Datasheet

LTC2604/LTC2614/LTC2624
3
2604fd
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PSR Power Supply Rejection V
CC
= 5V ±10%
V
CC
= 3V ±10%
–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
0.025
0.030
0.15
0.15
Ω
Ω
DC Crosstalk (Note 4) Due to Full Scale Output Change (Note 5)
Due to Load Current Change
Due to Powering Down (per Channel)
±5
±1
±3.5
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
36
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
18
24
50
50
mA
mA
Reference Input
Input Voltage Range
l
0V
CC
μA
Resistance Normal Mode
l
88 128 160 kΩ
Capacitance 14 pF
I
REF
Reference Current, Power Down Mode All DACs 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)
All DACs Powered Down (Note 3) V
CC
= 5V
All DACs Powered Down (Note 3) V
CC
= 3V
l
l
l
l
1.3
1
0.35
0.10
2
1.6
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
ELECTRICAL CHARACTERISTICS
The ● denotes specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. REF A = REF B = REF C = REF D = 4.096V (V
CC
= 5V), REF A = REF B =
REF C = REF D = 2.048V (V
CC
= 2.5V), REF LO = 0V, V
OUT
unloaded, unless otherwise noted. (Note 10)
SYMBOL PARAMETER CONDITIONS
LTC2624/LTC2624-1 LTC2614/LTC2614-1 LTC2604/LTC2604-1
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
Load Regulation V
REF
= V
CC
= 5V, Midscale
I
OUT
= 0mA to 15mA Sourcing
I
OUT
= 0mA to 15mA Sinking
l
l
0.025
0.025
0.125
0.125
0.1
0.1
0.5
0.5
0.3
0.3
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
0.05
0.05
0.25
0.25
0.2
0.2
1
1
0.7
0.7
4
4
LSB/mA
LSB/mA
ZSE Zero-Scale Error
l
1.5 9 1.5 9 1.5 9 mV
V
OS
Offset Error (Note 7)
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
±0.1 ±0.7 ±0.1 ±0.7 ±0.1 ±0.7 %FSR
Gain Temperature
Coeffi cient
±5 ±5 ±5 ppm/°C
The ● denotes specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T
A
= 25°C. REF
A = REF B = REF C = REF D = 4.096V (V
CC
= 5V), REF A = REF B = REF C = REF D = 2.048V (V
CC
= 2.5V), REF LO = 0V, V
OUT
unloaded,
unless otherwise noted. (Note 10)