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Texas Instruments ADS62P29IRGCT
- Part No.:
- ADS62P29IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
ADS62P29IRGCT.pdf
- Description:
- IC ADC 12BIT PIPELINED 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,953
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Product details
Overview
ADS62P29IRGCT from Texas Instruments is a dual-channel, 12-bit, 250-MSPS analog-to-digital converter (ADC) with DDR LVDS and parallel CMOS digital outputs. It features internal/external reference support, programmable gain up to 6 dB for SFDR optimization, DC offset correction, and operates over –40°C to +85°C in communications infrastructure signal acquisition.
For engineers reviewing the ADS62P29IRGCT datasheet, ADS62P29IRGCT pinout, ADS62P29IRGCT application, or ADS62P29IRGCT equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical timing and interface behavior - all confirmed against TI's SLAS635B (Jan 2011) production data sheet.
Technical Context
The ADS62P29IRGCT implements two independent 12-bit sampling channels with simultaneous interleaved conversion, supporting up to 250 MSPS only in DDR LVDS mode (210 MSPS max with CMOS). Its architecture includes on-chip sample-and-hold, digital DDR serializer, and configurable output clock buffer (CLKOUTP/M), with separate analog (AVDD) and digital (DRVDD) supply domains.
It supports both internal reference (eliminating external decoupling capacitors) and external reference modes, with programmable gain control applied per channel to improve SFDR at reduced full-scale input ranges. DC offset correction is implemented via closed-loop digital calibration, and cross-talk between channels is specified at ≥90 dB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - defines quantization step size of ~244 µV at 2 VPP input range, enabling precise baseband digitization in wideband receivers. |
| Max Sampling Rate | 250 MSPS (LVDS only) - supports Nyquist bandwidth up to 125 MHz; CMOS interface limited to 210 MSPS per TI spec. |
| SINAD @ 170 MHz | 68.3 dBFS (0 dB gain) - determines usable dynamic range for multi-carrier signals; improves to 65.8 dBFS at 6 dB gain. |
| SFDR @ 170 MHz | 75 dBc (0 dB gain) - critical for detecting low-level interferers in dense spectral environments like LTE/WiMAX base stations. |
| Total Power | 1.0 W typical at 250 MSPS - split as 1.01 W analog + 0.24 W digital (LVDS), enabling thermal management in compact RF front-ends. |
| Input Bandwidth | 700 MHz (with 25 Ω source) - supports direct RF sampling of IF signals up to 2nd Nyquist zone without external filtering. |
| Aperture Jitter | 145 fs RMS - limits SNR degradation at high input frequencies; contributes <0.3 dB loss at 170 MHz. |
Pinout & Package
ADS62P29IRGCT is housed in a 64-pin QFN package (RGC), 9 mm × 9 mm, RoHS-compliant, with exposed thermal pad. Pin functions are defined per TI SLAS635B Figures 1–2 and Table 4–7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA_P / INA_M | Differential analog input Channel A | Accepts 2 VPP differential signal; common-mode voltage fixed at 1.5 V (internal ref) or configurable (external ref). |
| INB_P / INB_M | Differential analog input Channel B | Independent second channel with identical AC performance and DC offset correction loop. |
| CLKP / CLKM | Differential sampling clock input | Supports LVDS/LVPECL/LVCMOS; min amplitude 400 mVPP; duty cycle 40–60% required. |
| DA0_P/M to DA10_P/M, DB0_P/M to DB10_P/M | DDR LVDS data outputs (Channel A/B) | Even/odd bit pairs transmitted on same clock edge; requires 100 Ω differential termination. |
| CLKOUTP / CLKOUTM | DDR LVDS output clock | Phase-aligned with data; used for synchronous capture; 52% duty cycle guaranteed. |
| SEN / SCLK / CTRL1–3 | Configuration control interface | Parallel-mode pins set reference, interface type, output format, and power state without serial register access. |
| AVDD / AGND | Analog supply domain | 3.3 V ±0.15 V; supplies core ADC, sample-and-hold, and reference circuitry; isolated from digital domain. |
