LTC2206IUK-14#PBF Linear Technology, LTC2206IUK-14#PBF Datasheet

IC ADC 14BIT 80MSPS 48-QFN

LTC2206IUK-14#PBF

Manufacturer Part Number
LTC2206IUK-14#PBF
Description
IC ADC 14BIT 80MSPS 48-QFN
Manufacturer
Linear Technology
Datasheet

Specifications of LTC2206IUK-14#PBF

Number Of Bits
14
Sampling Rate (per Second)
80M
Data Interface
Parallel
Number Of Converters
1
Power Dissipation (max)
875mW
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-WFQFN, Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC2206IUK-14#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LTC2206IUK-14#PBF/CUK
Manufacturer:
LT
Quantity:
639
Company:
Part Number:
LTC2206IUK-14#PBFLTC2206IUK-14#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
APPLICATIO S
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
TYPICAL APPLICATIO
ANALOG
INPUT
Sample Rate: 105Msps/80Msps
77.3dBFS Noise Floor
98dB SFDR
SFDR >82dB at 250MHz (1.5V
PGA Front End (2.25V
700MHz Full Power Bandwidth S/H
Optional Internal Dither
Optional Data Output Randomizer
Single 3.3V Supply
Power Dissipation: 947mW/762mW
Optional Clock Duty Cycle Stabilizer
Out-of-Range Indicator
Pin-Compatible Family
48-Pin 7mm × 7mm QFN Package
Telecommunications
Receivers
Cellular Base Stations
Spectrum Analysis
Imaging Systems
ATE
V
2.2μF
AIN
AIN
CM
105Msps: LTC2207 (16-Bit), LTC2207-14 (14-Bit)
80Msps: LTC2206 (16-Bit), LTC2206-14 (14-Bit)
65Msps: LTC2205 (16-Bit), LTC2205-14 (14-Bit)
40Msps: LTC2204 (16-Bit)
25Msps: LTC2203 (16-Bit) Single-Ended Clock
10Msps: LTC2202 (16-Bit) Single-Ended Clock
+
COMMON MODE
BIAS VOLTAGE
+
CLOCK/DUTY
ENC
CONTROL
AMP
S/H
CYCLE
1.25V
+
ENC
U
INTERNAL ADC
GENERATOR
REFERENCE
PIPELINED
ADC CORE
14-BIT
P-P
3.3V
SENSE
PGA
or 1.5V
SHDN
P-P
U
ADC CONTROL INPUTS
SHIFT REGISTER
CORRECTION
LOGIC AND
DITH
P-P
Input Range)
Input Range)
MODE
OE
DRIVERS
OUTPUT
RAND
OV
OGND
GND
V
DD
DD
D13
OF
CLKOUT
CLKOUT
D0
DESCRIPTIO
The LTC
sampling 14-bit A/D converters designed for digitizing
high frequency, wide dynamic range signals up to input
frequencies of 700MHz. The input range of the ADC can
be optimized with the PGA front end.
The LTC2207-14/LTC2206-14 are perfect for demanding
communications applications, with AC performance that
includes 77.3dB SNR and 98dB spurious free dynamic
range (SFDR). Ultralow jitter of 80fs
sampling of high input frequencies with excellent noise
performance. Maximum DC specs include ±1.5LSB INL,
±1LSB DNL (no missing codes) over temperature.
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.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
0.1μF
0.1μF
0.5V TO 3.6V
+
0.1μF
LTC2207-14/LTC2206-14
14-Bit, 105Msps/80Msps
2207614 TA01
®
+
2207-14/LTC2206-14 are 105Msps/80Msps,
and ENC
0.1μF
3.3V
U
inputs may be driven differentially
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
LTC2207-14: 32K Point FFT,
f
PGA = 0, 105Msps
0
IN
= 14.86MHz, –1dBFS,
10
FREQUENCY (MHz)
20
RMS
30
allows under-
ADCs
40
2207614 TA01b
220714614fc
50
1

Related parts for LTC2206IUK-14#PBF

LTC2206IUK-14#PBF Summary of contents

Page 1

... CMOS inputs. An optional clock duty cycle stabilizer al- lows high performance at full speed with a wide range of clock duty cycles. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners ...

