KAD5512P-50Q72 Intersil, KAD5512P-50Q72 Datasheet

IC ADC 12BIT 500MSPS SGL 72-QFN

KAD5512P-50Q72

Manufacturer Part Number
KAD5512P-50Q72
Description
IC ADC 12BIT 500MSPS SGL 72-QFN
Manufacturer
Intersil
Series
FemtoCharge™r
Datasheet

Specifications of KAD5512P-50Q72

Number Of Bits
12
Sampling Rate (per Second)
500M
Data Interface
Serial, SPI™
Number Of Converters
1
Power Dissipation (max)
460mW
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
72-VFQFN Exposed Pad
For Use With
KDC5512EVAL - DAUGHTER CARD FOR KAD5512KDC5512-50EVAL - DAUGHTER CARD FOR KAD5512
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
12-Bit, 500MSPS A/D Converter
General Description
The KAD5512P-50 is a low-power, high-performance, 12-bit,
500MSPS analog-to-digital converter designed with Intersil’s
proprietary FemtoCharge™ technology on a standard
CMOS process. The KAD5512P-50 is part of a
pin-compatible portfolio of 10, 12 and 14-bit A/Ds with
sample rates ranging from 125MSPS to 500MSPS.
The device utilizes two time-interleaved 12-bit, 250MSPS
A/D cores to achieve the ultimate sample rate of 500MSPS.
A single 500MHz conversion clock is presented to the
converter, and all interleave clocking is managed internally.
A serial peripheral interface (SPI) port allows for extensive
configurability, as well as fine control of matching
characteristics (gain, offset, skew) between the two
converter cores. These adjustments allow the user to
minimize spurs associated with the interleaving process.
Digital output data is presented in selectable LVDS or CMOS
formats. The KAD5512P-50 is available in a 72-contact QFN
package with an exposed paddle. Performance is specified
over the full industrial temperature range (-40°C to +85°C).
Pin-Compatible Family
KAD5514P-25
KAD5514P-21
KAD5514P-17
KAD5514P-12
KAD5512P-50
KAD5512P-25, KAD5512HP-25
KAD5512P-21, KAD5512HP-21
KAD5512P-17, KAD5512HP-17
KAD5512P-12, KAD5512HP-12
KAD5510P-50
MODEL
®
1
RESOLUTION
Data Sheet
14
14
14
14
12
12
12
12
12
10
SPEED
(MSPS)
250
210
170
125
500
250
210
170
125
500
1-888-INTERSIL or 1-888-468-3774
FemtoCharge is a trademark of Kenet Inc. Copyright Intersil Americas Inc. 2008, 2009. All Rights Reserved
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Programmable Gain, Offset and Skew control
• 1.3GHz Analog Input Bandwidth
• 60fs Clock Jitter
• Over-Range Indicator
• Selectable Clock Divider: ÷1 or ÷2
• Clock Phase Selection
• Nap and Sleep Modes
• Two’s Complement, Gray Code or Binary Data Format
• DDR LVDS-Compatible or LVCMOS Outputs
• Programmable Built-in Test Patterns
• Single-Supply 1.8V Operation
• Pb-Free (RoHS Compliant)
Applications
• Radar and Satellite Antenna Array Processing
• Broadband Communications
• High-Performance Data Acquisition
Key Specifications
• SNR = 65.9dBFS for f
• SFDR = 82.0dBc for f
• Total Power Consumption = 432mW
CLKP
CLKN
VINN
VINP
VCM
October 9, 2009
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
SHA
SHA
INTERLEAVE CONTROL
CLOCK GENERATION
IN
IN
= 105MHz (-1dBFS)
= 105MHz (-1dBFS)
AND
VREF
250 MSPS
250 MSPS
1.25V
12-BIT
12-BIT
KAD5512P-50
ADC
ADC
VREF
+
CORRECTION
CONTROL
DIGITAL
ERROR
SPI
FN6805.3
CLKOUTP
CLKOUTN
D[11:0]P
D[11:0]N
ORP
ORN
OUTFMT
OUTMODE

Related parts for KAD5512P-50Q72

KAD5512P-50Q72 Summary of contents

Page 1

... These adjustments allow the user to minimize spurs associated with the interleaving process. Digital output data is presented in selectable LVDS or CMOS formats. The KAD5512P-50 is available in a 72-contact QFN package with an exposed paddle. Performance is specified over the full industrial temperature range (-40°C to +85°C). ...

