Datasheet
LTC2632
7
2632fa
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.
LTC2632-HI12/-HI10/-HI8/-HZ12/-HZ10/-HZ8, LTC2632A-HI12/-HZ12 (V
FS
= 4.096V)
SYMBOL PARAMETER CONDITIONS
LTC2632-8 LTC2632-10 LTC2632-12 LTC2632A-12
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX
DC Performance
Resolution
l
8 10 12 12 Bits
Monotonicity V
CC
= 5V, Internal Ref. (Note 4)
l
8 10 12 12 Bits
DNL Differential
Nonlinearity
V
CC
= 5V, Internal Ref. (Note 4)
l
±0.5 ±0.5 ±1 ±1 LSB
INL Integral
Nonlinearity
V
CC
= 5V, Internal Ref. (Note 4)
l
±0.05 ±0.5 ±0.2 ±1 ±1 ±2.5 ±0.5 ±1 LSB
ZSE Zero-Scale
Error
V
CC
= 5V, Internal Ref., Code = 0
l
0.5 5 0.5 5 0.5 5 0.5 5 mV
V
OS
Offset Error V
CC
= 5V, 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
= 5V, Internal Ref. ±10 ±10 ±10 ±10 µV/°C
GE Gain Error V
CC
= 5V, Internal Ref.
l
0.2 0.8 0.2 0.8 0.2 0.8 0.2 0.8 %FSR
GE
TC
Gain
Temperature
Coefficient
V
CC
= 5V, Internal Ref. (Note 10)
C-Grade
H-Grade
10
10
10
10
10
10
10
10
ppm/°C
ppm/°C
Load
Regulation
V
CC
= 5V±10%, Internal Ref.
Mid-Scale, –10mA ≤ I
OUT
≤ 10mA
l
0.006 0.01 0.022 0.04 0.09 0.16 0.09 0.16 LSB/
mA
R
OUT
DC Output
Impedance
V
CC
= 5V±10%, Internal Ref.
Mid-Scale, –10mA ≤ I
OUT
≤ 10mA
l
0.09 0.156 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 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
0.4
0.5
0.6
0.7
mA
mA
I
SD
Supply Current in Power-Down Mode
(Note 7)
V
CC
= 5V
l
0.5 2 µA