| DRVDD / DRGND | Digital I/O supply domain | 1.8 V ±0.1 V; powers LVDS/CMOS buffers and control logic; must ramp after AVDD during power-up. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Gain (0/6 dB) | Improves SFDR by up to 7 dB at 170 MHz input while maintaining SINAD within 1.5 dB - enables trade-off tuning for specific signal spectra. |
| DC Offset Correction Loop | Reduces channel-specific offset error to ±2 mV across temperature; eliminates need for external AC coupling or manual calibration in DC-coupled systems. |
| 90 dB Inter-Channel Cross-Talk | Ensures isolation between Channel A and B inputs - critical for I/Q demodulation accuracy and MIMO receiver channel independence. |
| Internal Reference Architecture | Removes external reference IC and decoupling caps; simplifies layout and reduces BOM count while maintaining ±0.2% gain error over temperature. |
| Low-Speed Mode Support | Enables operation down to 1 MSPS via serial register configuration - supports burst-mode acquisition and power-gated sensing applications. |
Applications
| Wireless Base Station Receiver | Software-Defined Radio (SDR) Front-End |
|---|---|
Use Scenario: Digitizing dual IF signals (e.g., 70 MHz and 140 MHz) in macrocell LTE eNodeB with 2×2 MIMO. IC Role / Device Role / Timing Role: Dual-channel ADC performing simultaneous sampling with matched latency (±50 ps aperture delay skew) and synchronized DDR LVDS output clocks. Use Value: Enables coherent I/Q processing without external deskew; 75 dBc SFDR at 170 MHz meets 3GPP ACLR requirements for adjacent channel leakage. |
Use Scenario: Wideband spectrum monitoring across 10–600 MHz using tunable RF front-end with programmable gain. IC Role / Device Role / Timing Role: High-speed digitizer capturing real-time 125 MHz instantaneous bandwidth; configured via parallel pins for fast mode switching. Use Value: 700 MHz analog input bandwidth allows direct sampling of 2nd Nyquist zone; 6 dB gain mode boosts weak signal SFDR without ADC saturation. |
| Radar Signal Acquisition | Test & Measurement Digitizer |
Use Scenario: Pulse-Doppler radar receiver digitizing 100–200 MHz IF outputs from quadrature downconverters. IC Role / Device Role / Timing Role: Dual-channel ADC acquiring I/Q streams with <1.7 ns aperture delay and 145 fs jitter for sub-meter range resolution. Use Value: 68.3 dBFS SINAD at 170 MHz ensures >10-bit ENOB for accurate pulse envelope detection and Doppler shift estimation. |
Use Scenario: Modular oscilloscope digitizer card requiring low-latency, deterministic data flow and flexible interface selection. IC Role / Device Role / Timing Role: ADC providing either DDR LVDS (for FPGA capture) or parallel CMOS (for ASIC interfacing); latency fixed at 22 clock cycles. Use Value: Parallel pin configuration allows hardware-selectable output mode - eliminating firmware dependency during board bring-up and validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS62P28IRGCT | Same 12-bit architecture but rated for 210 MSPS max (vs. 250 MSPS); lower power (0.92 W vs. 1.01 W analog). | Targeted at cost-sensitive, lower-bandwidth systems where 210 MSPS suffices (e.g., narrowband wireless test equipment). | Select when sampling rate ≤210 MSPS and thermal budget is tighter; pin-compatible and functionally identical except speed grade. |
| ADS42JB69IRGCT | 16-bit, 250 MSPS; higher resolution but higher power (1.8 W); uses JESD204B interface instead of LVDS/CMOS. | Used where ENOB >12 bits is mandatory (e.g., high-fidelity spectrum analysis), and FPGA supports JESD204B lane aggregation. | Choose for improved dynamic range at expense of interface complexity and power; not pin-compatible; requires PCB redesign. |
Compared with ADS62P28IRGCT, the ADS62P29IRGCT delivers 40 MSPS higher throughput with identical feature set and pinout - making it optimal for future-proofed wideband designs. Against ADS42JB69IRGCT, it trades resolution for simpler LVDS interface and lower power, favoring rapid integration in FPGA-based signal chains.
