Datasheet

LTC2601/LTC2611/LTC2621
3
2601fb
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
= 2.5V), V
OUT
unloaded,
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
LTC2621/ LTC2621-1 LTC2611/ LTC2611-1 LTC2601/ LTC2601-1
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
±0.8 ±4 ±3 ±16 ±13 ±64 LSB
Load Regulation V
REF
= V
CC
= 5V, Midscale
I
OUT
= 0mA to 15mA Sourcing
I
OUT
= 0mA to 15mA Sinking
l
l
0.03
0.04
0.125
0.125
0.10
0.15
0.5
0.5
0.45
0.60
2
2
LSB/mA
LSB/mA
V
REF
= V
CC
= 2.5V, Midscale
I
OUT
= 0mA to 7.5mA Sourcing
I
OUT
= 0mA to 7.5mA Sinking
l
l
0.06
0.08
0.25
0.25
0.2
0.3
1
1
0.9
1.2
4
4
LSB/mA
LSB/mA
ZSE Zero-Scale Error Code = 0
l
19 19 19 mV
V
OS
Offset Error (Note 5)
l
±1.5 ±9 ±1.5 ±9 ±1.5 ±9 mV
V
OS
Temperature
Coeffi cient
±5 ±5 ±5 μV/°C
GE Gain Error
l
±0.03 ±0.7 ±0.1 ±0.7 ±0.05 ±0.7 %FSR
Gain Temperature
Coeffi cient
±2 ±2 ±2 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
= 2.5V), V
OUT
unloaded, unless otherwise noted. (Note 8)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PSR Power Supply Rejection V
CC
= 5V ±10%
V
CC
= 3V ±10%
l
–80
–80
dB
dB
R
OUT
DC Output Impedance V
REF
= V
CC
= 5V, Midscale; –15mA ≤ I
OUT
≤ 15mA
V
REF
= V
CC
= 2.5V, Midscale; –7.5mA ≤ I
OUT
≤ 7.5mA
l
l
0.04
0.05
0.15
0.15
Ω
Ω
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
35
39
60
60
mA
mA
V
CC
= 2.5V, V
REF
= 2.5V
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
0 VCC V
Resistance Normal Mode
l
88 124 160 kΩ
Capacitance 15 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
2.5 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
0.375
0.30
0.40
0.10
0.55
0.45
1
1
mA
mA
μA
μA
Digital I/O
V
IH
Digital Input High Voltage V
CC
= 2.5V to 5.5V
V
CC
= 2.5V to 3.6V
l
l
2.4
2.0
V
V