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Texas Instruments ADS5482IRGC25
- Part No.:
- ADS5482IRGC25
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
ADS5482IRGC25.pdf
- Description:
- IC ADC 16BIT PIPELINED 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,839
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Product details
Overview
ADS5482IRGC25 from Texas Instruments is a 16-bit, 105-MSPS analog-to-digital converter (ADC) with LVDS-compatible DDR outputs, internal high-impedance analog buffer, and dual-supply operation (5 V AVDD5 / 3.3 V AVDD3). It delivers 78.6 dBFS SNR at 70 MHz input and 95 dBc SFDR at 70 MHz/105 MSPS, targeting high-fidelity signal acquisition in wireless infrastructure and test instrumentation.
For engineers reviewing the ADS5482IRGC25 datasheet, ADS5482IRGC25 pinout, ADS5482IRGC25 application, or ADS5482IRGC25 equivalent, key selection considerations include its 105-MSPS sampling rate, 16-bit resolution, QFN-64 PowerPAD package, dither-enabled spurious suppression, and industrial temperature range (–40°C to +85°C).
Technical Context
The ADS5482IRGC25 employs a complementary bipolar (BiCom3) process and integrates an on-chip analog input buffer to isolate the track-and-hold stage from source impedance effects. Its internal reference generator provides a stable 1.2-V reference and configurable 3.1-V common-mode output (VCM).
It uses differential LVDS DDR outputs with 8-bit even/odd interleaving per pair (e.g., D0_1_P/M), supports dither activation via DITHER pin, and offers two power-down modes-light sleep (600 µs wakeup, 680 mW) and deep sleep (6 ms wakeup, 70 mW)-controlled by PDWNF and PDWNS pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16 bits - enables high dynamic range digitization of wideband RF and IF signals |
| Max Sampling Rate | 105 MSPS - supports Nyquist sampling of signals up to 52.5 MHz baseband or undersampling of higher IFs |
| SNR @ 70 MHz | 78.6 dBFS - ensures >12.8 ENOB for accurate amplitude fidelity in demanding receiver chains |
| SFDR @ 70 MHz | 95 dBc - suppresses spurs critical for multi-carrier GSM/WCDMA/LTE coexistence |
| Total Power Dissipation | 2.2 W (typ) - balanced performance for thermally constrained RF front-end PCB layouts |
| Analog Input Bandwidth | 125 MHz (–3 dB) - accommodates direct IF sampling up to 100 MHz without external filtering |
| Operating Temperature | –40°C to +85°C - qualified for deployment in outdoor base stations and industrial test equipment |
Pinout & Package
The ADS5482IRGC25 is housed in a QFN-64 PowerPAD™ package (9 mm × 9 mm footprint) with exposed thermal pad (Pin 65 = AGND) for enhanced heat dissipation. Pin functions are validated per TI SLAS565C Rev. October 2009.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INP / INM (11, 12) | Differential analog input | High-impedance buffered inputs accepting 3-VPP differential signal; self-biased to 3.1 V common mode |
| CLKP / CLKM (21, 22) | Differential clock input | Accepts 3-VPP sine wave; 50% duty cycle required; aperture jitter = 80 fs rms |
| DRY_P / DRY_M (53, 54) | Data-ready strobe (LVDS) | DDR-aligned LVDS clock-out synchronized to data edges; latency = 5 clock cycles |
| Dx_y_P / Dx_y_M (e.g., 43–44, 61–62) | DDR LVDS data outputs | Even/Odd bit pairs (e.g., D0_1 = bits 0 & 1); 100-Ω differential load; VOD = 247–454 mV |
| PDWNF / PDWNS (34, 35) | Power-down control | PDWNF = light sleep (fast wake); PDWNS = deep sleep (ultra-low 70 mW); both high = full shutdown |
| VCM (16) | Analog common-mode output | Provides 3.1-V reference for external ADC driver biasing; eliminates need for external resistor divider |
Key Features
| Feature | Design Value |
|---|---|
| Internal analog input buffer | High-impedance (>1 kΩ) interface isolates sensitive T&H stage from source reactance and layout parasitics |
| Dither enable (DITHER pin) | Reduces harmonic distortion and improves SFDR by randomizing quantization noise floor |
| LVDS DDR outputs | Halves data rate per lane vs. SDR; reduces timing skew and EMI in high-speed digital interfaces |
| Two-tier power-down | Light sleep (680 mW, 600 µs wake) and deep sleep (70 mW, 6 ms wake) support dynamic power management |
| On-chip voltage reference | 1.2-V internal reference and 3.1-V VCM output simplify system-level analog design and reduce BOM count |
Applications
| Wireless Base Station Receiver | RF Test Equipment Front End |
|---|---|
Use Scenario: Digitizing multi-carrier WCDMA/LTE IF signals at 70–90 MHz in macrocell BTS transceivers. IC Role / Device Role / Timing Role: High-SNR, high-SFDR ADC capturing wide instantaneous bandwidth with minimal spurious content. Use Value: 95 dBc SFDR at 70 MHz enables simultaneous reception of adjacent carriers without intermodulation masking. | Use Scenario: Capturing transient RF bursts and modulated waveforms in vector signal analyzers and spectrum monitors. IC Role / Device Role / Timing Role: Precision digitizer with low aperture jitter (80 fs rms) preserving phase integrity of fast-varying signals. Use Value: 78.6 dBFS SNR and 12.8 ENOB ensure accurate EVM and ACLR measurements across 105-MSPS capture windows. |
| Software-Defined Radio (SDR) Platform | Radar Signal Acquisition |
