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Texas Instruments ADS5522IPAPR
- Part No.:
- ADS5522IPAPR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-PowerTQFP
- Datasheet:
-
ADS5522IPAPR.pdf
- Description:
- IC ADC 12BIT PIPELINED 64HTQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADS5522IPAPR from Texas Instruments is a 12-bit, 80 MSPS analog-to-digital converter (ADC) with integrated sample-and-hold and internal voltage reference. It delivers 69.7 dBFS SNR at 100 MHz input, 83 dBc SFDR, and 2.3-VPP differential input range, operating from a single 3.3-V supply with 541 mW analog power dissipation. It targets high-speed communication receivers and base station infrastructure.
For engineers reviewing the ADS5522IPAPR datasheet, ADS5522IPAPR pinout, ADS5522IPAPR application, or ADS5522IPAPR equivalent, this page provides verified technical context, validated pin functions, confirmed spectral performance at 80 MSPS, package-locked thermal metrics (θJA = 21.47 °C/W), and two manufacturer-validated alternative ADCs for similar high-dynamic-range sampling roles.
Technical Context
The ADS5522IPAPR implements a 12-bit pipeline ADC core with on-chip linear S&H and internal reference (REFP/REFM = 2.15 V / 1 V). Its timing architecture supports 17.5-clock-cycle latency and uses a differential clock input (CLK+/CLK−) with aperture jitter of 300 fs RMS.
Digital interface includes parallel CMOS-compatible 12-bit outputs (D0–D11), serial programming via three-wire interface (SEN/SCLK/SDATA), and configurable data format (straight binary or two's complement) and CLKOUT polarity via DFS pin. Output enable (OE) and over-range indicator (OVR) support system-level synchronization and fault detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - defines quantization step size of ~0.24 mV at 2.3-VPP full-scale input. |
| Sample Rate | 80 MSPS - maximum certified conversion rate enabling Nyquist-limited bandwidth up to 40 MHz. |
| SNR @ 100 MHz fIN | 69.7 dBFS - determines minimum detectable signal level in wideband RF receiver front-ends. |
| SFDR @ 100 MHz fIN | 83 dBc - specifies largest spurious tone relative to fundamental, critical for adjacent-channel rejection. |
| Differential Input Range | 2.3 VPP - sets required drive level for external op-amps (e.g., OPA695, THS4509) without clipping. |
| Analog Power Dissipation | 541 mW - enables thermal design using θJA = 21.47 °C/W on 4-layer PCB with PowerPAD soldered to AGND. |
| Supply Voltage | 3.3 V single supply - simplifies power tree by eliminating separate analog/digital rails beyond AVDD/DRVDD decoupling. |
Pinout & Package
ADS5522IPAPR is housed in a 64-pin HTQFP PowerPAD™ package (PAP designation), with thermal pad (3.5 × 3.5 mm min) soldered to analog ground for optimal thermal performance (θJC = 2.99 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INP / INM | Differential analog input | Accepts 2.3-VPP balanced signal; requires matched 50-Ω source impedance for 750-MHz analog bandwidth. |
| CLKP / CLKM | Differential clock input | Drives sampling core; 3-VPP sine wave recommended; 50% duty cycle required for aperture jitter ≤300 fs. |
| D0–D11 | Parallel digital output | 12-bit CMOS outputs (LSB D0, MSB D11); valid on rising edge of CLKOUT when DFS = low. |
| CLKOUT | Output clock | CMOS clock synchronized to data; rise/fall times ≤2.8 ns/2.3 ns into 10-pF load. |
| OE | Output enable | Active-high control; outputs stabilize within 1000 clock cycles after assertion. |
| RESET | Asynchronous reset | Active-high; 2 µs pulse width required; internal 200-kΩ pull-up to AVDD. |
| SEN / SCLK / SDATA | Serial programming interface | 3-wire SPI-compatible bus; 16-bit words (4-bit address + 12-bit data); loads configuration registers. |
| DFS | Data format select | Configures output coding (straight binary/two's complement) and CLKOUT edge (rising/falling) via voltage threshold. |
| OVR | Over-range indicator | Active-high flag signaling input exceeds ±1.15 VPP differential range; used for AGC or saturation monitoring. |
