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Linear Technology Electronic Components Datasheet

LTC2289 Datasheet

80Msps Low Noise 3V ADC

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LTC2289 pdf
FEATURES
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Integrated Dual 10-Bit ADCs
Sample Rate: 80Msps
Single 3V Supply (2.7V to 3.4V)
Low Power: 422mW
61.6dB SNR at 70MHz Input
85dB SFDR at 70MHz Input
110dB Channel Isolation at 100MHz
Multiplexed or Separate Data Bus
Flexible Input: 1VP-P to 2VP-P Range
575MHz Full Power Bandwidth S/H
Clock Duty Cycle Stabilizer
Shutdown and Nap Modes
Pin Compatible Family
105Msps: LTC2282 (12-Bit), LTC2280 (10-Bit)
80Msps: LTC2294 (12-Bit), LTC2289 (10-Bit)
65Msps: LTC2293 (12-Bit), LTC2288 (10-Bit)
40Msps: LTC2292 (12-Bit), LTC2287 (10-Bit)
25Msps: LTC2291 (12-Bit), LTC2286 (10-Bit)
64-Pin (9mm × 9mm) QFN Package
U
APPLICATIO S
Wireless and Wired Broadband Communication
Imaging Systems
Spectral Analysis
Portable Instrumentation
LTC2289
Dual 10-Bit, 80Msps
Low Noise 3V ADC
DESCRIPTIO
The LTC®2289 is a 10-bit 80Msps, low noise 3V dual A/D
converter designed for digitizing high frequency, wide
dynamic range signals. The LTC2289 is perfect for
demanding imaging and communications applications
with AC performance that includes 61.6dB SNR and 85dB
SFDR for signals well beyond the Nyquist frequency.
DC specs include ±0.1LSB INL (typ), ±0.1LSB DNL (typ)
and ±0.6LSB INL, ±0.5LSB DNL over temperature. The
transition noise is a low 0.08LSBRMS.
A single 3V supply allows low power operation. A separate
output supply allows the outputs to drive 0.5V to 3.6V
logic. An optional multiplexer allows both channels to
share a digital output bus.
A single-ended CLK input controls converter operation. An
optional clock duty cycle stabilizer allows high perfor-
mance 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.
TYPICAL APPLICATIO
ANALOG
INPUT A
+
INPUT
S/H
CLK A
CLK B
CLOCK/DUTY CYCLE
CONTROL
CLOCK/DUTY CYCLE
CONTROL
ANALOG
INPUT B
+
INPUT
S/H
10-BIT
PIPELINED
ADC CORE
10-BIT
PIPELINED
ADC CORE
OUTPUT
DRIVERS
OVDD
D9A
•••
D0A
OGND
MUX
OUTPUT
DRIVERS
OVDD
D9B
•••
D0B
OGND
2289 TA01
SNR vs Input Frequency,
–1dB, 2V Range, 80Msps
65
64
63
62
61
60
59
58
57
56
55
0
50 100 150
INPUT FREQUENCY (MHz)
200
2289 TA02
2289fa
1


Linear Technology Electronic Components Datasheet

LTC2289 Datasheet

80Msps Low Noise 3V ADC

No Preview Available !

LTC2289 pdf
LTC2289
ABSOLUTE AXI U RATI GS
OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) ................................................. 4V
Digital Output Ground Voltage (OGND) ....... –0.3V to 1V
wwwA.dnaatalsohgeeItn4pu.ucot mVoltage (Note 3) ..... –0.3V to (VDD + 0.3V)
Digital Input Voltage .................... –0.3V to (VDD + 0.3V)
Digital Output Voltage ................ –0.3V to (OVDD + 0.3V)
Power Dissipation ............................................ 1500mW
Operating Temperature Range
LTC2289C ............................................... 0°C to 70°C
LTC2289I .............................................–40°C to 85°C
Storage Temperature Range ..................–65°C to 125°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
AINA+ 1
AINA– 2
REFHA 3
48 DA3
47 DA2
46 DA1
REFHA 4
45 DA0
REFLA 5
44 NC
REFLA 6
43 NC
VDD 7
42 NC
CLKA 8 65 41 NC
CLKB 9
40 OFB
VDD 10
REFLB 11
39 DB9
38 DB8
REFLB 12
37 DB7
REFHB 13
36 DB6
REFHB 14
AINB– 15
AINB+ 16
35 DB5
34 DB4
33 DB3
UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
TJMAX = 125°C, θJA = 20°C/W
EXPOSED PAD (PIN 65) IS GND AND MUST BE SOLDERED TO PCB
ORDER PART
NUMBER
QFN PART*
MARKING
LTC2289CUP
LTC2289IUP
LTC2289UP
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grade is identified by a label on the shipping container.
CO VERTER CHARACTERISTICS The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
PARAMETER
Resolution
(No Missing Codes)
Integral Linearity Error
Differential
Linearity Error
Offset Error
Gain Error
Offset Drift
Full-Scale Drift
Gain Matching
Offset Matching
Transition Noise
CONDITIONS
Differential Analog Input (Note 5)
Differential Analog Input
(Note 6)
External Reference
Internal Reference
External Reference
External Reference
SENSE = 1V
MIN TYP MAX
10
UNITS
Bits
–0.6 ±0.1
–0.5 ±0.1
0.6
0.5
LSB
LSB
–12 ±2
–2.5 ±0.5
±10
±30
±5
±0.3
±2
0.08
12 mV
2.5 %FS
µV/°C
ppm/°C
ppm/°C
%FS
mV
LSBRMS
2289fa
2


Part Number LTC2289
Description 80Msps Low Noise 3V ADC
Maker Linear Technology
Total Page 24 Pages
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LTC2289 pdf
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