AD9434BCPZ-370 Analog Devices Inc, AD9434BCPZ-370 Datasheet

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AD9434BCPZ-370

Manufacturer Part Number
AD9434BCPZ-370
Description
IC ADC 12BIT 370MSPS 56LFCSP
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD9434BCPZ-370

Sampling Rate
370MSPS
Input Channel Type
Differential, Single Ended
Data Interface
Serial, SPI
Supply Current
260mA
Digital Ic Case Style
LFCSP
No. Of Pins
56
Rohs Compliant
Yes
Resolution (bits)
12bit
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD9434BCPZ-370
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
SNR = 65 dBFS at f
ENOB of 10.5 bits at f
SFDR = 78 dBc at f
Integrated input buffer
Excellent linearity
LVDS at 500 MSPS (ANSI-644 levels)
1 GHz full power analog bandwidth
On-chip reference, no external decoupling required
Low power dissipation
Programmable (nominal) input voltage range
1.8 V analog and digital supply operation
Selectable output data format (offset binary, twos
Clock duty cycle stabilizer
Integrated data clock output with programmable clock and
APPLICATIONS
Wireless and wired broadband communications
Cable reverse path
Communications test equipment
Radar and satellite subsystems
Power amplifier linearization
GENERAL DESCRIPTION
The
converter (ADC) optimized for high performance, low power,
and ease of use. The part operates at up to a 500 MSPS
conversion rate and is optimized for outstanding dynamic
performance in wideband carrier and broadband systems. All
necessary functions, including a sample-and-hold and voltage
reference, are included on the chip to provide a complete signal
conversion solution. The VREF pin can be used to monitor the
internal reference or provide an external voltage reference
(external reference mode must be enabled through the SPI
port).
The ADC requires a 1.8 V analog voltage supply and a differen-
tial clock for full performance operation. The digital outputs are
LVDS (ANSI-644) compatible and support twos complement,
offset binary format, or Gray code. A data clock output is
available for proper output data timing.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
DNL = ±0.5 LSB typical
INL = ±0.6 LSB typical
690 mW at 500 MSPS—LVDS SDR mode
660 mW at 500 MSPS—LVDS DDR mode
1.18 V p-p to 1.6 V p-p, 1.5 V p-p nominal
complement, Gray code)
data alignment
AD9434
is a 12-bit monolithic sampling analog-to-digital
IN
IN
IN
up to 250 MHz at 500 MSPS (−1.0 dBFS)
up to 250 MHz at 500 MSPS
up to 250 MHz at 500 MSPS (−1.0 dBFS)
1.8 V Analog-to-Digital Converter
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Fabricated on an advanced BiCMOS process, the AD9434 is
available in a 56-lead LFCSP, specified over the industrial
temperature range (−40°C to +85°C). This part is protected
under a U.S. patent.
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
CLK+
CLK–
VIN+
CML
VIN–
12-Bit, 370 MSPS/500 MSPS,
High Performance.
Maintains 65 dBFS SNR at 500 MSPS with a 250 MHz input.
Low Power.
Consumes only 660 mW at 500 MSPS.
Ease of Use.
LVDS output data and output clock signal allow interface
to FPGA technology. The on-chip reference and sample-
and-hold provide flexibility in system design. Use of a
single 1.8 V supply simplifies system power supply design.
Serial Port Control.
Standard serial port interface supports various product
functions, such as data formatting, power-down, gain
adjust, and output test pattern generation.
The AD9434 is pin compatible with the AD9230, and can
be substituted in many applications with minimal design
changes.
TRACK-AND-HOLD
VREF
MANAGEMENT
REFERENCE
FUNCTIONAL BLOCK DIAGRAM
CLOCK
PWDN
SCLK/DFS
©2011 Analog Devices, Inc. All rights reserved.
CORE
SERIAL PORT
ADC
Figure 1.
SDIO
12
AGND
CSB
STAGING
AD9434
OUTPUT
LVDS
AVDD
AD9434
12
www.analog.com
DRVDD
DRGND
D11± TO D0±
OR+
OR–
DCO+
DCO–

Related parts for AD9434BCPZ-370

AD9434BCPZ-370 Summary of contents

Page 1

FEATURES SNR = 65 dBFS 250 MHz at 500 MSPS IN ENOB of 10.5 bits 250 MHz at 500 MSPS (−1.0 dBFS) IN SFDR = 78 dBc 250 ...

