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Texas Instruments ADS8413IRGZR
- Part No.:
- ADS8413IRGZR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
ADS8413IRGZR.pdf
- Description:
- IC ADC 16BIT SAR 48VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADS8413IRGZR from Texas Instruments is a 16-bit, 2-MSPS SAR analog-to-digital converter with unipolar differential input range (–4 V to +4 V), integrated 4.096-V reference, and 200-Mbps LVDS serial interface. It delivers 92 dB SNR and –107 dB THD at 10 kHz, supports zero-latency operation at full speed, and targets high-speed data acquisition in medical instrumentation and closed-loop control systems.
For engineers reviewing the ADS8413IRGZR datasheet, ADS8413IRGZR pinout, ADS8413IRGZR application, or ADS8413IRGZR equivalent, this page provides verified technical context, validated pin functions, confirmed timing behavior under 2-MSPS throughput, real-world daisy-chain interoperability details, and precise power-performance trade-offs between Nap mode (25 mA) and Power Down (1–2.5 µA).
Technical Context
The ADS8413IRGZR implements a capacitor-based SAR architecture with inherent sample-and-hold, enabling true zero-latency conversion at 2 MSPS. Its internal 4.096-V reference is buffered and stable to ±36 ppm/°C, with 25-ms start-up time when using a 1-µF storage capacitor on REFOUT.
The 200-Mbps LVDS serial interface supports both daisy-chain and cascade configurations via MODE_C/D selection, with configurable 16-/8-bit frame modes and programmable clock source (internal 200-MHz oscillator or external CLK_I). SYNC_O framing and BUS_BUSY handshaking ensure deterministic multi-device synchronization without external logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full-scale linearity for precision measurement applications. |
| Sample Rate | 2 MSPS maximum throughput - enables real-time capture of signals up to 37.5 MHz small-signal bandwidth. |
| SNR / THD | 92 dB SNR and –107 dB THD at 10 kHz - meets demanding dynamic range requirements in medical imaging and spectral analysis. |
| INL / DNL | ±2 LSB max INL and +1.5/–1 LSB max DNL - ensures accurate amplitude fidelity across full input range (–4 V to +4 V differential). |
| Power Dissipation | 290 mW at 2 MSPS; 125 mW in Nap mode; 5 µW in Power Down - supports thermal-constrained embedded systems and battery-aware designs. |
| LVDS Interface | 200-Mbps serial output with SYNC_O framing, CLK_O, and SDO - eliminates parallel bus routing, reduces EMI, and enables multi-device cascading. |
| Reference | Integrated 4.096-V reference with ±0.03% gain error and 36 ppm/°C drift - removes need for external precision reference and simplifies BOM. |
Pinout & Package
ADS8413IRGZR is housed in a 48-pin QFN package (RGZ) with exposed thermal pad, optimized for low-inductance analog grounding and high-speed LVDS signal integrity. Pin layout separates analog (AGND, +VA, REFM, REFIN, REFOUT, +IN, –IN), digital (BDGND, +VBD), LVDS (CSTART±, CLK_I±, CLK_O±, SDI±, SDO±, SYNC_I±, SYNC_O±), and CMOS control (CS, CONVST, BYTE, PD, NAP, LAT_Y/N, MODE_C/D, CLK_I/E) domains.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 18 (+IN), 19 (–IN) | Analog differential input | Accepts –4 V to +4 V unipolar differential swing with common-mode at Vref/2; requires 0.1-µF bypass to REFM. |
| 13 (REFIN), 14 (REFOUT) | Reference input/output | REFIN accepts 3.9–4.2 V external reference; REFOUT supplies internal 4.096 V (short to REFIN when internal ref used). |
| 34/35 (CLK_I±), 38/39 (CLK_O±) | LVDS clock I/O | CLK_I± receives external 190–210 MHz clock; CLK_O± outputs synchronized 200-MHz clock for downstream devices. |
| 40/41 (SDO±), 42/43 (SYNC_O±) | LVDS data & frame sync | SDO± transmits 16-bit MSB-first serial data; SYNC_O± defines 16- or 8-clock frame boundaries for receiver alignment. |
| 2 (CONVST), 28/29 (CSTART±) | Conversion trigger | CMOS CONVST or LVDS CSTART initiates sampling on rising edge and conversion on falling edge - functionally identical. |
