LTC2630
4
2630ff
electrical characteristics
SYMBOL PARAMETER CONDITIONS
LTC2630-8 LTC2630-10 LTC2630-12 LTC2630A-12
UNITS
MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
DC Performance
Resolution
l
8 10 12 12 Bits
Monotonicity V
CC
= 3V, Internal Ref. (Note 4)
l
8 10 12 12 Bits
DNL Differential Nonlinearity V
CC
= 3V, Internal Ref. (Note 4)
l
±0.5 ±0.5 ±1 ±1 LSB
INL Integral Nonlinearity V
CC
= 3V, Internal Ref. (Note 4)
l
±0.05 ±0.5 ±0.2 ±1 ±1 ±2 ±0.5 ±1 LSB
ZSE Zero Scale Error V
CC
= 3V, Internal Ref., Code = 0
l
0.5 5 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 ±0.5 ±5 mV
V
OSTC
V
OS
Temperature
Coefficient
V
CC
= 3V, Internal Ref. (Note 5) ±10 ±10 ±10 ±10 µV/°C
FSE Full Scale Error V
CC
= 3V, Internal Ref.
l
±0.2 ±0.8 ±0.2 ±0.8 ±0.2 ±0.8 ±0.2 ±0.8 %FSR
V
FSTC
Full Scale Voltage
Temperature
Coefficient
V
CC
= 3V, Internal Ref. (Note 10)
C-Grade
I-Grade
H-Grade
±10
±10
±10
±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
V
CC
= 5V ±10%, –10mA ≤ I
OUT
≤ 10mA
l
l
0.008
0.008
0.016
0.016
0.03
0.03
0.064
0.064
0.13
0.13
0.256
0.256
0.13
0.13
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
0.08
0.08
0.156
0.156
0.08
0.08
0.156
0.156
0.08
0.08
0.156
0.156
0.08
0.08
0.156
0.156
Ω
Ω
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.
LTC2630-LM12/-LM10/-LM8/-LZ12/-LZ10/-LZ8, LTC2630A-LM12/-LZ12 (V
FS
= 2.5V)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OUT
DAC Output Span Supply as Reference
Internal Reference
0V to V
CC
0V 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
50
–50
mA
mA
Power Supply
V
CC
Power Supply Voltage For Specified Performance
l
2.7 5.5 V
I
CC
Supply Current (Note 7) V
CC
= 3V, Supply as Reference
V
CC
= 3V, Internal Reference
V
CC
= 5V, Supply as Reference
V
CC
= 5V, Internal Reference
l
l
l
l
160
180
180
190
220
240
250
260
µA
µA
µA
µA
I
SD
Supply Current in Power-Down Mode
(Note 7)
V
CC
= 5V, C-Grade, I-Grade
V
CC
= 5V, H-Grade
l
l
0.36
0.36
1.8
5
µA
µA
Digital I/O
V
IH
Digital Input High Voltage V
CC
= 3.6V to 5.5V
V
CC
= 2.7V to 3.6V
l
l
2.4
2.0
V
V
V
IL
Digital Input Low Voltage V
CC
= 4.5V to 5.5V
V
CC
= 2.7V to 4.5V
l
l
0.8
0.6
V
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