| REFP / REFM / IREF / CM | Reference subsystem | Internal 1.15-V common-mode reference; REFP/REFM require 1-µF cap + 1-Ω resistor; IREF sets bias current via 56.2-kΩ resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated voltage reference | Eliminates external reference IC and associated layout complexity; REFP/REFM stable over –40°C to 85°C with ±4% error. |
| Low aperture jitter (300 fs) | Enables high SNR at RF frequencies (e.g., 69.7 dBFS at 100 MHz), reducing phase noise impact in undersampling architectures. |
| PowerPAD thermal package | Reduces junction-to-ambient thermal resistance to 21.47 °C/W, allowing sustained 80 MSPS operation without forced air or heatsink. |
| Configurable output format | DFS pin selects straight binary or two's complement coding and CLKOUT polarity-enabling compatibility with FPGA logic families and timing closure requirements. |
| Serial register interface | Allows runtime reconfiguration of test modes (output zero/one/toggle), power-down, and output enable without hardware changes. |
Applications
| Wireless Base Station Receiver | Radar Signal Digitization |
|---|---|
Use Scenario: Digitizing IF signals from quadrature downconverters in LTE/FDD-TDD macrocell base stations. IC Role / Device Role / Timing Role: High-speed ADC capturing 20–40 MHz bandwidth signals at 80 MSPS with <70 dBFS SNR to preserve EVM in 256-QAM modulation. Use Value: Internal reference and 2.3-VPP input range reduce external component count; PowerPAD enables compact RF card layout with minimal thermal derating. | Use Scenario: Sampling pulsed radar returns in L-band (1–2 GHz) direct-conversion receivers using undersampling techniques. IC Role / Device Role / Timing Role: 12-bit pipeline ADC providing 750-MHz analog bandwidth and 300-fs aperture jitter to maintain pulse fidelity and Doppler resolution. Use Value: 83 dBc SFDR at 100 MHz suppresses harmonics from strong clutter returns; serial interface allows dynamic gain calibration during system idle cycles. |
| Medical Ultrasound Beamformer | Test & Measurement Digitizer |
Use Scenario: Channel digitization in portable ultrasound systems requiring low-power, high-SNR acquisition of 5–15 MHz echo signals. IC Role / Device Role / Timing Role: ADC with 69.7 dBFS SNR and 17.5-cycle latency synchronizes with FPGA-based beamforming logic for real-time processing. Use Value: Single 3.3-V supply and 541 mW dissipation meet portable battery-life constraints; OVR pin flags tissue interface saturation for adaptive TGC control. | Use Scenario: Modular digitizer module in automated test equipment capturing transient waveforms up to 40 MHz bandwidth. IC Role / Device Role / Timing Role: Precision ADC delivering calibrated 12-bit linearity (±0.5 LSB DNL) and 86 dBc SFDR for waveform reconstruction accuracy. Use Value: Parallel CMOS outputs interface directly to Xilinx Kintex-7 FPGA; RESET and OE pins support precise trigger-aligned acquisition windows. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS5521IPAPR | 12-bit, 105 MSPS; higher sample rate but 0.5 dB lower SNR (69.2 dBFS @ 100 MHz) and 100 mW higher power (641 mW). | Better suited for wider instantaneous bandwidth (≥52 MHz) where SNR margin >69 dBFS is acceptable. | Select ADS5521IPAPR only if system requires >80 MSPS sampling and can accommodate increased thermal load. |
| ADS5542IPAPR | 14-bit, 80 MSPS; 2-bit higher resolution yields ~12 dB better theoretical SNR, but measured SNR = 73.5 dBFS @ 100 MHz and power = 720 mW. | Ideal for applications needing enhanced dynamic range (e.g., spectrum analyzers) where 14-bit linearity justifies extra power and cost. | Choose ADS5542IPAPR when ENOB >11.5 bits is mandatory and system power budget allows +180 mW. |
Compared with ADS5522IPAPR, ADS5521IPAPR trades SNR for speed while ADS5542IPAPR trades power and cost for resolution-making ADS5522IPAPR the optimal balance of 12-bit fidelity, 80 MSPS throughput, and 541 mW efficiency in space-constrained RF receivers.
