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PDF LTC2233 Data sheet ( Hoja de datos )
| Número de pieza | LTC2233 | |
| Descripción | 10-Bit 105Msps/80Msps ADCs | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LTC2233 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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FEATURES
■ Sample Rate: 105Msps/80Msps
■ 61dB SNR up to 140MHz Input
■ 75dB SFDR up to 200MHz Input
■ 775MHz Full Power Bandwidth S/H
■ Single 3.3V Supply
■ Low Power Dissipation: 475mW/366mW
■ Selectable Input Ranges: ±0.5V or ±1V
■ No Missing Codes
■ Optional Clock Duty Cycle Stabilizer
■ Shutdown and Nap Modes
■ Data Ready Output Clock
■ Pin Compatible Family
135Msps: LTC2224 (12-Bit), LTC2234 (10-Bit)
105Msps: LTC2222 (12-Bit), LTC2232 (10-Bit)
80Msps: LTC2223 (12-Bit), LTC2233 (10-Bit)
■ 48-Pin 7mm x 7mUm QFN Package
APPLICATIO S
■ Wireless and Wired Broadband Communication
■ Cable Head-End Systems
■ Power Amplifier Linearization
■ Communications Test Equipment
TYPICAL APPLICATIO
REFH
REFL
FLEXIBLE
REFERENCE
3.3V
VDD
ANALOG
INPUT
+
INPUT
S/H
–
10-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
CLOCK/DUTY
CYCLE
CONTROL
ENCODE INPUT
LTC223ww2w./DaLtaTSCheet24U2.co3m3
10-Bit,105Msps/
80Msps ADCs
DESCRIPTIO
The LTC®2232 and LTC2233 are 105Msps/80Msps, sam-
pling 10-bit A/D converters designed for digitizing high
frequency, wide dynamic range signals. The LTC2232/
LTC2233 are perfect for demanding communications
applications with AC performance that includes 61dB SNR
and 75dB spurious free dynamic range for signals
up to 200MHz. Ultralow jitter of 0.15psRMS allows
undersampling of IF frequencies with excellent noise
performance.
DC specs include ±0.15LSB INL (typ), ±0.1LSB DNL (typ)
and ±0.8LSB INL, ±0.6LSB DNL over temperature. The
transition noise is a low 0.12LSBRMS.
A separate output power supply allows the outputs to drive
0.5V to 3.6V logic.
The ENC+ and ENC– inputs may be driven differentially or
single ended with a sine wave, PECL, LVDS, TTL, or CMOS
inputs. An optional clock duty cycle stabilizer allows high
performance at full speed for a wide range of clock duty
cycles.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
OUTPUT
DRIVERS
0.5V
TO 3.6V
OVDD
D9
•
•
•
D0
OGND
22323 TA01
SFDR vs Input Frequency
90
85
4th OR HIGHER
80
75
70
2nd OR 3rd
65
60
55
50
0
100 200 300 400 500 600
INPUT FREQUENCY (MHz) 22323 TA01b
22323fa
1
1 page  
LTC223ww2w./DaLtaTSCheet24U2.co3m3
POWER REQUIRE E TS The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 9)
SYMBOL
PARAMETER
CONDITIONS
LTC2232
MIN TYP MAX
LTC2233
MIN TYP MAX
UNITS
VDD Analog Supply Voltage
● 3.1 3.3 3.5
3.1 3.3 3.5
V
OVDD
Output Supply Voltage
● 0.5 3.3 3.6
0.5 3.3 3.6
V
IVDD Analog Supply Current
● 144 162
111 123
mA
PDISS
Power Dissipation
● 475 535
366 406
mW
PSHDN
Shutdown Power
SHDN = H, OE = H, No CLK
2
2 mW
PNAP
Nap Mode Power
SHDN = H, OE = L, No CLK
35 35 mW
WU
TI I G CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
LTC2232
MIN TYP MAX
LTC2233
MIN TYP MAX
UNITS
fS Sampling Frequency
●1
105 1
80 MHz
tL
ENC Low Time (Note 8)
Duty Cycle Stabilizer Off
● 4.5 4.76 500
5.9 6.25 500
ns
Duty Cycle Stabilizer On
● 3 4.76 500
3 6.25 500
ns
tH
ENC High Time (Note 8)
Duty Cycle Stabilizer Off
● 4.5 4.76 500
5.9 6.25 500
ns
Duty Cycle Stabilizer On
● 3 4.76 500
3 6.25 500
ns
tAP Sample-and-Hold Aperture Delay
tD ENC to DATA Delay
tC ENC to CLOCKOUT Delay
DATA to CLOCKOUT Skew
tOE Output Enable Delay
Pipeline Latency
(Note 7)
(Note 7)
(tC - tD) (Note 7)
(Note 7)
● 1.3
● 1.3
● – 0.6
●
0
2.1
2.1
0
5
5
4
4
0.6
10
0
1.3 2.1
1.3 2.1
–0.6 0
5
5
4
4
0.6
10
ns
ns
ns
ns
ns
Cycles
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 ground with GND and OGND
wired together (unless otherwise noted).
Note 3: When these pin voltages are taken below GND or above VDD, they will
be clamped by internal diodes. This product can handle input currents of
greater than 100mA below GND or above VDD without latchup.
Note 4: VDD = 3.3V, fSAMPLE = 105MHz (LTC2232) or 80MHz (LTC2233),
differential ENC+/ENC– = 2VP-P sine wave, input range = 2VP-P with differential
drive, unless otherwise noted.
Note 5: Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve. The
deviation is measured from the center of the quantization band.
Note 6: Offset error is the offset voltage measured from –0.5 LSB when the
output code flickers between 00 0000 0000 and 11 1111 1111 in 2’s
complement output mode.
Note 7: Guaranteed by design, not subject to test.
Note 8: Recommended operating conditions.
Note 9: VDD = 3.3V, fSAMPLE = 105MHz (LTC2232) or 80MHz (LTC2233),
differential ENC+/ENC– = 2VP-P sine wave, input range = 1VP-P with differential
drive.
22323fa
5
5 Page 
TYPICAL PERFOR A CE CHARACTERISTICS
LTC223ww2w./DaLtaTSCheet24U2.co3m3
LTC2233: 8192 Point FFT,
fIN = 70MHz, –1dB, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
2233 G19
LTC2233: 8192 Point FFT,
fIN = 250MHz, –1dB, 2V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40
FREQUENCY (MHz)
2233 G22
LTC2233: 8192 Point 2-Tone FFT,
fIN = 68MHz and 70MHz, –7dB
Each, 2V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
2233 G25
LTC2233: 8192 Point FFT,
fIN = 140MHz, –1dB, 2V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
2233 G20
LTC2233: 8192 Point FFT,
fIN = 140MHz, –1dB, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
2233 G21
LTC2233: 8192 Point FFT,
fIN = 250MHz, –1dB, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40
FREQUENCY (MHz)
2233 G23
LTC2233: 8192 Point 2-Tone FFT,
fIN = 138MHz and 140MHz, –7dB
Each, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
2233 G26
LTC2233: 8192 Point FFT,
fIN = 500MHz, –6dB, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40
FREQUENCY (MHz)
2233 G24
LTC2233: Shorted Input Noise
Histogram
140000
120000
131071
100000
80000
60000
40000
20000
0
0
510
511
CODE
1
512
2233 G27
22323fa
11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet LTC2233.PDF ] | |
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