Page 2

... Ordering Information PART NUMBER (Note) KAD5512P-50Q72 KAD5512P-50 Q72EP-I NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 ...

Page 3

... Power-On Calibration . . . . . . . . . . . . . . . . . . . . . . . . . 14 User Initiated Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Analog Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Clock Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Jitter Voltage Reference Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Over Range Indicator . . . . . . . . . . . . . . . . . . . . . . . . . .17 Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3 KAD5512P-50 Nap/Sleep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Serial Peripheral Interface . . . . . . . . . . . . . . . . . . . . . . 20 SPI Physical Interface SPI Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Device Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Indexed Device Configuration/Control . . . . . . . . . . . . 21 Global Device Configuration/Control Device Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 SPI Memory Map ...

Page 4

... P-P P 3mA LVDS CSB at logic high D Sample Clock Running Sample Clock Running DNL INL f MIN S f MAX S = -1dBFS 500MSPS. SAMPLE KAD5512P-50 (Note 2) MIN TYP MAX 1.40 1.47 1.54 500 1.9 90 -10.0 ±2.0 10.0 ±2.0 435 535 635 0.9 1.8 1.7 1.8 1 ...

Page 5

... 190MHz 364MHz 695MHz 995MHz IN IMD f = 70MHz 170MHz IN WER FPBW OVDD = -1dBFS 500MSPS. (Continued) SAMPLE KAD5512P-50 (Note 2) MIN TYP MAX 65.9 63.6 65.9 65.8 65.5 64.4 63.2 65.7 63.2 65.7 65.7 65.0 59.8 50.0 10.6 10.2 10.6 10.6 10.5 9.7 8.0 87 ...

Page 6

... Output Rise Time Output Fall Time Timing Diagrams SAMPLE N INP INN t A CLKN CLKP LATENCY = L CYCLES t CPD CLKOUTN CLKOUTP D[11:0]P DATA DATA N-L N-L+1 D[11:0]N FIGURE 1. LVDS TIMING DIAGRAM (see “Digital Outputs” on page 17) 6 KAD5512P-50 CONDITIONS MIN 3mA Mode ...

Page 7

... SPI Interface timing is directly proportional to the ADC sample period (t 11. The SPI may operate asynchronously with respect to the ADC sample clock. 12. The CSB setup time increases in sleep mode due to the reduced power state, CSB setup time in Nap mode is equal to normal mode CSB setup time (4ns min). 7 KAD5512P-50 CONDITION SYMBOL t A ...

Page 8

... RLVDS 47 CLKOUTN 48 CLKOUTP [CLKOUT KAD5512P-50 AVDD 1.8V Analog Supply DNC Do Not Connect AVSS Analog Ground Analog Input Negative, Positive VCM Common Mode Output Tri-Level Clock Divider Control Clock Input True, Complement Tri-Level Output Mode (LVDS, LVCMOS) Tri-Level Power Control (Nap, Sleep modes) Power-On Reset (Active Low, see “ ...

Page 9

... OUTFMT Exposed Paddle NOTE: LVCMOS Output Mode Functionality is shown in brackets ( Connection) 9 KAD5512P-50 D7N LVDS Bit 7 Output Complement [NC] [NC in LVCMOS] D7P LVDS Bit 7 Output True [D7] [LVCMOS Bit 7] D8N LVDS Bit 8 Output Complement [NC] [NC in LVCMOS] D8P LVDS Bit 8 Output True [D8] [LVCMOS Bit 8] D9N ...

