LTC2215IUP#PBF Linear Technology, LTC2215IUP#PBF Datasheet

IC ADC 16BIT 65MSPS 64-QFN

LTC2215IUP#PBF

Manufacturer Part Number
LTC2215IUP#PBF
Description
IC ADC 16BIT 65MSPS 64-QFN
Manufacturer
Linear Technology
Datasheet

Specifications of LTC2215IUP#PBF

Number Of Bits
16
Sampling Rate (per Second)
65M
Data Interface
Parallel
Number Of Converters
1
Power Dissipation (max)
1.25W
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-WFQFN, Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC2215IUP#PBF/CUP
Manufacturer:
LT
Quantity:
1 000
Company:
Part Number:
LTC2215IUP#PBFLTC2215IUP#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
APPLICATIONS
ANALOG
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
TYPICAL APPLICATION
INPUT
Sample Rate: 80Msps/65Msps
81.5dBFS Noise Floor
100dB SFDR
SFDR >95dB at 70MHz
85fs
2.75V
400MHz Full Power Bandwidth S/H
Optional Internal Dither
Optional Data Output Randomizer
LVDS or CMOS Outputs
Single 3.3V Supply
Power Dissipation: 970mW/700mW
Clock Duty Cycle Stabilizer
Pin-Compatible with LTC2208, LTC2217
64-Pin (9mm × 9mm) QFN Package
Telecommunications
Receivers
Cellular Base Stations
Spectrum Analysis
Imaging Systems
ATE
V
2.2μF
AIN
AIN
CM
+
RMS
P-P
COMMON MODE
BIAS VOLTAGE
+
CLOCK/DUTY
ENC
CONTROL
AMP
Jitter
S/H
CYCLE
1.575V
Input Range
+
ENC
INTERNAL ADC
GENERATOR
REFERENCE
PIPELINED
ADC CORE
16-BIT
3.3V
SENSE
SHDN
SHIFT REGISTER
CORRECTION
LOGIC AND
ADC CONTROL INPUTS
DITH
MODE
LVDS
DRIVERS
OUTPUT
RAND
OV
OGND
GND
V
DD
DD
DESCRIPTION
All other trademarks are the property of their respective owners.
The LTC
bit A/D converters designed for digitizing high frequency,
wide dynamic range signals with input frequencies up to
400MHz. The input range of the ADC is fi xed at 2.75V
The LTC2216/LTC2215 are perfect for demanding com-
munications applications, with AC performance that
includes 81.5dBFS noise fl oor and 100dB spurious free
dynamic range (SFDR). Ultra low jitter of 85fs
undersampling of high input frequencies while maintaining
excellent noise performance. Maximum DC specs include
±3.5LSB INL, ±1LSB DNL (no missing codes).
The digital output can be either differential LVDS or
single-ended CMOS. There are two format options for the
CMOS outputs: a single bus running at the full data rate or
demultiplexed buses running at half data rate. A separate
output power supply allows the CMOS output swing to
range from 0.5V to 3.6V.
The ENC
or single-ended with a sine wave, PECL, LVDS, TTL or
CMOS inputs. An optional clock duty cycle stabilizer al-
lows high performance at full speed with a wide range of
clock duty cycles.
D15
OF
CLKOUT
D0
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
1μF
1μF
0.5V TO 3.6V
®
CMOS
OR
LVDS
2216/LTC2215 are 80Msps/65Msps sampling 16-
+
1μF
16-Bit, 80Msps/65Msps
and ENC
1μF
22165 TA01
3.3V
LTC2216/LTC2215
inputs may be driven differentially
Low Noise ADC
–100
–110
–120
–130
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
LTC2216: 64k Point FFT,
f
IN
= 4.9MHz, –1dBFS
10
FREQUENCY (MHz)
20
RMS
30
allows
22165 TA01b
P-P
22165f
1
40
.

Related parts for LTC2215IUP#PBF

LTC2215IUP#PBF Summary of contents

Page 1

... PECL, LVDS, TTL or CMOS inputs. An optional clock duty cycle stabilizer al- lows high performance at full speed with a wide range of clock duty cycles. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners 0.5V TO 3.6V 1μ ...

Page 2

... Operating Temperature Range LTC2215C/LTC2216C ............................... 0°C to 70°C LTC2215I/LTC2216I ..............................–40°C to 85°C Storage Temperature Range ..................–65°C to 150°C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC2215CUP#PBF LTC2215CUP#TRPBF LTC2215IUP#PBF LTC2215IUP#TRPBF LTC2216CUP#PBF LTC2216CUP#TRPBF LTC2216IUP#PBF LTC2216IUP#TRPBF LEAD BASED FINISH TAPE AND REEL LTC2215CUP ...

Page 3

CONVERTER CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER Integral Linearity Error Differential Linearity Error Offset Error Offset Drift Gain Error Full-Scale Drift Transition Noise ANALOG INPUT l The denotes the specifi cations which apply over the full ...