Availability
ADS5522IPAPR is available at Aetrix Electronics and suitable for wireless infrastructure, radar signal processing, and medical ultrasound systems requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for ADS5522IPAPR 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 high-performance data converters.
The ADS5500 product family-including ADS5522IPAPR-is designed for demanding communications and instrumentation applications requiring high-speed, high-dynamic-range digitization in compact thermal packages.
FAQ
What is the absolute maximum clock input voltage for ADS5522IPAPR?
The absolute maximum differential clock amplitude for ADS5522IPAPR is 3.7 VPP. Exceeding this risks permanent damage to the CLKP/CLKM input stage. The recommended operating condition is 1–3 VPP sine wave with 50% duty cycle. TI specifies that operation above 3 VPP requires verification of slew rate and harmonic content to avoid violating the 3.7-VPP stress limit across temperature and process corners.
Does ADS5522IPAPR support daisy-chained serial programming?
No, ADS5522IPAPR does not support daisy-chaining. Its three-wire serial interface (SEN/SCLK/SDATA) is point-to-point only. Each ADS5522IPAPR requires dedicated SEN, SCLK, and SDATA connections to the controller. The interface latches data on the falling edge of SCLK while SEN is low, and accepts 16-bit words (4-bit address + 12-bit data); multiple devices must be controlled individually.
What is the purpose of the IREF pin on ADS5522IPAPR?
The IREF pin on ADS5522IPAPR sets internal bias current for the reference circuitry. It requires a 56.2-kΩ resistor connected to AGND-no capacitors allowed. This resistor establishes the 1.15-V common-mode voltage (CM) and stabilizes REFP/REFM (2.15 V / 1 V). Deviation from 56.2 kΩ alters reference accuracy and may degrade SNR or cause code-dependent offset drift.
Can ADS5522IPAPR operate with separate analog and digital grounds?
Yes, ADS5522IPAPR separates analog (AGND) and digital (DRGND) grounds, but they must be connected at a single point near the PowerPAD thermal pad. TI's layout guidelines require AGND and DRGND planes to remain isolated except at this star point to prevent digital switching noise from coupling into the analog path. The PowerPAD itself is internally connected to AGND, making proper grounding essential for achieving 69.7 dBFS SNR.
How does the OVR pin behave during input overload on ADS5522IPAPR?
The OVR pin on ADS5522IPAPR asserts high within one clock cycle when either INP or INM exceeds the ±1.15 VPP common-mode range (i.e., differential input >2.3 VPP). It remains asserted until the input returns within range for ≥10 consecutive samples. This behavior enables real-time AGC loop response or FPGA-based saturation flagging without software polling of output codes.
ADS5522IPAPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-PowerTQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Pipelined
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 3V ~ 3.6V
- Voltage - Supply, Digital:
- 3V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-HTQFP (10x10)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS5522IPAPR FAQ
1.How can I place an order for ADS5522IPAPR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS5522IPAPR 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 ADS5522IPAPR reliable?
The price and inventory of ADS5522IPAPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS5522IPAPR is usually 5 days.
3.What payment methods are accepted for ADS5522IPAPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS5522IPAPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS5522IPAPR?
ADS5522IPAPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS5522IPAPR 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 ADS5522IPAPR?
For technical support, including ADS5522IPAPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS5522IPAPR requirements.
6.How does Aetrix verify that ADS5522IPAPR is sourced from the original manufacturer or authorized distributors?
All ADS5522IPAPR 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 ADS5522IPAPR meets industry standards.
7.What is the process for return or replacement of ADS5522IPAPR?
All ADS5522IPAPR units undergo pre-shipment inspection (PSI). If there is an issue with ADS5522IPAPR, 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 ADS5522IPAPR part is unused and in its original packaging.
Return procedure for ADS5522IPAPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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