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Texas Instruments ADS9212 User Manual
Texas Instruments ADS9212 User Manual

Texas Instruments ADS9212 User Manual

Evaluation module

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EVM User's Guide: ADS9212EVM
ADS9212 Evaluation Module
Description
The ADS9212EVM is a platform for evaluating
the performance of the ADS9212 dual channel,
simultaneous-sampling SAR ADC, which includes a
PGA front-end to support input voltages of ±12 V, ±10
V, ±7 V, ±5 V, ±3.5 V, and ±2.5 V, in single-ended and
differential configurations. The ADC core supports 18-
bit resolution at 8-MSPS/channel.
The ADS9212EVM includes a standard FMC
connector on the back of the PCB. The FMC
connector can be used to mate with standard FPGA
kits, including the
TSWDC155EVM
The TSWDC155EVM is a digital controller board that
is necessary for the included EVM software GUI to
communicate with the device and commute and graph
measured results.
SBAU456 – SEPTEMBER 2024
Submit Document Feedback
Features
(sold separately).
ADS9212EVM
Copyright © 2024 Texas Instruments Incorporated
ADS9212EVM has the hardware required for
diagnostic testing and accurate performance
evaluation of the ADS9212 ADC.
The TSWDC155EVM controller (sold separately)
provides all necessary digital I/O signals
and power rails required for operating the
ADS9212EVM.
Easy-to-use evaluation GUI for Microsoft
Windows
®
10, 64-bit operating systems requires
the TSWDC155EVM (sold separately) for
operation.
The included software suite features graphical
tools for data capture, histogram analysis, spectral
analysis, and linearity measurements.
Description
®
ADS9212 Evaluation Module
1

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Summary of Contents for Texas Instruments ADS9212