Page 2

... LTC2206CUK-14#PBF LTC2206CUK-14#TRPBF LTC2206UK-14 LTC2207IUK-14#PBF LTC2207IUK-14#TRPBF LTC2207UK-14 LTC2206IUK-14#PBF LTC2206IUK-14#TRPBF LTC2206UK-14 Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...

Page 3

ANALOG INPUT The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are 25°C. (Note 4) A SYMBOL PARAMETER V Analog Input Range ( Analog Input ...

Page 4

LTC2207-14/LTC2206-14 DYNAMIC ACCURACY otherwise specifi cations are 25° SYMBOL PARAMETER CONDITIONS SFDR Spurious Free 5MHz Input (2.25V Range, PGA = 0) Dynamic Range 5MHz Input (1.5V Range, PGA = Harmonic 15MHz Input ...

Page 5

COMMON MODE BIAS CHARACTERISTICS the 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 ...

Page 6

LTC2207-14/LTC2206-14 POWER REQUIREMENTS range, otherwise specifi cations are SYMBOL PARAMETER CONDITIONS V Analog Supply Voltage DD P Shutdown Power SHDN = V SHDN OV Output Supply Voltage DD I Analog Supply Current DC Input VDD P Power ...

Page 7

TIMING DIAGRAM ANALOG INPUT – ENC + ENC D0-D13 CLKOUT – CLKOUT TYPICAL PERFORMANCE CHARACTERISTICS LTC2207-14: Integral Nonlinearity (INL) vs Output Code 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 8192 10240 0 2048 4096 ...

Page 8

LTC2207-14/LTC2206-14 TYPICAL PERFORMANCE CHARACTERISTICS LTC2207-14: 64K Point FFT 15.1MHz, –25dBFS, PGA = 0, IN RAND “On”, Dither “On” 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 FREQUENCY ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS LTC2207-14: 64K Point FFT 70.1MHz, –25dBFS, IN PGA = 0, RAND “On”, Dither “Off’ 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 FREQUENCY (MHz) ...

Page 10

LTC2207-14/LTC2206-14 TYPICAL PERFORMANCE CHARACTERISTICS LTC2207-14: SNR and SFDR vs Supply Voltage ( 5.1MHz, –1dBFS IN 110 105 100 95 SFDR SNR 75 70 2.8 3.0 3.2 3.4 SUPPLY VOLTAGE (V) 2207614 G25 LTC2207-14: ...

Page 11

TYPICAL PERFORMANCE CHARACTERISTICS LTC2206-14: 64K Point FFT 15.1MHz, –25dBFS, PGA = 0, RAND = “On”, Dither “Off” 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 FREQUENCY (MHz) ...

Page 12

LTC2207-14/LTC2206-14 TYPICAL PERFORMANCE CHARACTERISTICS LTC2206-14: 32K Point 2-Tone FFT 69.2MHz and 76.5MHz, –15dBFS, PGA = 0, RAND = “On”, Dither “Off” 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 ...

Page 13

TYPICAL PERFORMANCE CHARACTERISTICS LTC2206-14: SNR and SFDR vs Sample Rate 5.1MHz, IN –1dBFS 110 105 SFDR 100 SNR 110 135 160 85 SAMPLE RATE (Msps) 2207614 G52 LTC2206-14: SNR ...

Page 14

LTC2207-14/LTC2206-14 TYPICAL PERFORMANCE CHARACTERISTICS Mid-Scale Settling After Wake Up from Shutdown or Starting Encode Clock 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 100 150 200 TIME AFTER WAKE-UP OR CLOCK START (μs) PIN FUNCTIONS ...

Page 15

PIN FUNCTIONS OF (Pin 43): Over/Under Flow Digital Output high when an over or under fl ow has occurred. OE (Pin 44): Output Enable Pin. Low enables the digital output drivers. High puts digital outputs in Hi-Z state. ...

Page 16

LTC2207-14/LTC2206-14 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 ...

Page 17

APPLICATIONS INFORMATION CONVERTER OPERATION The LTC2207-14/LTC2206-14 are CMOS pipelined multistep converters with a front-end PGA. As shown in Figure 1, the converter has fi ve pipelined ADC stages; a sampled analog input will result in a digitized value seven clock ...

