Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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.
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–
V
CM
I
IN
C
IN
CMRR
I
REFOUT
PARAMETER
Absolute Input Range (A
IN1+
, A
IN2+
)
Absolute Input Range (A
IN1–
, A
IN2–
)
Input Differential Voltage Range
Common Mode Input Range
Analog Input DC Leakage Current
Analog Input Capacitance
Input Common Mode Rejection Ratio
External Reference Current
f
IN
= 2.2MHz
REFINT = 0V, REFOUT = 4.096V
CONDITIONS
(Note 5)
(Note 5)
V
IN
= V
IN+
– V
IN–
V
IN
= (V
IN+
+ V
IN–
)/2
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
MIN
0
0
–REFOUT1,2
0
–1
OGND
TYP
MAX
V
DD
V
DD
REFOUT1,2
V
DD
1
UNITS
V
V
V
V
µA
pF
dB
µA
232112fb
10
85
310
2
For more information
www.linear.com/LTC2321-12
LTC2321-12
temperature range, otherwise specifications are at T
A
= 25°C (Notes 4, 16).
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
Bipolar Full-Scale Error Drift
V
REFOUT1,2
= 4.096V (REFINT Grounded) (Note 7)
V
REFOUT1,2
= 4.096V (REFINT Grounded)
l
CONVERTER CHARACTERISTICS
The
l
denotes the specifications which apply over the full operating
CONDITIONS
l
l
MIN
12
12
TYP
MAX
UNITS
Bits
Bits
0.4
(Note 6)
(Note 7)
l
l
l
LSB
RMS
1
0.99
1.5
23
LSB
LSB
LSB
LSB/°C
LSB
ppm/°C
–1
–0.99
–1.5
–23
±0.5
±0.4
0
0.0015
±2
15
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).
SYMBOL PARAMETER
SINAD
SNR
THD
SFDR
CONDITIONS
l
DYNAMIC ACCURACY
MIN
69.5
70
TYP
72.8
73
73
73.5
–85
–84
MAX
UNITS
dB
dB
dB
dB
Signal-to-(Noise + Distortion) Ratio f
IN
= 500kHz, V
REFOUT1,2
= 4.096V, Internal Reference
f
IN
= 500kHz, V
REFOUT1,2
= 5V, External Reference
Signal-to-Noise Ratio
Total Harmonic Distortion
Spurious Free Dynamic Range
–3dB Input Linear Bandwidth
Aperture Delay
Aperture Delay Matching
Aperture Jitter
Transient Response
Full-Scale Step
f
IN
= 500kHz, V
REFOUT1,2
= 4.096V, Internal Reference
f
IN
= 500kHz, V
REFOUT1,2
= 5V, External Reference
f
IN
= 500kHz, V
REFOUT1,2
= 4.096V, Internal Reference
f
IN
= 500kHz, V
REFOUT1,2
= 5V, External Reference
f
IN
= 500kHz, V
REFOUT1,2
= 4.096V, Internal Reference
f
IN
= 500kHz, V
REFOUT1,2
= 5V, External Reference
l
l
–80
dB
dB
dB
dB
MHz
ps
ps
ps
RMS
ns
l
78
88
88
10
500
500
1
3
232112fb
For more information
www.linear.com/LTC2321-12
3
LTC2321-12
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
REFOUT1,2
PARAMETER
Internal Reference Output Voltage
V
REFOUT
Temperature Coefficient
REFOUT1,2 Output Impedance
V
REFOUT1,2
Line Regulation
V
DD
= 4.75V to 5.25V
CONDITIONS
4.75V < V
DD
< 5.25V
3.13V < V
DD
< 3.47V
(Note 14)
l
l
l
INTERNAL REFERENCE CHARACTERISTICS
MIN
4.088
2.044
TYP
4.096
2.048
3
0.25
0.3
MAX
4.106
2.053
20
UNITS
V
ppm/°C
Ω
mV/V
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
IH
V
IL
I
IN
C
IN
V
OH
V
OL
I
OZ
I
SOURCE
I
SINK
V
ID
V
IS
V
OD
V
OS
V
OD_LP
V
OS_LP
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
LVDS Differential Input Voltage
LVDS Common Mode Input Voltage
LVDS Differential Output Voltage
LVDS Common Mode Output Voltage
Low Power LVDS Differential Output
Voltage
Low Power LVDS Common Mode
Output Voltage
I
O
= -500µA
I
O
= 500µA
V
OUT
= 0V to OV
DD
V
OUT
= 0V
V
OUT
= OV
DD
100Ω Differential Termination, OV
DD
= 2.5V
100Ω Differential Termination, OV
DD
= 2.5V
100Ω Differential Load, LVDS Mode,
OV
DD
= 2.5V
100Ω Differential Load, LVDS Mode,
OV
DD
= 2.5V
100Ω Differential Load, Low Power,
LVDS Mode ,OV
DD
= 2.5V
100Ω Differential Load, Low Power,
LVDS Mode ,OV
DD
= 2.5V
l
l
l
l
l
l
l
l
l
DIGITAL INPUTS AND DIGITAL OUTPUTS
CONDITIONS
MIN
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
240
1
100
0.85
75
0.9
150
1.2
100
1.2
600
1.45
300
1.4
250
1.4
10
10
V
IN
= 0V to OV
DD
l
V
µA
mA
mA
mV
V
mV
V
mV
V
232112fb
4
For more information
www.linear.com/LTC2321-12
LTC2321-12
POWER REQUIREMENTS
SYMBOL PARAMETER
V
DD
OV
DD
I
VDD
I
OVDD
I
NAP
I
SLEEP
P
D_3.3V
Supply Voltage
Supply Voltage
Supply Current
Supply Current
Nap Mode Current
Sleep Mode Current
Power Dissipation
Nap Mode
Sleep Mode
P
D_5V
Power Dissipation
Nap Mode
Sleep Mode
2Msps Sample Rate (IN
+
= IN
–
= 0V)
2Msps Sample Rate (C
L
= 5pF)
2Msps Sample Rate (R
L
= 100Ω)
Conversion Done (I
VDD
)
Sleep Mode (I
VDD
+ I
OVDD
)
Sleep Mode (I
VDD
+ I
OVDD
)
CMOS Mode
LVDS Mode
CMOS Mode
LVDS Mode
CONDITIONS
5V Operation
3.3V Operation
l
l
l
l
l
l
l
l
l
The
l
denotes the specifications which apply over the full operating temperature
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