LTC2634
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VOUT unloaded unless otherwise specified.
LTC2634-LMI12/-LMI10/-LMI8/-LMX12/-LMX10/-LMX8/-LZ12/-LZ10/-LZ8 (VFS = 2.5V)
LTC2634-8
LTC2634-10
LTC2634-12
SYMBOL PARAMETER
DC Performance
Resolution
CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
l
l
l
l
l
l
8
8
10
10
12
12
ꢀits
ꢀits
Monotonicity
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 3V, Internal Ref. (Note 4)
= 3V, Internal Ref. (Note 4)
= 3V, Internal Ref. (Note 4)
= 3V, Internal Ref., Code = 0
= 3V, Internal Ref. (Note 5)
= 3V, Internal Ref.
DNL
INL
Differential Nonlinearity
0.5
0.5
1
1
2.5
5
LSꢀ
LSꢀ
mV
Integral Nonlinearity
Zero-Scale Error
Offset Error
0.05 0.5
0.2
0.5
0.5
10
1
0.5
0.5
10
ZSE
0.5
0.5
10
5
5
V
V
5
5
5
mV
OS
V
Temperature
μV/°C
OSTC
OS
Coefficient
l
GE
GE
Gain Error
V
V
= 3V, Internal Ref.
0.2 0.8
0.2 0.8
0.2
0.8
%FSR
CC
Gain Temperature
Coefficient
= 3V, Internal Ref. (Note 10)
TC
CC
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
= 3V 10%, –5mA ꢁ I
l
l
l
l
V
CC
ꢁ 5mA
OUT
0.009 0.016
0.009 0.016
0.09 0.156
0.09 0.156
0.035 0.064
0.035 0.064
0.09 0.156
0.09 0.156
0.14 0.256 LSꢀ/mA
0.14 0.256 LSꢀ/mA
Internal Ref., Mid-Scale
= 5V 10%, –10mA ꢁ I
V
ꢁ 10mA
OUT
CC
R
OUT
DC Output Impedance
Internal Ref., Mid-Scale
= 3V 10%, –5mA ꢁ I
V
CC
ꢁ 5mA
OUT
0.09 0.156
0.09 0.156
Ω
Ω
Internal Ref., Mid-Scale
= 5V 10%, –10mA ꢁ I
V
CC
ꢁ 10mA
OUT
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
0 to V
MAX
UNITS
V
OUT
DAC Output Span
External Reference
Internal Reference
V
V
REF
0 to 2.5
PSR
Power Supply Rejection
V
V
= 3V 10% or 5V 10%
–80
dꢀ
CC
I
SC
Short-Circuit Output Current (Note 6)
Sinking
Sourcing
= V = 5.5V
CC
FS
l
Zero-Scale; V
Shorted to V
Shorted to GND
27
–27
48
–48
mA
mA
OUT
CC
l
Full-Scale; V
OUT
Power Supply
l
V
Positive Supply Voltage
Supply Current (Note 7)
For Specified Performance
2.7
5.5
V
CC
l
l
l
l
I
CC
V
CC
V
CC
V
CC
V
CC
= 3V, V = 2.5V, External Reference
0.5
0.6
0.6
0.7
0.7
0.8
0.8
0.9
mA
mA
mA
mA
REF
= 3V, Internal Reference
= 5V V = 2.5V, External Reference
REF
= 5V, Internal Reference
l
l
I
Supply Current in Power-Down Mode (Note 7)
V
CC
V
CC
= 5V, C-Grade, I-Grade
= 5V, H-Grade
0.5
0.5
10
15
μA
μA
SD
2634f
5