Datasheet
LTC2605/LTC2615/LTC2625
3
2605fa
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. REF = 4.096V (V
CC
= 5V), REF = 2.048V (V
CC
= 2.7V), V
OUT
unloaded,
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
LTC2625/LTC2625-1 LTC2615/LTC2615-1 LTC2605/LTC2605-1
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
DC Performance
Resolution
l
12 14 16 Bits
Monotonicity (Note 2)
l
12 14 16 Bits
DNL Differential Nonlinearity (Note 2)
l
±0.5 ±1 ±1 LSB
INL Integral Nonlinearity (Note 2)
l
±1 ±4 ±4 ±16 ±18 ±64 LSB
Load Regulation V
REF
= V
CC
= 5V, Mid-Scale
I
OUT
= 0mA to 15mA Sourcing
I
OUT
= 0mA to 15mA Sinking
l
l
0.02
0.03
0.125
0.125
0.07
0.10
0.5
0.5
0.3
0.4
2
2
LSB/mA
LSB/mA
V
REF
= V
CC
= 2.7V, Mid-Scale
I
OUT
= 0mA to 7.5mA Sourcing
I
OUT
= 0mA to 7.5mA Sinking
l
l
0.04
0.07
0.25
0.25
0.15
0.20
1
1
0.6
0.8
4
4
LSB/mA
LSB/mA
ZSE Zero-Scale Error Code = 0
l
1.7 9 1.7 9 1.7 9 mV
V
OS
Offset Error (Note 4)
l
±1 ±9 ±1 ±9 ±1 ±9 mV
V
OS
Temperature
Coeffi cient
±5 ±5 ±5 μV/°C
GE Gain Error
l
±0.1 ±0.7 ±0.1 ±0.7 ±0.1 ±0.7 %FSR
Gain Temperature
Coeffi cient
±8 ±8 ±8 ppm/°C
The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T
A
= 25°C.
REF = 4.096V (V
CC
= 5V), REF = 2.048V (V
CC
= 2.7V), V
OUT
unloaded, unless otherwise noted. (Note 9)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PSR Power Supply Rejection V
CC
±10% –80 dB
R
OUT
DC Output Impedance V
REF
= V
CC
= 5V, Mid-Scale; –15mA ≤ I
OUT
≤ 15mA
V
REF
= V
CC
= 2.7V, Mid-Scale; –7.5mA ≤ I
OUT
≤ 7.5mA
l
l
0.02
0.03
0.15
0.15
Ω
Ω
DC Crosstalk (Note 10) Due to Full-Scale Output Change (Note 11)
Due to Load Current Change
Due to Powering Down (per Channel)
±10
±3.5
±7
μV
μV/mA
μV
I
SC
Short-Circuit Output Current V
CC
= 5.5V, V
REF
= 5.5V
Code: Zero-Scale; Forcing Output to V
CC
Code: Full-Scale; Forcing Output to GND
l
l
15
15
34
34
60
60
mA
mA
V
CC
= 2.7V, V
REF
= 2.7V
Code: Zero-Scale; Forcing Output to V
CC
Code: Full-Scale; Forcing Output to GND
l
l
7.5
7.5
20
27
50
50
mA
mA
Reference Input
Input Voltage Range
l
0V
CC
V
Resistance Normal Mode
l
11 16 20 kΩ
Capacitance 90 pF
I
REF
Reference Current, Power-Down Mode DAC Powered Down
l
0.001 1 μA
Power Supply
V
CC
Positive Supply Voltage For Specifi ed Performance
l
2.7 5.5 V
I
CC
Supply Current V
CC
= 5V (Note 3)
V
CC
= 3V (Note 3)
DAC Powered Down (Note 3), V
CC
= 5V
DAC Powered Down (Note 3), V
CC
= 3V
l
l
l
l
2.50
2.00
0.38
0.16
4.0
3.2
1.0
1.0
mA
mA
μA
μA