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ADS5120EVM

SBAU078 – JUNE 2002

www.ti.com

DESCRIPTION

This user’s guide describes the function and operation of the
ADS5120 evaluation module. It is designed for ease of use
when evaluating the high-speed Analog-to-Digital Converter
(ADC) ADS5120. The ADS5120 is an 8-channel, simulta-
neous sampling 10-bit A/D converter sampling at up to
40MSPS. The evaluation module is completely assembled
and provides a transformer-coupled input configuration for
each of the channels. The ADS5120 operates on a 1.8V
single supply. Optionally, the output logic buffers can be
configured for 3.3V supply.

FEATURES

FULLY POPULATED EVM

PROVIDES FAST AND EASY PERFORMANCE
TESTING FOR THE ADS5120

DIFFERENTIAL TRANSFORMER-COUPLED
INPUT CONFIGURATION FOR EACH CHANNEL

EXTERNAL REFERENCE OPTION

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

Copyright © 2002, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Summary of Contents for ADS5120EVM

Page 1: ...ut logic buffers can be configured for 3 3V supply FEATURES FULLY POPULATED EVM PROVIDES FAST AND EASY PERFORMANCE TESTING FOR THE ADS5120 DIFFERENTIAL TRANSFORMER COUPLED INPUT CONFIGURATION FOR EACH...

Page 2: ...rovide higher performance Voltage Limits Exceeding the maximum input voltages can damage EVM components Under voltage may cause improper operation of some or all of the EVM components ADS5120EVM OPERA...

Page 3: ...control the operation of the device Standby The ADC has individual standby control inputs for each of the eight output data buses These are controlled by the two dip switches S1 and S10 Table IV shows...

Page 4: ...rd headers are on a 100 mil grid which allows for easy connection to a logic analyzer PHYSICAL DESCRIPTION This section describes the physical characteristics and PCB layout of the EVM and lists the c...

Page 5: ...D R10 R21 R22 R31 R127 R129 R131 R133 R135 R137 R139 R141 R143 2 49k Resistor 1 16W 1 603 1 ERJ 3EKF249R0V Panasonic P2 49KHCT ND R15 3 01k Resistor 1 16W 1 603 1 ERJ 3EKF301R0V Panasonic P3 01KHCT ND...

Page 6: ...FB EXT_CML 2 3 1 4 11 U2A OPA4227UA 5 6 7 U2B OPA4227UA 10 9 8 U2C OPA4227UA TP1 TP2 C6 10 F C3 10 F 1 2 3 R16 1K C7 10 F R20 100 C13 0 047 F R22 49 9 R24 2 0K 0 1 0 1 C20 0 1 F R29 10K R27 475 1 2 3...

Page 7: ...6T KK81_XFMR AIND AIND CML CML 5VA DIN AIN BIN 1 2 3 4 5 J6 C246 0 1 F R137 49 9 R154 4 02K 1 R155 1K 1 R136 0 C245 0 1 F 4 6 3 2 1 T6 T1 6T KK81 XFMR CML CML 5VA AINE AINE EIN 1 2 3 4 5 J7 C243 0 1 F...

Page 8: ...C157 0 1 F C156 0 1 F C155 0 1 F C154 0 1 F R92 4 7K R91 4 7K R90 4 7K R89 4 7K DRVDD A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 D0 D1 D2 D3 D4 D5 D6 D7...

Page 9: ...27 1Y10 14 VCC 35 VCC 7 VCC 50 GND 11 GND 46 GND 25 GND 39 GND 18 GND 53 GND 4 U11 SN74AVC16827 DGG C166 0 1uF DRVDD DRVDD C165 0 1uF C164 0 1uF C163 0 1uF C162 0 1uF R96 4 7K R95 4 7K R94 4 7K R93 4...

Page 10: ...14 DRGND N17 DRGND M15 DRGND M17 DRGND L17 DRGND H17 DRGND G17 DRGND G15 DRGND G14 DRGND F14 DRGND F15 DRGND F13 DRGND E13 DRGND C13 DRGND B13 DRGND F11 DRGND F10 U1C 257B GA_ADS5120 DVDD DRVDD AVDD D...

Page 11: ...ADS5120EVM SBAU078 11 www ti com FIGURE 6 EVM Layer 1 Top Layer with Silk Screen...

Page 12: ...ADS5120EVM 12 SBAU078 www ti com FIGURE 7 EVM Layer 2 Ground Plane I...

Page 13: ...ADS5120EVM SBAU078 13 www ti com FIGURE 8 EVM Layer 3 Inner Layer I...

Page 14: ...ADS5120EVM 14 SBAU078 www ti com FIGURE 9 EVM Layer 4 Split Power Plane I...

Page 15: ...ADS5120EVM SBAU078 15 www ti com FIGURE 10 EVM Layer 5 Inner Layer II...

Page 16: ...ADS5120EVM 16 SBAU078 www ti com FIGURE 11 EVM Layer 6 Split Power Plane II...

Page 17: ...ADS5120EVM SBAU078 17 www ti com FIGURE 12 EVM Layer 7 Ground Plane II...

Page 18: ...ADS5120EVM 18 SBAU078 www ti com FIGURE 13 EVM Layer 8 Bottom Layer with Silk Screen...

Page 19: ...rising from the handling or use of the goods Please be aware that the products received may not be regulatory compliant or agency certified FCC UL CE etc Due to the open construction of the product it...

Page 20: ...EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation some circuit components may have case temperatures greater than 60 C Th...

Page 21: ...iness practice TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product wou...

Page 22: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments ADS5120EVM...

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