Page 10

... Pinout AVDD 1 DNC 2 3 DNC 4 DNC 5 DNC 6 AVDD 7 AVSS 8 AVSS 9 VINN 10 VINP 11 AVSS 12 AVDD 13 DNC 14 DNC 15 VCM 16 CLKDIV 17 DNC DNC KAD5512P-50 KAD5512P-50 (72 LD QFN) TOP VIEW CONNECT THERMAL PAD TO AVSS D8P 53 D8N 52 D7P 51 D7N 50 D6P 49 D6N 48 CLKOUTP 47 CLKOUTN 46 RLVDS 45 OVSS 44 D5P ...

Page 11

... SFDR SNR 65 60 300 325 350 375 400 SAMPLE RATE (MSPS) FIGURE 7. SNR AND SFDR KAD5512P-50 All Typical Performance Characteristics apply under the following conditions unless otherwise noted: AVDD = OVDD = 1.8V 500MSPS. SAMPLE -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 600M 800M ...

Page 12

... CODE FIGURE 13. NOISE HISTOGRAM 12 KAD5512P-50 All Typical Performance Characteristics apply under the following conditions unless otherwise noted: AVDD = OVDD = 1.8V 500MSPS. (Continued) SAMPLE 0.5 0.4 0.3 0.2 0.1 0.0 -0.1 -0.2 -0 ...

Page 13

... SNR = 61.2dBFS SFDR = 49.6dBc -20 SINAD = 50.0dBFS -40 -60 -80 -100 -120 0M 50M 100M FREQUENCY (Hz) FIGURE 17. SINGLE-TONE SPECTRUM @ 995MHz 13 KAD5512P-50 All Typical Performance Characteristics apply under the following conditions unless otherwise noted: AVDD = OVDD = 1.8V 500MSPS. (Continued) SAMPLE 0 -20 -40 -60 -80 -100 -120 0M 150M 200M 250M FIGURE 16 ...

Page 14

... The KAD5512P-50 does not have the ability to adjust timing skew mismatches as part of the internal calibration sequence. Clock routing to each unit ADC is carefully matched, however ...

Page 15

... OVDD the case during power-on reset, the SDO, RESETN and DNC pins must be in the proper state for the calibration to successfully execute. The performance of the KAD5512P-50 changes with variations in temperature, supply voltage or sample rate. The extent of these changes may necessitate recalibration, depending on system performance requirements ...

Page 16

... VCM. The value of the shunt resistor should be determined based on the desired load impedance. The differential input resistance of the KAD5512P-50 is 500Ω. The SHA design uses a switched capacitor input stage (see Figure 40), which creates current spikes when the sampling capacitance is reconnected to the input voltage ...

Page 17

... The OR bit is updated at the sample rate. Power Dissipation The power dissipated by the KAD5512P-50 is primarily dependent on the sample rate and the output modes: LVDS vs. CMOS and DDR vs. SDR. There is a static bias in the analog supply, while the remaining power dissipation is linearly related to the sample rate ...

Page 18

... XOR of the current bit position and the next most significant bit. Figure 30 shows this operation. 18 KAD5512P-50 GRAY CODE FIGURE 30. BINARY TO GRAY CODE CONVERSION Converting back to offset binary from Gray code must be done recursively, using the result of each bit for the next lower bit as shown in Figure 31 ...

Page 19

... W1 W0 CSB SCLK SDIO DSW CSB t S SCLK SDIO R DSW CSB t S SCLK SDIO R A12 SDO 19 KAD5512P-50 A12 A11 A10 FIGURE 32. MSB-FIRST ADDRESSING A11 A12 W0 W1 R/W D0 FIGURE 33. LSB-FIRST ADDRESSING t t CLK HI t DHW t LO A12 A11 A10 SPI WRITE FIGURE 34. SPI WRITE ...

Page 20

... The SPI port operates in a half duplex master/slave configuration, with the KAD5512P-50 functioning as a slave. Multiple slave devices can interface to a single master in three-wire mode only, since the SDO output of an unaddressed device is asserted in four wire mode ...

