
LTC2609/LTC2619/LTC2629
26091929fb
electrical characteristics The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. REFA = REFB = REFC = REFD = 4.096V (VCC = 5V), REFA = REFB =
REFC = REFD = 2.048V (VCC = 2.7V). REFLO = 0V, VOUT = unloaded, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
LTC2629/LTC2629-1 LTC2619/LTC2619-1 LTC2609/LTC2609-1
UNITS
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
LSB
INL
Integral Nonlinearity
(Note 2)
l
±1
±4
±16
±64
LSB
Load Regulation
VREF = VCC = 5V, Mid-Scale
IOUT = 0mA to 15mA Sourcing
IOUT = 0mA to 15mA Sinking
l
0.02
0.125
0.1
0.5
0.3
0.4
2
LSB/mA
VREF = VCC = 2.7V, Mid-Scale
IOUT = 0mA to 7.5mA Sourcing
IOUT = 0mA to 7.5mA Sinking
l
0.04
0.05
0.25
0.2
1
0.7
0.8
4
LSB/mA
ZSE
Zero-Scale Error
Code = 0
l
1.5
9
1.5
9
1.5
9
mV
VOS
Offset Error
(Note 4)
l
±1
±9
±1
±9
±1
±9
mV
VOS Temperature
Coefficient
±6
V/°C
GE
Gain Error
l
±0.1 ±0.7
±0.1
±0.7
%FSR
Gain Temperature
Coefficient
±3
ppm/°C
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
REFA = REFB = REFC = REFD = 4.096V (VCC = 5V), REFA = REFB = REFC = REFD = 2.048V (VCC = 2.7V). REFLO = 0V, VOUT = unloaded,
unless otherwise noted. (Note 9)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PSR
Power Supply Rejection
VCC ±10%
–80
dB
ROUT
DC Output Impedance
VREF = VCC = 5V, Mid-Scale; –15mA ≤ IOUT ≤ 15mA
VREF = VCC = 2.7V, Mid-Scale; –7.5mA ≤ IOUT ≤ 7.5mA
l
0.030
0.035
0.15
Ω
DC Crosstalk (Note 10)
Due to Full-Scale Output Change (Note 11)
Due to Load Current Change
Due to Powering Down (Per Channel)
±5
±4
V
V/mA
V
ISC
Short-Circuit Output Current
VCC = 5.5V, VREF = 5.5V
Code: Zero-Scale; Forcing Output to VCC
Code: Full-Scale; Forcing Output to GND
l
15
36
60
mA
VCC = 2.7V, VREF = 2.7V
Code: Zero-Scale; Forcing Output to VCC
Code: Full-Scale; Forcing Output to GND
l
7.5
22
30
50
mA
Reference Input
Input Voltage Range
l
0
VCC
V
Resistance
Normal Mode
l
88
125
160
kΩ
Capacitance
14
pF
IREF
Reference Current, Power Down Mode DAC Powered Down
l
0.001
1
A
Power Supply
VCC
Positive Supply Voltage
For Specified Performance
l
2.7
5.5
V
ICC
Supply Current
VCC = 5V (Note 3)
VCC = 3V (Note 3)
DAC Powered Down (Note 3) VCC = 5V
DAC Powered Down (Note 3) VCC = 3V
l
1.25
1
0.35
0.15
2
1.6
1
mA
A