Page 4

LTC2216/LTC2215 DYNAMIC ACCURACY otherwise specifi cations are 25° SYMBOL PARAMETER CONDITIONS SNR Signal-to-Noise Ratio 5MHz Input 15MHz Input, T 15MHz Input 30MHz Input, T 70MHz Input, T 70MHz Input 140MHz Input SFDR Spurious Free 5MHz ...

Page 5

COMMON MODE BIAS CHARACTERISTICS full operating temperature range, otherwise specifi cations are at T PARAMETER V Output Voltage CM V Output Tempco CM V Line Regulation CM V Output Resistance CM DIGITAL INPUTS AND DIGITAL OUTPUTS full operating temperature range, ...

Page 6

LTC2216/LTC2215 POWER REQUIREMENTS range, otherwise specifi cations are SYMBOL PARAMETER CONDITIONS V Analog Supply Voltage (Note Shutdown Power SHDN = V SHDN Standard LVDS Output Mode OV Output Supply Voltage (Note ...

Page 7

ELECTRICAL CHARACTERISTICS 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 ...

Page 8

LTC2216/LTC2215 TIMING DIAGRAMS ANALOG INPUT – ENC + ENC DA0-DA15, OFA CLKOUTA CLKOUTB DB0-DB15, OFB ANALOG INPUT – ENC + ENC DA0-DA15, OFA DB0-DB15, OFB CLKOUTA CLKOUTB 8 Full-Rate CMOS Output Mode Timing All Outputs are Single-Ended and Have CMOS ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS LTC2216 Integral Nonlinearity (INL) vs Output Code, Dither “Off“ 2.0 1.5 1.0 0.5 0.0 –0.5 –1.0 –1.5 –2.0 0 16384 32768 49152 65536 OUTPUT CODE 22165 G01 LTC2216 AC Grounded Input Histogram 14000 12000 10000 8000 6000 ...

Page 10

LTC2216/LTC2215 TYPICAL PERFORMANCE CHARACTERISTICS LTC2216 64k Point 2-Tone FFT 14.25MHz and 21.5MHz, IN –25dBFS, Dither “On” 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 FREQUENCY (MHz) 22165 ...

Page 11

TYPICAL PERFORMANCE CHARACTERISTICS LTC2216 SFDR vs Input Level 70.5MHz, Dither “On” IN 140 130 120 110 100 –80 –70 –60 –50 –40 –30 –20 –10 INPUT LEVEL (dBFS) 22165 G19 LTC2216 ...

Page 12

LTC2216/LTC2215 TYPICAL PERFORMANCE CHARACTERISTICS LTC2216 SFDR (HD2 and HD3) vs Input Frequency 110 HD2 105 100 95 HD3 SFDR 100 150 200 250 INPUT FREQUENCY (MHz) 22165 G28 LTC2216 SNR and SFDR vs ...

Page 13

TYPICAL PERFORMANCE CHARACTERISTICS LTC2215 Integral Nonlinearity (INL) vs Output Code, Dither “Off” 2.0 1.5 1.0 0.5 0.0 –0.5 –1.0 –1.5 –2.0 0 16384 32768 49152 65536 OUTPUT CODE 22165 G42 LTC2215 AC Grounded Input Histogram 14000 12000 10000 8000 6000 ...

Page 14

LTC2216/LTC2215 TYPICAL PERFORMANCE CHARACTERISTICS LTC2215 64k Point 2–Tone FFT 14.25MHz and 21.5MHz, IN –25dBFS, Dither “On” 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 FREQUENCY (MHz) 22165 G51 ...

Page 15

TYPICAL PERFORMANCE CHARACTERISTICS LTC2215 SFDR vs Input Level 70.5MHz, Dither “On” IN 140 130 120 110 100 INPUT LEVEL (dBFS) 22165 G60 LTC2215 64k Point 2–Tone FFT 67.2MHz and ...

Page 16

LTC2216/LTC2215 TYPICAL PERFORMANCE CHARACTERISTICS LTC2215 SFDR (HD2 and HD3) vs Input Frequency 110 105 HD3 100 95 HD2 90 SFDR 100 150 200 INPUT FREQUENCY (MHz) 22165 G69 LTC2215 SNR and SFDR vs Supply ...

Page 17

TYPICAL PERFORMANCE CHARACTERISTICS LTC2216/LTC2215 Normalized Full-Scale vs Temperature, Internal Reference, 5 Units 1.005 1.004 1.003 1.002 1.001 1 0.999 0.998 0.997 0.996 0.995 –40 – TEMPERATURE (°C) 22165 G76 LTC2216/LTC2215 Input Offset Voltage vs Temperature, ...

Page 18

LTC2216/LTC2215 PIN FUNCTIONS For CMOS Mode. Full Rate or Demultiplexed SENSE (Pin 1): Reference Mode Select and External Refer- ence Input. Tie SENSE select the internal 2.5V DD bandgap reference. An external reference of 2.5V or 1.25V ...