Page 21

... Device Information ADDRESS 0X08: CHIP_ID ADDRESS 0X09: CHIP_VERSION The generic die identifier and a revision number, respectively, can be read from these two registers. 21 KAD5512P-50 Indexed Device Configuration/Control ADDRESS 0X10: DEVICE_INDEX_A Bits 1:0 ADC01, ADC00 Determines which ADC is addressed. Valid states for this 1 register are 0x01 or 0x10 ...

Page 22

... FIGURE 38. PHASE SLIP: CLK÷2 MODE, f Sleep Mode ADDRESS 0X72: CLOCK_DIVIDE The KAD5512P-50 has a selectable clock divider that can be set to divide by two or one (no division). By default, the tri-level CLKDIV pin selects the divisor (refer to “Clock Input” on page 16). This functionality can be overridden and controlled through the SPI, as shown in Table 12 ...

Page 23

... ADDRESS 0X73: OUTPUT_MODE_A The output_mode_A register controls the physical output format of the data, as well as the logical coding. The KAD5512P-50 can present output data in two physical formats: LVDS or LVCMOS. Additionally, the drive strength in LVDS mode can be set high (3mA) or low (2mA). By default, the tri-level OUTMODE pin selects the mode and drive level (refer to “ ...

Page 24

... These registers define the lower and upper eight bits, respectively, of the first user-defined test word. ADDRESS 0XC4: USER_PATT2_LSB ADDRESS 0XC5: USER_PATT2_MSB These registers define the lower and upper eight bits, respectively, of the second user-defined test word. 24 KAD5512P-50 WORD 1 WORD 2 N/A N/A N/A N/A ...

Page 25

... Output Mode [2:0] 000 = Pin Control 001 = LVDS 2mA 010 = LVDS 3mA 100 = LVCMOS other codes = reserved 74 output_mode_B 75 config_status 76-BF reserved 25 KAD5512P-50 TABLE 17. SPI MEMORY MAP BIT 6 BIT 5 BIT 4 BIT 3 LSB Soft First Reset Reserved Burst end address [7:0] Reserved Chip ID # ...

Page 26

... CSAMP 1.6pF INP Φ Φ 500O Ω CSAMP AVDD 1.6pF INN Φ Φ FIGURE 40. ANALOG INPUTS 26 KAD5512P-50 TABLE 17. SPI MEMORY MAP (Continued) BIT 6 BIT 5 BIT 4 BIT 3 Output Test Mode [3: Off 1 = Midscale Short 2 = +FS Short 3 = -FS Short 4 = Checker Board 5 = reserved 6 = reserved Reserved B6 ...

Page 27

... FPGA based data capture motherboard and a family of ADC daughtercards. This USB based platform allows a user to quickly evaluate the ADC’s performance at a user’s specific application frequency requirements. More information is available at http://www.intersil.com/converters/adc_eval_platform/ 27 KAD5512P-50 AVDD (20k PULL-UP ON RESETN ONLY) TO SENSE ...

Page 28

... Differential Non-Linearity (DNL) is the deviation of any code width from an ideal 1 LSB step. 28 KAD5512P-50 Effective Number of Bits (ENOB alternate method of specifying Signal to Noise-and-Distortion Ratio (SINAD calculated as: ENOB = (SINAD - 1.76)/6.02 Gain Error is the ratio of the difference between the voltages that cause the lowest and highest code transitions to the full- scale voltage less 2 LSB ...

Page 29

... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 29 KAD5512P-50 CHANGE FN6805.3 October 9, 2009 ...

Page 30

... Package Outline Drawing L72.10x10D 72 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 1, 11/08 10.00 PIN 1 INDEX AREA 6 (4X) 0.15 TOP VIEW 9.80 Sq 6.00 Sq TYPICAL RECOMMENDED LAND PATTERN 30 KAD5512P- 10. 72X 0.40 BOTTOM VIEW 0.90 Max 68X 0.50 72X 0. REF C 72X 0.60 NOTES: 1. Dimensions are in millimeters. ...

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