Datasheet

LTC1659
3
1659fa
ELECTRICAL CHARACTERISTICS
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CC
= 2.7V to 5.5V, V
OUT
unloaded, REF ≤ V
CC
, T
A
= T
MIN
to T
MAX
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Offset Error Measured at Code 20
●
±12
±18
mV
mV
V
OS
TC Offset Error Temperature Coeffi cient ±15 μV/°C
V
FS
Full-Scale Voltage REF = 4.096V
●
4.070
4.060
4.095
4.095
4.120
4.130
V
V
V
FS
TC Full-Scale Voltage Temperature Coeffi cient 10 ppm/°C
Power Supply
V
CC
Positive Supply Voltage For Specifi ed Performance
●
2.7 5.5 V
I
CC
Supply Current (Note 5)
●
240 450 μA
Op Amp DC Performance
Short-Circuit Current Low V
OUT
Shorted to GND
●
70 120 mA
Short-Circuit Current High V
OUT
Shorted to V
CC
●
65 120 mA
Output Impedance to GND Input Code = 0
●
40 150
Ω
Output Line Regulation Input Code = 4095, V
CC
= 4.5V to 5.5V 0.1 1.5 LSB/V
AC Performance
Voltage Output Slew Rate (Note 3)
●
0.5 1.0 V/μs
Voltage Output Settling Time (Notes 3, 4) to ±0.5LSB 14 μs
Digital Feedthrough 0.3 nV • s
Reference Input
R
IN
REF Input Resistance
●
17 28 40 kΩ
REF REF Input Range (Notes 6, 7)
●
0V
CC
V
Digital I/O
V
IH
Digital Input High Voltage V
CC
= 5V
●
2.4 V
V
IL
Digital Input Low Voltage V
CC
= 5V
●
0.8 V
V
OH
Digital Output High Voltage V
CC
= 5V, I
OUT
= –1mA, D
OUT
Only
●
V
CC
– 1.0 V
V
OL
Digital Output Low Voltage V
CC
= 5V, I
OUT
= 1mA, D
OUT
Only
●
0.4 V
V
IH
Digital Input High Voltage V
CC
= 3V
●
2.0 V
V
IL
Digital Input Low Voltage V
CC
= 3V
●
0.6 V
V
OH
Digital Output High Voltage V
CC
= 3V, I
OUT
= –1mA, D
OUT
Only
●
V
CC
– 0.7 V
V
OL
Digital Output Low Voltage V
CC
= 3V, I
OUT
= 1mA, D
OUT
Only
●
0.4 V
I
LEAK
Digital Input Leakage V
IN
= GND to V
CC
●
±10 μA
C
IN
Digital Input Capacitance (Note 7)
●
10 pF