
10
10
10
10
ppm/°C
ppm/°C
ppm/°C
Load Regulation Internal Ref., Mid-Scale
V
CC
= 3V ±10%, –5mA ≤ I
OUT
≤ 5mA
l
0.009
0.016
0.035
0.064
0.14
0.256
LSB/mA
Internal Ref., Mid-Scale
V
CC
= 5V ±10%, –10mA ≤ I
OUT
≤ 10mA
l
0.009
0.016
0.035
0.064
0.14
0.256
LSB/mA
R
OUT
DC Output Impedance Internal Ref., Mid-Scale
V
CC
= 3V ±10%, –5mA ≤ I
OUT
≤ 5mA
l
0.09
0.156
0.09
0.156
0.09
0.156
Ω
Internal Ref., Mid-Scale
V
CC
= 5V ±10%, –10mA ≤ I
OUT
≤ 10mA
l
0.09
0.156
0.09
0.156
0.09
0.156
Ω
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
–27
48
–48
mA
mA
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
0.5
0.6
0.6
0.7
0.7
0.8
0.8
0.9
mA
mA
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