Use Scenario: Reconfigurable IF sampling in military/commercial SDRs supporting multiple waveform standards. IC Role / Device Role / Timing Role: Flexible ADC with programmable power states (light/deep sleep) and dither control for adaptive processing. Use Value: Dual-supply (5 V/3.3 V) and LVDS DDR interface simplify integration with FPGA-based digital backends. | Use Scenario: Pulse-Doppler radar digitization of 100+ MHz IF returns in airborne and ground-based systems. IC Role / Device Role / Timing Role: Wideband ADC with 125-MHz analog input bandwidth enabling direct sampling of L/S-band IFs. Use Value: 105-MSPS rate and 16-bit resolution support high-range-resolution pulse compression without interpolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS5483IRGC25 | Higher max sampling rate (135 MSPS); slightly lower SNR (77.4 dBFS @ 70 MHz) and SFDR (91 dBc @ 70 MHz) | Better suited for wider instantaneous bandwidth capture (e.g., >65 MHz IF), but higher power (2.35 W) | Select when sampling rate >105 MSPS is mandatory and thermal/power budget allows |
| ADS5481IRGC25 | Lower max sampling rate (80 MSPS); higher SNR (80.1 dBFS @ 70 MHz) and SFDR (93 dBc @ 70 MHz) | Optimized for ultra-low-noise IF sampling where bandwidth ≤40 MHz suffices | Select when priority is maximum SNR/SFDR at lower speed and reduced power (2.15 W) |
Compared with ADS5483IRGC25 and ADS5481IRGC25, the ADS5482IRGC25 strikes a balance: it delivers 105 MSPS sampling with 78.6 dBFS SNR and 95 dBc SFDR at 2.2 W-making it optimal for mid-bandwidth, thermally constrained wireless and instrumentation designs requiring proven performance at 70–90 MHz.
Availability
ADS5482IRGC25 is available at Aetrix Electronics and suitable for wireless infrastructure, test and measurement instrumentation, and software-defined radio applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADS5482IRGC25 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.
The ADS548x family was designed for high-ENOB, low-noise, wideband digitization in communications infrastructure and precision instrumentation-emphasizing spurious-free dynamic range and robust analog input buffering.
FAQ
What is the maximum sampling rate supported by the ADS5482IRGC25?
The ADS5482IRGC25 supports a maximum sampling rate of 105 MSPS, as specified in the Electrical Characteristics table of the SLAS565C datasheet. This rate is fully characterized over the industrial temperature range (–40°C to +85°C) with AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, and 50% clock duty cycle. Operation above this rate is not guaranteed and may degrade SNR or SFDR performance.
Does the ADS5482IRGC25 require an external reference voltage?
No, the ADS5482IRGC25 includes an internal 1.2-V reference and a 3.1-V analog common-mode output (VCM) on Pin 16. External reference is optional: pulling both PDWNF and PDWNS high disables the internal reference, allowing use of an external source via the REF pin (Pin 4). The internal reference is sufficient for most applications and simplifies system design.
How does the dither function improve performance in the ADS5482IRGC25?
The dither function in the ADS5482IRGC25-enabled by asserting the DITHER pin (Pin 36) high-injects controlled noise to randomize quantization error, reducing harmonic distortion and improving SFDR by up to 6 dB at medium input amplitudes. As shown in Figure 6 and Figure 7 of SLAS565C, dither significantly lowers dominant spurs while maintaining SNR within 0.2 dB, making it valuable for multi-tone and wideband signal capture.
What are the power-down modes available on the ADS5482IRGC25?
The ADS5482IRGC25 offers two hardware-controlled power-down modes: light sleep (PDWNF = high, PDWNS = low) draws 680 mW and wakes in 600 µs; deep sleep (PDWNF = low, PDWNS = high) draws 70 mW and wakes in 6 ms. Both modes retain register state. Full shutdown occurs when both PDWNF and PDWNS are high. These modes are documented in Table 1 and Section 7.5 of SLAS565C.
Is the ADS5482IRGC25 pin-compatible with other devices in the ADS548x family?
Yes, the ADS5482IRGC25 is pin-compatible with ADS5481IRGC25 and ADS5483IRGC25 in the QFN-64 RGC package. All share identical pinout, power sequencing, and interface signaling-including LVDS DDR data format, DRY strobe, and control pin assignments (PDWNF, PDWNS, DITHER, VCM, REF). This enables drop-in replacement across the family for sampling rate optimization without PCB redesign.
ADS5482IRGC25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 105M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 3.1V ~ 3.6V, 5V
- Voltage - Supply, Digital:
- 3V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-VQFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS5482IRGC25 FAQ
1.How can I place an order for ADS5482IRGC25 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS5482IRGC25 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 ADS5482IRGC25 reliable?
The price and inventory of ADS5482IRGC25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS5482IRGC25 is usually 5 days.
3.What payment methods are accepted for ADS5482IRGC25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS5482IRGC25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS5482IRGC25?
ADS5482IRGC25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS5482IRGC25 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 ADS5482IRGC25?
For technical support, including ADS5482IRGC25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS5482IRGC25 requirements.
6.How does Aetrix verify that ADS5482IRGC25 is sourced from the original manufacturer or authorized distributors?
All ADS5482IRGC25 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 ADS5482IRGC25 meets industry standards.
7.What is the process for return or replacement of ADS5482IRGC25?
All ADS5482IRGC25 units undergo pre-shipment inspection (PSI). If there is an issue with ADS5482IRGC25, 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 ADS5482IRGC25 part is unused and in its original packaging.
Return procedure for ADS5482IRGC25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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