Datasheet

LTC1662
3
1662fa
electrical characteristics
The l denotes the specifications which apply over the full operating
temperature range (T
A
= T
MIN
to T
MAX
), otherwise specifications are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
REF
≤ V
CC
, V
OUT
unloaded
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Accuracy
Resolution
l
10 Bits
Monotonicity (Note 2)
l
10 Bits
DNL Differential Nonlinearity (Note 2)
l
±0.12 ±0.75 LSB
INL Integral Nonlinearity (Note 2)
l
±0.8 ±4 LSB
V
OS
Offset Error V
CC
= 5V, V
REF
= 4.096V, Measured at Code 20
l
±5 ±25 mV
V
OS
TC V
OS
Temperature Coefficient ±15 µV/°C
GE Gain Error V
CC
= 5V, V
REF
= 4.096V
l
±1 ±8 LSB
GE TC Gain Error Temperature Coefficient ±12 µV/°C
PSR Power Supply Rejection V
REF
= 2.5V 0.18 LSB/V
Reference Input
Input Voltage Range
l
0 V
CC
V
Input Resistance Active Mode
Sleep Mode
l
3.9 7.1
2.5
MΩ
GΩ
Input Capacitance 10 pF
Power Supply
V
CC
Positive Supply Voltage For Specified Performance
l
2.7 5.5 V
I
CC
Supply Current V
CC
= 3V (Note 3)
V
CC
= 5V (Note 3)
V
CC
= 3V (Note 3)
V
CC
= 5V (Note 3)
l
l
3.0
3.5
4.0
4.5
5.0
5.5
µA
µA
µA
µA
Sleep Mode Operating Current Supply Plus Reference Current, V
CC
= V
REF
= 5V (Note 3)
l
0.05 0.10
0.18
µA
µA
DC Performance
Short-Circuit Current Low V
OUT
= 0V, V
CC
= V
REF
= 5V, Code = 1023 (Note 7)
l
5 12 70 mA
Short-Circuit Current High V
OUT
= V
CC
= V
REF
= 5V, Code = 0 (Note 7)
l
3 10 80 mA
AC Performance
Voltage Output Slew Rate Rising (Notes 4, 5)
Falling (Notes 4, 5)
20
7
V/ms
V/ms
Voltage Output Settling Time Rising 0.1V
FS
to 0.9V
FS
±0.5LSB (Notes 4, 5)
Falling 0.9V
FS
to 0.1V
FS
±0.5LSB (Notes 4, 5)
0.40
0.75
ms
ms
Capacitive Load Driving 1000 pF
Digital I/O
V
IH
Digital Input High Voltage V
CC
= 2.7V 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 5.5V
l
l
0.8
0.6
V
V
I
LK
Digital Input Leakage V
IN
= GND to V
CC
l
±0.05 ±1.0 µA
C
IN
Digital Input Capacitance 1.5 pF