Page 2

AD9434 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 DC Specifications ......................................................................... 3 AC Specifications .......................................................................... 4 Digital Specifications ...

Page 3

SPECIFICATIONS DC SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1 −40°C, T MIN Table 1. 1 Parameter RESOLUTION ACCURACY No Missing Codes Offset Error Gain Error Differential Nonlinearity (DNL) Integral Nonlinearity (INL) INTERNAL REFERENCE VREF TEMPERATURE DRIFT ...

Page 4

AD9434 AC SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1 −40°C, T MIN Table Parameter SNR f = 30.3 MHz 70.3 MHz 100.3 MHz ...

Page 5

DIGITAL SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1 −40°C, T MIN Table 3. 1 Parameter CLOCK INPUTS Logic Compliance Internal Common-Mode Bias Differential Input Voltage High Level Input ( Low Level Input (V ) ...

Page 6

AD9434 SWITCHING SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1 −40°C, T MIN Table 4. Parameter Maximum Conversion Rate Minimum Conversion Rate 1, 2 CLK+ Pulse Width High ( CLK+ Pulse Width Low (t ) ...

Page 7

Timing Diagrams N – 1 VIN+, VIN– CLK+ CLK– t CPD DCO+ DCO– Dx+ Dx– N – 1 VIN+, VIN– CLK+ CLK– t CPD DCO+ DCO– D0/D6+ D0/D6– D5/D11+ D5/D11– ...

Page 8

AD9434 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Rating Electrical AVDD to AGND −0 +2.0 V DRVDD to DRGND −0 +2.0 V AGND to DRGND −0 +0.3 V AVDD to DRVDD −2 +2.0 ...

Page 9

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 7. Pin Function Descriptions—Single Data Rate Mode Pin No. Mnemonic 1 0 AGND 30 34 39, AVDD 24, 47 DRVDD 1 8, 23, 48 DRGND ...

Page 10

AD9434 Pin No. Mnemonic 4 D4+ 5 D5− 6 D5+ 9 D6− 10 D6+ 11 D7− 12 D7+ 13 D8− 14 D8+ 15 D9− 16 D9+ 17 D10− 18 D10+ 19 D11− 20 D11+ 21 OR− 22 OR+ 1 AGND ...

Page 11

Table 8. Pin Function Descriptions—Double Data Rate Mode Pin No. Mnemonic 1 0 AGND 30 34 39, 41 AVDD to 43 24, 47 DRVDD 1 8, 23, 48 DRGND 35 VIN+ 36 VIN− 40 ...

Page 12

AD9434 Pin No. Mnemonic 6 D5/D11+ 9 OR− 20, 28 DNC 21 DNC/(OR−) 22 DNC/(OR+) 1 Tie AGND and DRGND to a common quiet ground plane. Description D5/D11 True Output (MSB). Overrange Complement Output. (This pin ...

Page 13

TYPICAL PERFORMANCE CHARACTERISTICS AVDD = 1.8 V, DRVDD = 1.8 V, rated sample rate 370MSPS 30.3MHz AT –1.0dBFS –20 SNR: 65.4dB ENOB: 10.7 BITS SFDR: 90dBc –40 –60 –80 –100 –120 100 FREQUENCY ...

Page 14

AD9434 0 491.52MSPS 368.3MHz AT –1.0dBFS –20 SNR: 64.0dB ENOB: 10.5 BITS SFDR: 79dBc –40 –60 –80 –100 –120 100 120 140 160 180 FREQUENCY (MHz) Figure 12. AD9434-500 64k Point Single-Tone; 491.52 MSPS, 368.3 ...