  • Page 1 Features The ADS9212EVM is a platform for evaluating • ADS9212EVM has the hardware required for the performance of the ADS9212 dual channel, diagnostic testing and accurate performance simultaneous-sampling SAR ADC, which includes a evaluation of the ADS9212 ADC. PGA front-end to support input voltages of ±12 V, ±10 •...
  • Page 2 The ADS9212 SAR dual simultaneous-sampling ADC has an 18-bit resolution and samples at 8MSPS per channel. The ADS9212 features a complete analog front-end for each channel with an input clamp, 1MΩ input impedance, independently programmable gain amplifier (PGA), programmable low-pass filter, and an ADC input driver.
  • Page 3 2 Hardware 2.1 ADS9212EVM Quick Start Guide The following instructions are a step-by-step guide to connecting the ADS9212EVM to the computer and evaluating the performance of the ADS9212. 1. Review the default jumper settings in Figure 2-1 below and the power guidelines in Section 2.2.1.
  • Page 4 5V supply. USB hubs can cause possible device enumeration issues and are not recommended when communicating through the TSWDC155EVM. ADS9212 Evaluation Module SBAU456 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 5 PSRR, low drop-out voltage and excellent load and line regulation to help meet strict transient requirements. The REF7040 on the EVM is the 4.096V output voltage option. To connect the REF7040 (U4) to the ADS9212, configure the REFIO pin as an input via the GUI and then install a shunt on jumper JP6.
  • Page 6 2.4 Digital Interface Connections The ADS9212 uses SPI to configure the internal device registers (SCLK, SDI, SDO, CSn, and SPI_EN). A separate CMOS interface is used for capturing conversion data for each ADC channel using up to four output data lanes (D0, D1, D2, and D3).
  • Page 7 ADS9212RSHT 0.1µF 0.1µF Figure 2-6. Connections to ADS9212 2.5 Digital Interface and Clock Inputs The ADS9212EVM uses single-ended sampling clock for ADC conversions. The positive sampling clock input (SMPL_CLKP) is selected using jumper JP8. Install a shunt in the [2-3] position (default) to source the clock signal from the TSWDC155EVM through the FMC connector.
  • Page 8 Note The GUI installer and GUI buttons can differ slightly depending on which specific GUI is being installed. Figure 3-1. Initial Software Installation ADS9212 Evaluation Module SBAU456 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 9 This process takes a few minutes. At completion, the user can launch a readme text file and the application. These steps are shown in Figure 3-2. Figure 3-2. Installation Process SBAU456 – SEPTEMBER 2024 ADS9212 Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 10 6. Click on Have Disk in the pop-up window and navigate to: a. For ADS9212EVM: C:\Program Files\Texas Instruments\ADS9212_EVM_GUI\bin\proj_lib\Sparrow\Bootloader Figure 3-3. Open Device Manager Figure 3-4. Update Driver With Device Manager ADS9212 Evaluation Module SBAU456 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 11 Status message. For the Power Up and Program FPGA buttons, some status LEDs on the hardware illuminate. After all four buttons are pressed, the power on the ADS9212EVM is on and the ADS9212 device registers are configured. Press the bu o ns circled below.
  • Page 12 FFT results. 3. Select Hanning type FFT window 4. Press “Start Capture” to collect data Figure 3-6. Initial Required Setup on the Capture Tab ADS9212 Evaluation Module SBAU456 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 13 3. Choose channel A 4. Press “GET INL/ or B DNL” to collect data 5. Measured INL and DNL shown here. Figure 3-7. Using the INL/DNL Tool SBAU456 – SEPTEMBER 2024 ADS9212 Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 14 B and adjust “Vref” and “Input Full Scale” values, if needed. 4. Press “GET HISTOGRAM” to collect data Figure 3-8. Using the Histogram Tab ADS9212 Evaluation Module SBAU456 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 15 4 Hardware Design Files 4.1 Schematics 4.1.1 ADS9212EVM Schematics The schematics below show the various connections to the ADS9212 device. The digital signals connect to J19, as shown in Figure 4-3. The analog signals connect to SMA connectors and input filtering. The decoupling for the device is shown in Figure 4-1.
  • Page 16 Green TPS7A2018PDBVR 10uH 3P3V 1µF 1µF VBAT VOUT 1V8_IOVDD 10uF 1.96M TPS61070DDCR 22µF TPS7A2018PDBVR 200k 1µF 1µF Figure 4-2. Power Connections and Regulators Schematic ADS9212 Evaluation Module SBAU456 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 17 J19H J19J DCLKOUT FMC_SMPL_CLKP FMC_SMPL_CLKM SPI_EN 3P3VAUX SCLK 3P3V SMPL_SYNC 3P3V 3P3V VADJ VADJ ASP-134488-01 ASP-134488-01 ASP-134488-01 ASP-134488-01 ASP-134488-01 Figure 4-3. Digital Connector Schematic SBAU456 – SEPTEMBER 2024 ADS9212 Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 18 Figure 4-4. Top Overlay Figure 4-5. Top Layer Figure 4-7. Power Layer Figure 4-6. Ground Layer Figure 4-8. Bottom Layer Figure 4-9. Bottom Overlay ADS9212 Evaluation Module SBAU456 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 19 RES, 33, 5%, 0.063 W, 0402 0402 CRCW040233R0JNED Vishay-Dale R23, R24 SH-J2, SH-J3, SH- Shunt, 2.54mm, Gold, Black Shunt, 2.54mm, Black 60900213421 Wurth Elektronik J5, SH-J6, SH-J11 SBAU456 – SEPTEMBER 2024 ADS9212 Evaluation Module Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 20 DDC0006A TPS61070DDCR Texas Instruments PFM/PWM Boost Converter in ThinSOT-23, DDC0006A (SOT-23-T-6) 18-Bit, 2-MSPS, Dual Simultaneous-Sampling VQFN56 ADS9212RSHT Texas Instruments ADC with Integrated analog Front-End ADS9212 Evaluation Module SBAU456 – SEPTEMBER 2024 Submit Document Feedback Copyright © 2024 Texas Instruments Incorporated...
  • Page 21 USB Implementers Forum. All trademarks are the property of their respective owners. 6 Related Documentation The following related documents are available for download through the Texas Instruments web site at www.ti.com. Table 6-1. Related Documentation...
  • Page 22 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2024, Texas Instruments Incorporated...