LTC2668I Ver la hoja de datos (PDF) - Linear Technology
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LTC2668I
Linear Technology
LTC2668I Datasheet PDF : 28 Pages
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LTC2668
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. AVP = 5V, OVP = 5V, V+ = 15V, V– = –15V, VREF = 2.5V, VOUT unloaded
unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
REFCOMP Pin Short-Circuit Current AVP = 5.5V, Forcing Output to GND
Reference Load Regulation
Reference Output Voltage Noise
Density
AVP = 5V ± 10%, IOUT = 100µA Sourcing
CREFCOMP = CREF = 0.1µF, at f = 10kHz
Reference Input Range
External Reference Mode (Note 8)
Reference Input Current
External Reference
Reference Input Capacitance (Note 9)
Power Supply
AVP
Analog Supply Voltage
V+
Analog Positive Supply
V–
Analog Negative Supply
V– Not Tied to GND
V– Tied to GND
OVP
Digital I/O Supply Voltage
IAVP
Supply Current AVP
IS
Supply Current V+/V–
AVP = 5V, Unipolar Ranges (Note 10)
AVP = 5V, Bipolar Ranges (Note 10)
Unipolar Ranges (Code = 0)
Bipolar Ranges (Note 11)
IOVP
Supply Current OVP (Note 12)
AVP Shutdown Supply Current
V+ Shutdown Supply Current
V– Shutdown Supply Current
OVP = 5V
OVP = AVP = 5V, V+/V– = ±15V
OVP = AVP = 5V, V+/V– = ±15V
OVP = AVP = 5V, V+/V– = ±15V
Monitor Mux
Monitor Mux DC Output Impedance
Monitor Mux Leakage Current
Monitor Mux Disabled (High Impedance)
Monitor Mux Output Voltage Range Monitor Mux Selected to DAC Channel
Monitor Mux Continuous Current
(Note 9)
AC Performance
tSET
Settling Time (Notes 9, 13)
±0.024% (±1LSB at 12 Bits)
0V to 5V or ±2.5V Span, ±5V Step ±0.0015% (±1LSB at 16 Bits)
Settling Time (Notes 9, 13)
±0.024% (±1LSB at 12 Bits)
0V to 10V or ±5V Span, ±10V Step ±0.0015% (±1LSB at 16 Bits)
Settling Time (Notes 9, 13)
±10V Span, ±20V Step
±0.024% (±1LSB at 12 Bits)
±0.0015% (±1LSB at 16 Bits)
SR
Voltage Output Slew Rate
Capacitive Load Driving
Glitch Impulse (Note 14)
At Mid-Scale Transition, 0V to 5V Range
DAC-to-DAC Crosstalk (Note 15) Due to Full-Scale Output Change
en
Output Voltage Noise
0V to 5V Output Span,
Internal Reference
Density at f = 1kHz
Density at f = 10kHz
0.1Hz to 10Hz, Internal Reference
0.1Hz to 200kHz, Internal Reference
MIN
l
l
0.5
l
l
l
4.5
l
4.5
l –15.75
l
1.71
l
l
l
l
l
l
l
l
–60
l
l
V–
l
TYP
MAX
UNITS
200
µA
140
mV/mA
32
nV/√Hz
AVP – 1.75
V
0.001
1
µA
40
pF
5.5
V
15.75
V
– 4.5
V
0
V
AVP + 0.3
V
5.4
6.5
mA
9.4
12
mA
4.6
6.5
mA
8
9.5
mA
0.02
1
µA
1
3
µA
35
70
µA
–27
µA
2.2
kΩ
0.02
1
µA
V+ – 1.4
V
±1
mA
4.5
µs
9
µs
8
µs
9
µs
15.5
µs
20.5
µs
5
V/µs
1000
pF
8
nV • s
6
nV • s
90
nV/√Hz
80
nV/√Hz
1.7
µVRMS
55
µVRMS
For more information www.linear.com/LTC2668
2668fa
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