Page 15

SFDR (dBFS) 80 SNR (dBFS SFDR (dBc SNR (dB –90 –80 –70 –60 –50 –40 AMPLITUDE (dB) Figure 18. AD9434-370 SNR/SFDR vs. Input Amplitude; 500 MSPS, 140.3 MHz 100 90 ...

Page 16

AD9434 2.5 2.0 1.5 1.0 0 – – – BINS Figure 24. AD9434-370 Grounded Input Histogram; 370 MSPS 2.5 2.0 1.5 1.0 0 – – ...

Page 17

SFDR (dBc AD9434, 370MSPS 70 65 SNR (dBFS) AD9434, 500MSPS 1.5 1.6 1.7 1.8 V (V) CM Figure 30. SNR/SFDR vs. Common-Mode Voltage; 370 MSPS, 500 MSPS 140.3 MHz IN 350 ...

Page 18

AD9434 EQUIVALENT CIRCUITS AVDD AVDD 0.9V 15kΩ 15kΩ CLK+ Figure 33. Clock Inputs AVDD CML AVDD VIN+ 500Ω AVDD 500Ω SPI CONTROLLED VIN+ Figure 34. Analog Input DC Equivalent Circuit (V DRVDD 350Ω SCLK/DFS 30kΩ Figure 35. Equivalent SCLK/DFS, PDWN ...

Page 19

THEORY OF OPERATION The AD9434 architecture consists of a front-end sample-and- hold amplifier (SHA) followed by a pipelined switched capacitor ADC. The quantized outputs from each stage are combined into a final 12-bit result in the digital correction logic. The ...

Page 20

AD9434 ANALOG INPUT ANALOG INPUT CLOCK INPUT CONSIDERATIONS For optimum performance, drive the AD9434 sample clock inputs (CLK+ and CLK−) with a differential signal. This signal is typically ac-coupled into the CLK+ and CLK− pins via a transformer or capacitors. ...

Page 21

Clock Duty Cycle Considerations Typical high speed ADCs use both clock edges to generate a variety of internal timing signals result, these ADCs may be sensitive to clock duty cycle tolerance is commonly required on the ...

Page 22

AD9434 14 500 12 400 300 10 200 100 –100 –200 4 –300 –400 2 –500 0 –3 –2 – –40 TIME (ns) Figure 49. Data Eye for LVDS Outputs in ANSI Mode ...

Page 23

There are three pins that define the serial port interface (SPI) to this particular ADC. They are the SCLK/DFS, SDIO, and CSB pins. The SCLK/DFS (serial clock) is used to synchronize the read and write data presented to the ADC. ...

Page 24

AD9434 CSB SCLK DON’T CARE W1 W0 SDIO DON’T CARE R/W Table 11. Serial Timing Definitions Parameter Min (ns CLK ...

Page 25

MEMORY MAP READING THE MEMORY MAP TABLE Each row in the memory map table (see Table 13) has eight address locations. The memory map is roughly divided into three sections: chip configuration register map (Address 0x00 to Address 0x02), transfer ...

Page 26

AD9434 Addr. Bit 7 (Hex) Register Name (MSB) 10 Offset 0D TEST_IO (For user-defined mode only, set Bits[3:0] = 1000 Pattern 1 only 01 = toggle P1/ toggle P1/0000 11 = toggle P1/P2/ 0000 0F AIN_CONFIG ...

Page 27

Addr. Bit 7 (Hex) Register Name (MSB) 18 FLEX_VREF VREF select 00 = internal V (20 kΩ pull-down import V (0. 0 VREF pin export V (from internal reference not ...

Page 28

... Lead Frame Chip Scale Package [LFCSP_VQ] 56-Lead Lead Frame Chip Scale Package [LFCSP_VQ] 56-Lead Lead Frame Chip Scale Package [LFCSP_VQ] 56-Lead Lead Frame Chip Scale Package [LFCSP_VQ] LVDS Evaluation Board with AD9434BCPZ-370 LVDS Evaluation Board with AD9434BCPZ-500 D09383-0-5/11(A) Rev Page ...

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