| 47 (RD), 48 (BUS_BUSY) | Data read handshake | RD falling edge starts LVDS read cycle; BUS_BUSY high indicates bus occupancy - critical for multi-device timing coordination. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-latency operation at 2 MSPS | Enables back-to-back sampling without pipeline delay - essential for real-time feedback in motor control and adaptive filtering. |
| Dual-mode LVDS interface | Supports both daisy-chain (MODE_C/D = 0) and cascade (MODE_C/D = 1) topologies - allows flexible system scalability up to 4 devices at full speed. |
| Configurable 16-/8-bit data frame | BYTE pin selects 16-clock (full word) or 8-clock (byte-wise) framing - simplifies FPGA/CPLD interface design and reduces clock domain complexity. |
| Low-power Nap mode | Reduces supply current from 64 mA to 25 mA while retaining fast wake-up - ideal for burst-mode acquisition with duty-cycled processing. |
| Internal reference with buffer | Eliminates external reference IC and decoupling network - cuts BOM cost and PCB area while maintaining ±0.03% gain accuracy. |
Applications
| Medical Imaging Systems | High-Speed Test Equipment |
|---|---|
|
Use Scenario: Digitizing ultrasound echo signals or MRI gradient waveforms requiring >16-bit fidelity and sub-500 ns aperture jitter. IC Role / Device Role / Timing Role: Primary ADC capturing analog front-end outputs with deterministic 2-MSPS sampling and LVDS streaming to FPGA. Use Value: 92 dB SNR and –107 dB THD preserve weak signal integrity; zero-latency mode enables real-time beamforming calculations. |
Use Scenario: Automated test equipment capturing transient waveforms during semiconductor parametric testing or power supply validation. IC Role / Device Role / Timing Role: High-throughput digitizer interfacing with precision analog stimulus sources and synchronized to system clock tree. Use Value: 2-MSPS rate captures fast edges; LVDS daisy-chaining supports multi-channel synchronized acquisition without timing skew. |
| Industrial Closed-Loop Control | Communications Signal Monitoring |
|
Use Scenario: Real-time monitoring of motor phase currents or servo position feedback in servo drives operating at >20 kHz PWM frequencies. IC Role / Device Role / Timing Role: ADC feeding control loop processor with minimal latency; Nap mode engaged during idle cycles to reduce thermal load. Use Value: Zero-latency operation ensures immediate response to fault conditions; 25 mA Nap current enables thermal management in compact enclosures. |
Use Scenario: Baseband signal analysis in RF test benches, capturing I/Q samples from downconverters for spectral purity evaluation. IC Role / Device Role / Timing Role: Wideband digitizer receiving differential baseband inputs, transmitting serialized data over LVDS to high-speed memory buffers. Use Value: 37.5 MHz small-signal bandwidth captures full IF bandwidth; internal reference stability minimizes calibration drift across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8412IRGZR | 16-bit, 2-MSPS, fully differential bipolar input (±Vref), no internal reference - requires external 4.096-V reference and driver circuitry. | Better suited for bipolar sensor interfaces (e.g., strain gauges, accelerometers); lacks integrated reference and unipolar optimization. | Select ADS8412IRGZR only when bipolar input range and external reference control are required; ADS8413IRGZR offers lower system complexity for unipolar use cases. |
| ADS8402IBRGZR | 14-bit, 2-MSPS, unipolar differential input, same 48-pin QFN package and LVDS interface - lower resolution but improved SNR (94 dB) at 10 kHz. | Targeted at cost-sensitive applications where 14-bit resolution suffices and higher SNR justifies reduced code depth. | Choose ADS8402IBRGZR for applications prioritizing noise floor over resolution (e.g., audio spectrum analyzers); ADS8413IRGZR retains full 16-bit code density for metrology-grade accuracy. |
Compared with ADS8412IRGZR and ADS8402IBRGZR, the ADS8413IRGZR uniquely combines integrated 4.096-V reference, unipolar differential input optimization, and guaranteed 16-bit no-missing-codes performance - making it the optimal choice for medical and industrial systems requiring minimal external components and deterministic full-resolution fidelity.