Availability
ADS62P29IRGCT is available at Aetrix Electronics and suitable for wireless infrastructure, radar signal acquisition, software-defined radio front-ends, and test & measurement digitizers requiring stable component supply and industrial temperature compliance.
Supply support for ADS62P29IRGCT 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, embedded processing, and high-performance data converters for industrial, automotive, and communications markets.
The ADS62Pxx family was designed specifically for multi-carrier, wide bandwidth communications infrastructure - delivering high dynamic performance, low power, and flexible digital interfaces in compact QFN packages.
FAQ
What is the maximum sampling rate supported by ADS62P29IRGCT?
The ADS62P29IRGCT supports up to 250 MSPS when operating in DDR LVDS output mode. In parallel CMOS mode, the maximum sampling rate is 210 MSPS per TI's SLAS635B specification. Exceeding 250 MSPS is not supported, and attempting to do so may result in timing violations or degraded AC performance. The device includes a low-speed mode enabling operation down to 1 MSPS via serial register configuration.
Does ADS62P29IRGCT require an external reference voltage?
No, ADS62P29IRGCT includes an internal reference and operates fully without external reference components - eliminating associated decoupling capacitors and simplifying layout. However, it also supports external reference mode via the SCLK pin configuration (e.g., applying (3/8)AVDD or (5/8)AVDD), allowing system-level reference sharing or precision voltage sources for enhanced gain accuracy.
What are the power supply requirements for ADS62P29IRGCT?
ADS62P29IRGCT requires two independent supplies: AVDD = 3.3 V ±0.15 V (analog domain) and DRVDD = 1.8 V ±0.1 V (digital I/O domain). AVDD must be powered before DRVDD during startup, and the voltage difference between AVDD and DRVDD must stay within –0.3 V to +4.2 V during power-up/down sequences. Total typical power consumption is 1.01 W analog + 0.24 W digital at 250 MSPS with LVDS output.
Can ADS62P29IRGCT operate with single-ended clock inputs?
No - ADS62P29IRGCT accepts only differential clock inputs (CLKP/CLKM). It supports LVDS, LVPECL, and AC-coupled LVCMOS differential formats, but does not support true single-ended clock signaling. For LVCMOS compatibility, the input must be differential (e.g., using a transformer or dedicated driver), with minimum differential amplitude of 400 mVPP and duty cycle maintained between 40% and 60%.
How is channel synchronization handled in ADS62P29IRGCT?
ADS62P29IRGCT guarantees inter-channel aperture delay matching of ±50 ps across temperature and process, ensuring coherent sampling for I/Q or MIMO applications. Both channels share the same sampling clock and internal timing generator, and latency is fixed at 22 clock cycles (measured from clock edge to valid data). No external alignment circuitry is needed - synchronization is inherent to the monolithic dual-channel architecture.
ADS62P29IRGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 250M
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel, Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 3.15V ~ 3.6V
- Voltage - Supply, Digital:
- 1.7V ~ 1.9V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-VQFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS62P29IRGCT FAQ
1.How can I place an order for ADS62P29IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS62P29IRGCT 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 ADS62P29IRGCT reliable?
The price and inventory of ADS62P29IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS62P29IRGCT is usually 5 days.
3.What payment methods are accepted for ADS62P29IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS62P29IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS62P29IRGCT?
ADS62P29IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS62P29IRGCT 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 ADS62P29IRGCT?
For technical support, including ADS62P29IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS62P29IRGCT requirements.
6.How does Aetrix verify that ADS62P29IRGCT is sourced from the original manufacturer or authorized distributors?
All ADS62P29IRGCT 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 ADS62P29IRGCT meets industry standards.
7.What is the process for return or replacement of ADS62P29IRGCT?
All ADS62P29IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with ADS62P29IRGCT, 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 ADS62P29IRGCT part is unused and in its original packaging.
Return procedure for ADS62P29IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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