Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
2
232718fb
For more information
www.linear.com/LTC2327-18
LTC2327-18
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL
V
IN+
V
IN–
V
IN+
– V
IN–
I
IN
C
IN
R
IN
CMRR
PARAMETER
Absolute Input Range (IN
+
)
Absolute Input Range (IN
–
)
Input Differential Voltage Range
Analog Input Current
Analog Input Capacitance
Analog Input Resistance
Input Common Mode Rejection Ratio
f
IN
= 250kHz
CONDITIONS
(Note 5)
(Note 5)
V
IN
= V
IN+
– V
IN–
l
l
l
l
elecTrical characTerisTics
MIN
–2.5
•
V
REFBUF
– 0.5
–0.5
–2.5
•
V
REFBUF
–7.8
TYP
MAX
2.5
•
V
REFBUF
+ 0.5
0.5
2.5
•
V
REFBUF
4.8
UNITS
V
V
V
mA
pF
kΩ
dB
5
2.083
66
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL
PARAMETER
Resolution
No Missing Codes
Transition Noise
INL
DNL
BZE
FSE
Integral Linearity Error
Differential Linearity Error
Bipolar Zero-Scale Error
Bipolar Zero-Scale Error Drift
Bipolar Full-Scale Error
(Note 7)
(Note 6)
CONDITIONS
converTer characTerisTics
The
l
denotes the specifications which apply over the full operating
MIN
l
l
TYP
MAX
UNITS
Bits
Bits
18
18
1.6
–5
–1
–30
–125
–150
±0.5
±1
±0.1
0
0.01
5
1.25
30
125
150
LSB
RMS
LSB
LSB
LSB
LSB/°C
LSB
LSB
ppm/°C
l
l
l
V
REFBUF
= 4.096V (REFBUF Overdriven)
(Notes 7, 9)
REFIN = 2.048V (Note 7)
l
l
Bipolar Full-Scale Error Drift
DynaMic accuracy
SYMBOL
SINAD
PARAMETER
The
l
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C and A
IN
= –1dBFS. (Notes 4, 8)
CONDITIONS
±6.25V Range, f
IN
= 2kHz, REFIN = 1.25V
±10.24V Range, f
IN
= 2kHz, REFIN = 2.048V
±12.5V Range, f
IN
= 2kHz, REFBUF = 5V
SNR
Signal-to-Noise Ratio
±6.25V Range, f
IN
= 2kHz, REFIN = 1.25V
±10.24V Range, f
IN
= 2kHz, REFIN = 2.048V
±12.5V Range, f
IN
= 2kHz, REFBUF = 5V
THD
Total Harmonic Distortion
±6.25V Range, f
IN
= 2kHz, REFIN = 1.25V
±10.24V Range, f
IN
= 2kHz, REFIN = 2.048V
±12.5V Range, f
IN
= 2kHz, REFBUF = 5V
SFDR
Spurious Free Dynamic Range
±6.25V Range, f
IN
= 2kHz, REFIN = 1.25V
±10.24V Range, f
IN
= 2kHz, REFIN = 2.048V
±12.5V Range, f
IN
= 2kHz, REFBUF = 5V
–3dB Input Linear Bandwidth
Aperture Delay
l
l
l
l
l
l
l
l
l
l
l
l
MIN
87.6
91
92
88
92
94
TYP
91
95
96.5
91.5
95
97
–108
–111
–106
MAX
UNITS
dB
dB
dB
dB
dB
dB
Signal-to-(Noise + Distortion) Ratio
–98
–98
–96
dB
dB
dB
dB
dB
dB
MHz
ps
232718fb
98
98
96
110
113
108
7
500
For more information
www.linear.com/LTC2327-18
3
LTC2327-18
DynaMic accuracy
SYMBOL
PARAMETER
Aperture Jitter
Transient Response
Full-Scale Step
The
l
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C and A
IN
= –1dBFS. (Notes 4, 8)
CONDITIONS
MIN
TYP
