LTC2170IUKG-14#PBF Linear Technology, LTC2170IUKG-14#PBF Datasheet - Page 7
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LTC2170IUKG-14#PBF
Manufacturer Part Number
LTC2170IUKG-14#PBF
Description
IC ADC 14BIT SER/PAR 25M 52-QFN
Manufacturer
Linear Technology
Datasheet
1.LTC2172IUKG-14PBF.pdf
(34 pages)
Specifications of LTC2170IUKG-14#PBF
Number Of Bits
14
Sampling Rate (per Second)
25M
Data Interface
Serial, Parallel
Number Of Converters
4
Power Dissipation (max)
243mW
Voltage Supply Source
Analog and Digital
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
52-WFQFN Exposed Pad
Number Of Elements
4
Resolution
14Bit
Sample Rate
25MSPS
Input Polarity
Bipolar
Input Type
Voltage
Rated Input Volt
±0.5/±1V
Differential Input
Yes
Power Supply Requirement
Single
Single Supply Voltage (typ)
1.8V
Single Supply Voltage (min)
1.7V
Single Supply Voltage (max)
1.9V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Power Dissipation
243mW
Differential Linearity Error
±0.8LSB
Integral Nonlinearity Error
±2.75LSB
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
52
Package Type
QFN EP
Input Signal Type
Differential
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
TIMING CHARACTERISTICS
range, otherwise specifi cations are at T
SYMBOL PARAMETER
Digital Data Outputs (R
t
t
t
t
t
t
SPI Port Timing (Note 8)
t
t
t
t
t
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All voltage values are with respect to GND with GND and OGND
shorted (unless otherwise noted).
Note 3: When these pin voltages are taken below GND or above V
will be clamped by internal diodes. This product can handle input currents
of greater than 100mA below GND or above V
Note 4: When these pin voltages are taken below GND they will be
clamped by internal diodes. When these pin voltages are taken above V
they will not be clamped by internal diodes. This product can handle input
currents of greater than 100mA below GND without latchup.
Note 5: V
40MHz (LTC2171), or 25MHz (LTC2170), 2-lane output mode, differential
ENC
unless otherwise noted.
SER
FRAME
DATA
PD
R
F
SCK
S
H
DS
DH
DO
+
/ENC
DD
–
Serial Data Bit Period
FR to DCO Delay
DATA to DCO Delay
Propagation Delay
Output Rise Time
Output Fall Time
DCO Cycle-to-Cycle Jitter
Pipeline Latency
SCK Period
CS to SCK Set-Up Time
SCK to CS Set-Up Time
SDI Set-Up Time
SDI Hold Time
SCK Falling to SDO Valid
= 2V
= OV
P-P
DD
sine wave, input range = 2V
= 1.8V, f
TERM
SAMPLE
= 100Ω Differential, C
= 65MHz (LTC2172),
CONDITIONS
2-Lanes, 16-Bit Serialization
2-Lanes, 14-Bit Serialization
2-Lanes, 12-Bit Serialization
1-Lane, 16-Bit Serialization
1-Lane, 14-Bit Serialization
1-Lane, 12-Bit Serialization
(Note 8)
(Note 8)
(Note 8)
Data, DCO, FR, 20% to 80%
Data, DCO, FR, 20% to 80%
t
Write Mode
Readback Mode, C
Readback Mode
C
SER
SDO
= 1ns
= 20pF , R
A
DD
= 25°C. (Note 5)
P-P
without latchup.
with differential drive,
L
PULLUP
= 2pF to GND on Each Output)
SDO
The
= 2k
= 20pF , R
l
DD
denotes the specifi cations which apply over the full operating temperature
, they
DD
PULLUP
= 2k
Note 6: Integral nonlinearity is defi ned as the deviation of a code from a
best fi t straight line to the transfer curve. The deviation is measured from
the center of the quantization band.
Note 7: Offset error is the offset voltage measured from –0.5 LSB when
the output code fl ickers between 00 0000 0000 0000 and 11 1111 1111
1111 in 2’s complement output mode.
Note 8: Guaranteed by design, not subject to test.
Note 9: V
(LTC2171), or 25MHz (LTC2170), 2-lane output mode, ENC
ended 1.8V square wave, ENC
drive, unless otherwise noted. The supply current and power dissipation
specifi cations are totals for the entire chip, not per channel.
Note 10: Recommended operating conditions.
Note 11: The maximum sampling frequency depends on the speed grade
of the part and also which serialization mode is used. The maximum serial
data rate is 1000Mbps, so t
Note 12: Near-channel crosstalk refers to Ch. 1 to Ch.2, and Ch.3 to Ch.4.
Far-channel crosstalk refers to Ch.1 to Ch.3, Ch.1 to Ch.4, Ch.2 to Ch.3, and
Ch.2 to Ch.4.
l
l
l
l
l
l
l
l
l
l
DD
LTC2171-14/LTC2170-14
= OV
0.7n + 2 • t
0.35 • t
0.35 • t
DD
MIN
250
40
= 1.8V, f
5
5
5
5
SER
SER
SER
SER
SAMPLE
–
= 0V, input range = 2V
must be greater than or equal to 1ns.
1.1n + 2 • t
1 / (16 • f
1 / (14 • f
1 / (12 • f
1 / (8 • f
1 / (7 • f
1 / (6 • f
0.5 • t
0.5 • t
= 65MHz (LTC2172), 40MHz
0.17
0.17
TYP
60
6
SER
SER
LTC2172-14/
S
S
S
S
S
S
SER
)
)
)
)
)
)
1.5n + 2 • t
0.65 • t
0.65 • t
P-P
MAX
125
with differential
SER
SER
+
SER
= single-
21721014fa
UNITS
Cycles
ps
7
P-P
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s
s
s
s
s
s
s
s