Page 18

LTC2207-14/LTC2206-14 APPLICATIONS INFORMATION SAMPLE/HOLD OPERATION AND INPUT DRIVE Sample/Hold Operation Figure 2 shows an equivalent circuit for the LTC2207-14/ LTC2206-14 CMOS differential sample and hold. The dif- ferential analog inputs are sampled directly onto sampling capacitors (C ) through NMOS ...

Page 19

APPLICATIONS INFORMATION INPUT DRIVE CIRCUITS Input Filtering A fi rst order RC lowpass fi lter at the input of the ADC can serve two functions: limit the noise from input circuitry and provide isolation from ADC S/H switching. The LTC2207- ...

Page 20

LTC2207-14/LTC2206-14 APPLICATIONS INFORMATION Direct Coupled Circuits Figure 5 demonstrates the use of a differential amplifi convert a single ended input signal into a differential input signal. The advantage of this method is that it provides low frequency input ...

Page 21

APPLICATIONS INFORMATION V 1.25V 2.2μF SENSE 6 2 3.3V LT1461-2.5 1μF 2.2μF 4 Figure 7. A 2.25V Range ADC with an External 2.5V Reference 0.1μF T1 50Ω 8.2pF 50Ω 0.1μF 0.1μ MA/COM ETC1-1-13 RESISTORS AND CAPACITORS ARE 0402 ...

Page 22

LTC2207-14/LTC2206-14 APPLICATIONS INFORMATION Driving the Encode Inputs The noise performance of the LTC2207-14/LTC2206-14 can depend on the encode signal quality as much as on the analog input. The encode inputs are intended to be driven differentially, primarily for noise immunity ...

Page 23

APPLICATIONS INFORMATION DIGITAL OUTPUTS Digital Output Buffers Figure 11 shows an equivalent circuit for a single output buffer. Each buffer is powered by OV from the ADC power and ground. The additional N-channel transistor in the output driver allows operation ...

Page 24

LTC2207-14/LTC2206-14 APPLICATIONS INFORMATION converter data to the digital system. This is necessary when using a sinusoidal encode. Data can be latched on the rising edge of CLKOUT+ or the falling edge of CLKOUT–. CLKOUT+ falls and CLKOUT– rises as the ...

Page 25

APPLICATIONS INFORMATION + AIN ANALOG S/H INPUT AMP – AIN CLOCK/DUTY CYCLE CONTROL + ENC Figure 14. Functional Equivalent Block Diagram of Internal Dither Circuit As shown in Figure 14, the output of the sample-and-hold amplifi summed with ...

Page 26

LTC2207-14/LTC2206-14 APPLICATIONS INFORMATION 26 Silkscreen Top Top Side 220714614fc ...

Page 27

APPLICATIONS INFORMATION Inner Layer 2 Inner Layer 4 LTC2207-14/LTC2206-14 Inner Layer 3 Inner Layer 5 220714614fc 27 ...

Page 28

LTC2207-14/LTC2206-14 APPLICATIONS INFORMATION 28 Bottom Side Silkscreen Bottom 220714614fc ...

Page 29

APPLICATIONS INFORMATION RANDOMIZER (REQUIRES CHANGE IN SELECTED DEVICE SCOPE PGA SENSE ANALOG INPUT (50Ω) ENC CLOCK INPUT (50Ω) Ordering Guide: DEMO BOARD NUMBER PART NUMBER DC918C-A LTC2207CUK DC918C-B LTC2207CUK DC918C-C LTC2206CUK DC918C-D LTC2206CUK DC918C-E LTC2205CUK DC918C-F LTC2205CUK ...

Page 30

LTC2207-14/LTC2206-14 APPLICATIONS INFORMATION OGND OGND 23 D12 D4 22 D13 D3 21 D14 D2 20 D15 ...

Page 31

... SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE 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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 32

... High IIP3: 20dBm at 1.9GHz, Integrated LO Quadrature Generator High IIP3: 21.5dBm at 900MHz, Integrated LO Quadrature Generator High IIP3: 21dBm at 800MHz, Integrated LO Quadrature Generator 4.5V to 5.25V Supply, 25dBm IIP3 at 900MHz 12.5dB, 50Ω Single-Ended RF and LO Ports www.linear.com ● 220714614fc LT 0809 REV C • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2006 ...

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