LTC1867LACGN Просмотр технического описания (PDF) - Linear Technology
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LTC1867LACGN Datasheet PDF : 16 Pages
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LTC1863L/LTC1867L
CONVERTER CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VDD = 2.7V, external VREF = 1.25V (Notes 5, 6)
LTC1863L
LTC1867L
LTC1867LA
PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Gain Error
Unipolar
Bipolar
±6
±96
±64
LSB
±6
±96
±64
LSB
Gain Error Match
Unipolar
Bipolar
±1
±4
±1
±4
±3
LSB
±3
LSB
Gain Error Tempco
Internal Reference
External Reference
±20
±20
±20
ppm/°C
±3
±3
±3
ppm/°C
Power Supply Sensitivity
VDD = 2.7V – 3.6V
±1
±3
±3
LSB
DYNAMIC ACCURACY VDD = 3V, external VREF = 1.25V (Note 5)
SYMBOL
SNR
S/(N+D)
THD
PARAMETER
Signal-to-Noise Ratio
Signal-to-(Noise + Distortion) Ratio
Total Harmonic Distortion
Peak Harmonic or Spurious Noise
Channel-to-Channel Isolation
Full Power Bandwidth
CONDITIONS
1kHz Input Signal
1kHz Input Signal
1kHz Input Signal, Up to 5th Harmonic
1kHz Input Signal
100kHz Input Signal
–3dB Point
LTC1863L
MIN TYP MAX
73.1
73
– 91.8
– 94.8
–100
1.25
LTC1867L/LTC1867LA
MIN TYP MAX
83.7
83.1
– 92.3
– 95.1
–112
1.25
UNITS
dB
dB
dB
dB
dB
MHz
ANALOG INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 5)
LTC1863L/LTC1867L/LTC1867LA
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
Analog Input Range
Unipolar Mode (Note 9)
Bipolar Mode
l
0 to 2.5
V
l
±1.25
V
CIN
Analog Input Capacitance for CH0 to Between Conversions (Sample Mode)
CH7/COM
During Conversions (Hold Mode)
32
pF
4
pF
tACQ
Sample-and-Hold Acquisition Time
Input Leakage Current
On Channels, CHX = 0V or VDD
l 2.01
1.68
µs
l
±1
µA
INTERNAL REFERENCE CHARACTERISTICS (Note 5)
PARAMETER
VREF Output Voltage
VREF Output Tempco
VREF Line Regulation
VREF Output Resistance
REFCOMP Output Voltage
CONDITIONS
IOUT = 0
IOUT = 0
2.7V ≤ VDD ≤ 3.6V
IOUT ≤0.1mA
IOUT = 0
LTC1863L/LTC1867L/LTC1867LA
MIN
TYP
MAX UNITS
1.235
1.25
1.265
V
±20
ppm/°C
0.3
mV/V
3
kΩ
2.5
V
DIGITAL INPUTS AND DIGITAL OUTPUTS The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5)
LTC1863L/LTC1867L/LTC1867LA
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
VIH
High Level Input Voltage
VDD = 3.6V
l 1.9
V
VIL
Low Level Input Voltage
VDD = 2.7V
l
0.45
V
1863l7lfd
For more information www.linear.com/LTC1863L
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