Availability
ADS8413IRGZR is available at Aetrix Electronics and suitable for medical instrumentation, high-speed data acquisition systems, and industrial closed-loop control applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADS8413IRGZR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data converters and high-speed interface solutions.
The ADS8413IRGZR belongs to TI's High-Speed SAR Converter Family, designed specifically for applications demanding 16-bit resolution at multi-MSPS rates with low-latency, low-power, and robust LVDS interfacing - targeting medical, test & measurement, and industrial automation markets.
FAQ
What is the absolute maximum input voltage range for ADS8413IRGZR?
The ADS8413IRGZR supports an absolute analog input voltage range of –0.2 V to (Vref + 0.2 V) on both +IN and –IN pins, with Vref = 4.096 V. This yields –0.2 V to +4.296 V per pin, and a differential span of –4 V to +4 V when referenced to Vref/2 common-mode. Exceeding these limits risks permanent damage per the Absolute Maximum Ratings table.
Does ADS8413IRGZR support external reference operation?
Yes, ADS8413IRGZR supports external reference operation via the REFIN pin (Pin 13), which accepts 3.9 V to 4.2 V. When using an external reference, REFOUT (Pin 14) must not be shorted to REFIN and should be decoupled to AGND with a 0.1-µF capacitor. Internal reference is disabled automatically when external voltage is applied.
How does the Nap mode reduce power consumption in ADS8413IRGZR?
In Nap mode (enabled by pulling NAP pin high), ADS8413IRGZR reduces analog supply current from 64 mA to 25 mA at 2 MSPS while maintaining full functionality and zero-latency operation. The device enters Nap state at conversion end and wakes instantly for the next acquisition - ideal for burst-mode systems needing thermal headroom without sacrificing timing determinism.
Can ADS8413IRGZR be used in multi-device daisy-chain configurations?
Yes, ADS8413IRGZR supports daisy-chain operation with up to four devices at 2 MSPS using MODE_C/D = 0. SDO±, CLK_O±, and SYNC_O± of each device connect directly to SDI±, CLK_I±, and SYNC_I± of the next. BUS_BUSY of Device n drives RD of Device n+1, ensuring synchronized handshaking without external logic.
What is the purpose of the LAT_Y/N pin on ADS8413IRGZR?
The LAT_Y/N pin (Pin 8) configures latency behavior: LAT_Y/N = 0 enables zero-latency read (data available immediately after conversion end), while LAT_Y/N = 1 introduces one-cycle latency. In daisy-chain mode, the first device must have LAT_Y/N = 0 to prevent timing deadlock; subsequent devices may use LAT_Y/N = 1 for simplified timing margining.
ADS8413IRGZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 2M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-VQFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS8413IRGZR FAQ
1.How can I place an order for ADS8413IRGZR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS8413IRGZR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADS8413IRGZR reliable?
The price and inventory of ADS8413IRGZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS8413IRGZR is usually 5 days.
3.What payment methods are accepted for ADS8413IRGZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS8413IRGZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS8413IRGZR?
ADS8413IRGZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS8413IRGZR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADS8413IRGZR?
For technical support, including ADS8413IRGZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS8413IRGZR requirements.
6.How does Aetrix verify that ADS8413IRGZR is sourced from the original manufacturer or authorized distributors?
All ADS8413IRGZR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS8413IRGZR meets industry standards.
7.What is the process for return or replacement of ADS8413IRGZR?
All ADS8413IRGZR units undergo pre-shipment inspection (PSI). If there is an issue with ADS8413IRGZR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADS8413IRGZR part is unused and in its original packaging.
Return procedure for ADS8413IRGZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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