Page 19

PIN FUNCTIONS For LVDS Mode. STANDARD or LOW POWER SENSE (Pin 1): Reference Mode Select and External Refer- ence Input. Tie SENSE select the internal 2.5V DD bandgap reference. An external reference of 2.5V or 1.25V may ...

Page 20

LTC2216/LTC2215 BLOCK DIAGRAM + A IN INPUT FIRST PIPELINED S/H ADC STAGE – DITHER SIGNAL GENERATOR RANGE SELECT SENSE PGA V CM BUFFER VOLTAGE REFERENCE 20 SECOND PIPELINED THIRD PIPELINED FOURTH PIPELINED ADC STAGE ADC STAGE ADC CLOCKS ...

Page 21

OPERATION DYNAMIC PERFORMANCE Signal-to-Noise Plus Distortion Ratio The signal-to-noise plus distortion ratio [S/(N+D)] is the ratio between the RMS amplitude of the fundamental input frequency and the RMS amplitude of all other frequency components at the ADC output. The output ...

Page 22

LTC2216/LTC2215 APPLICATIONS INFORMATION CONVERTER OPERATION The LTC2216/LTC2215 are CMOS pipelined multistep convert- ers with a low noise front-end. As shown in Figure 1, these converters have fi ve pipelined ADC stages; a sampled analog input will result in a digitized ...

Page 23

APPLICATIONS INFORMATION the sampling capacitors to acquire a new sample. Since the sampling capacitors still hold the previous sample, a charging glitch proportional to the change in voltage between samples will be seen at this time. If the change between ...

Page 24

LTC2216/LTC2215 APPLICATIONS INFORMATION high frequency distortion. A disadvantage of using a transformer is the loss of low frequency response. Most small RF transformers have poor performance at frequen- cies below 1MHz. Center-tapped transformers provide a convenient means of DC biasing ...

Page 25

APPLICATIONS INFORMATION The internal programmable gain amplifi er provides the internal reference voltage for the ADC. This amplifi er has very stringent settling requirements and therefore is not accessible for external use. The SENSE pin can be driven ±5% around ...

Page 26

LTC2216/LTC2215 APPLICATIONS INFORMATION ENC V = 1.6V THRESHOLD 1.6V ENC 0.1μF Figure 10. Single-Ended ENC Drive, Not Recommended for Low Jitter 3.3V 3.3V MC100LVELT22 130Ω 130Ω 83Ω 83Ω Figure 11. ENC Drive Using a CMOS to PECL ...

Page 27

APPLICATIONS INFORMATION ALVCH16373 CMOS latch. For full speed operation the capacitive load should be kept under 10pF . A resistor in series with the output may be used, but is not required since the ADC has a series resistor of ...

Page 28

LTC2216/LTC2215 APPLICATIONS INFORMATION Overfl ow Bit An overfl ow output bit (OF) indicates when the converter is over-ranged or under-ranged. In CMOS mode, a logic high on the OFA pin indicates an overfl underfl the A ...

Page 29

APPLICATIONS INFORMATION PC BOARD FPGA CLKOUT OF D15 D0 D14 D0 LTC2216/ LTC2215 Figure 15. Descrambling a Scrambled Digital Output LTC2216/LTC2215 + AIN ANALOG S/H INPUT AMP – AIN CLOCK/DUTY CYCLE CONTROL + ENC Figure ...

Page 30

LTC2216/LTC2215 APPLICATIONS INFORMATION Grounding and Bypassing The LTC2216/LTC2215 requires a printed circuit board with a clean unbroken ground plane; a multilayer board with an internal ground plane is recommended. The pinout of the LTC2216/LTC2215 has been optimized for a fl ...

Page 31

APPLICATIONS INFORMATION Layer 1 Component Side LTC2216/LTC2215 Layer 2 GND Plane 22165f 31 ...

Page 32

LTC2216/LTC2215 APPLICATIONS INFORMATION Layer 3 GND 32 Layer 4 GND 22165f ...

Page 33

APPLICATIONS INFORMATION Layer 5 GND LTC2216/LTC2215 Layer 6 Bottom Side 22165f 33 ...

Page 34

LTC2216/LTC2215 APPLICATIONS INFORMATION VC5 48 VC4 47 VC3 26 VC2 25 VC1 12 OVDD49 49 OGND50 50 D12– 51 D12+ 52 D13– 53 D13+ 54 D14– 55 D14+ 56 D15– 57 D15+ 58 OF– 59 OF+ 60 LVDS 61 MODE ...

Page 35

... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE 6. DRAWING NOT TO SCALE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. UP Package 64-Lead Plastic QFN (9mm × ...

Page 36

... SNR, 9mm × 9mm QFN Package 4.5V to 5.25V Supply, 25dBm IIP3 at 900MHz 12.5dB, 50Ω Single-Ended RF and LO Ports High IIP3: 23.5dBm at 1.9GHz, Conversion Gain: 2.3dB at 1.9GHz 12.5dB High IIP3: 23.5dBm at 3.5GHz, Conversion Gain: 1.7dB at 3.5GHz www.linear.com ● 22165f LT 0208 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 ...

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