4
0.5
MAX
UNITS
ps
RMS
µs
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL
V
REFIN
PARAMETER
Internal Reference Output Voltage
V
REFIN
Temperature Coefficient
REFIN Output Impedance
V
REFIN
Line Regulation
REFIN Input Voltage Range
V
DD
= 4.75V to 5.25V
(REFIN Overdriven) (Note 5)
1.25
(Note 14)
l
inTernal reFerence characTerisTics
CONDITIONS
MIN
2.043
TYP
2.048
2
15
0.08
MAX
2.053
20
UNITS
V
ppm/°C
kΩ
mV/V
2.4
V
reFerence buFFer characTerisTics
SYMBOL
V
REFBUF
PARAMETER
Reference Buffer Output Voltage
REFBUF Input Voltage Range
REFBUF Output Impedance
I
REFBUF
REFBUF Load Current
CONDITIONS
V
REFIN
= 2.048V
(REFBUF Overdriven) (Notes 5, 9)
V
REFIN
= 0V
The
l
denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
MIN
l
l
TYP
4.096
13
MAX
4.101
5
UNITS
V
V
kΩ
mA
mA
4.091
2.5
V
REFBUF
= 5V (REFBUF Overdriven) (Notes 9, 10)
V
REFBUF
= 5V, Nap Mode (REFBUF Overdriven) (Note 9)
l
0.64
0.39
0.7
DigiTal inpuTs anD DigiTal ouTpuTs
SYMBOL
V
IH
V
IL
I
IN
C
IN
V
OH
V
OL
I
OZ
I
SOURCE
I
SINK
PARAMETER
High Level Input Voltage
Low Level Input Voltage
Digital Input Current
Digital Input Capacitance
High Level Output Voltage
Low Level Output Voltage
Hi-Z Output Leakage Current
Output Source Current
Output Sink Current
I
O
= –500µA
I
O
= 500µA
V
OUT
= 0V to OV
DD
V
OUT
= 0V
V
OUT
= OV
DD
V
IN
= 0V to OV
DD
CONDITIONS
The
l
denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
MIN
l
l
l
TYP
MAX
0.2
•
OV
DD
UNITS
V
V
μA
pF
V
0.8
•
OV
DD
–10
5
OV
DD
– 0.2
0.2
–10
–10
10
10
10
l
l
l
V
µA
mA
mA
4
232718fb
For more information
www.linear.com/LTC2327-18
LTC2327-18
The
l
denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 4)
SYMBOL
V
DD
OV
DD
I
VDD
I
OVDD
I
NAP
I
SLEEP
P
D
PARAMETER
Supply Voltage
Supply Voltage
Supply Current
Supply Current
Nap Mode Current
Sleep Mode Current
Power Dissipation
Nap Mode
Sleep Mode
500ksps Sample Rate (IN
+
= –10.24V, IN
–
= 0V)
500ksps Sample Rate (IN
+
= IN
–
= 0V)
500ksps Sample Rate (C
L
= 20pF)
Conversion Done (I
VDD
+ I
OVDD
, IN
+
= –10.24V, IN
–
= 0V)
Sleep Mode (I
VDD
+ I
OVDD
)
500ksps Sample Rate (IN
+
= –10.24V, IN
–
= 0V)
500ksps Sample Rate (IN
+
= IN
–
= 0V)
Conversion Done (I
VDD
+ I
OVDD
, IN
+
= –10.24V, IN
–
= 0V)
Sleep Mode (I
VDD
+ I
OVDD
)
CONDITIONS
l
l
l
power requireMenTs
MIN
4.75
1.71
TYP
5
11.4
7.2
0.1
8.4
60
57
36
42
0.3
MAX
5.25
5.25
14
10
225
70
50
1.1
UNITS
V
V
mA
mA
mA
mA
μA
mW
mW
mW
mW
l
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
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Embedded System
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