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Analog Devices Inc. LTC2201IUK#TRPBF
- Part No.:
- LTC2201IUK#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2201IUK#TRPBF.pdf
- Description:
- IC ADC 16BIT PIPELINED 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,279
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Product details
Overview
LTC2201IUK#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 20Msps pipelined analog-to-digital converter with differential input, PGA front end, and CMOS parallel outputs. It delivers 81.6dB SNR and 100dB SFDR at 1MHz (2.5V input range), supports up to 380MHz full-power bandwidth, and operates from a single 3.3V supply. It is used in high-performance receivers, spectrum analyzers, and cellular base station digitization chains.
For engineers reviewing the LTC2201IUK#TRPBF datasheet, LTC2201IUK#TRPBF pinout, LTC2201IUK#TRPBF application, or LTC2201IUK#TRPBF equivalent, key selection factors include its –40°C to +85°C industrial temperature grade, 48-pin 7mm × 7mm QFN package, programmable gain amplifier (1×/1.5×), optional internal dither, and clock duty cycle stabilizer for robust timing margin.
Technical Context
The LTC2201IUK#TRPBF implements a five-stage pipelined ADC architecture with integrated sample-and-hold, correction logic, and shift register output staging. Its front-end PGA allows dynamic selection between 2.5VP-P and 1.667VP-P input ranges, while the internal 2.5V bandgap reference (selected via SENSE pin) ensures stable full-scale calibration.
It features separate analog (VDD) and digital output (OVDD) supplies - enabling CMOS output swing from 0.5V to 3.6V - and includes dedicated control pins for shutdown (SHDN), dither enable (DITH), output format/clock stabilization (MODE), and data randomization (RAND), supporting flexible system-level integration in wideband RF sampling applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and deterministic code mapping across full dynamic range. |
| Sample Rate | 20Msps - enables real-time digitization of signals up to 10MHz Nyquist bandwidth without undersampling. |
| SNR | 81.6dBFS at 1MHz (2.5V range, PGA=0) - supports >13 effective bits for high-fidelity signal capture. |
| SFDR | 100dBc at 1MHz (2.5V range, PGA=0) - suppresses spurious content critical for spectral purity in communications receivers. |
| Full-Power BW | 380MHz - allows accurate digitization of wideband IF signals up to 380MHz without amplitude roll-off. |
| INL / DNL | ±5LSB / ±1LSB - ensures linearity integrity for precision measurement and calibration-critical systems. |
| Power Dissipation | 211mW at 20Msps - balances performance and thermal load in dense RF front-end layouts. |
Pinout & Package
Package: 48-lead (7mm × 7mm) plastic QFN with exposed pad (Pin 49 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– | Differential analog input | Accepts ±0.625V (2.5V range) or ±0.417V (1.667V range) around 1.25V common-mode; requires matched drive for harmonic suppression. |
| CLK | Sampling clock input | Falling edge initiates hold phase; rising edge may latch data; supports duty cycle stabilizer when MODE configured. |
| D0–D15 | CMOS parallel data outputs | 16-bit MSB-first offset binary or 2's complement (configurable via MODE); output voltage swing set by OVDD (0.5–3.6V). |
| CLKOUT+, CLKOUT– | Data valid strobes | Differential pair toggling at sample rate; used to latch D0–D15 on rising/falling edges - reduces timing skew vs. single-ended CLK. |
| PGA, MODE, DITH, RAND, OE, SHDN | Configuration control inputs | Set gain (1×/1.5×), output format, dither enable, data randomization, output enable, and power-down state - all TTL/CMOS compatible. |
| VCM | 1.25V common-mode bias output | Provides precise DC level for transformer-coupled or op-amp-driven differential inputs; must be bypassed with ≥2.2μF capacitor. |
| SENSE | Reference mode select | Tie to VDD for internal 2.5V reference; accepts external 1.25V or 2.5V reference - sets full-scale range independent of PGA setting. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Gain Amplifier | Configurable 1× (2.5VP-P input) or 1.5× (1.667VP-P input) front end - adapts dynamic range to signal amplitude without external amplification. |
| Internal Dither | Reduces harmonic distortion and improves SFDR by >10dB at low input levels - enabled via DITH pin for demanding spectral analysis. |
| Output Randomizer | XOR-based bit scrambling (D1–D15 with D0) minimizes deterministic digital switching noise coupling into analog sections. |
| Clock Duty Cycle Stabilizer | Compensates for non-50% clock duty cycles - maintains AC performance at full 20Msps without external clock conditioning circuitry. |
| Out-of-Range Indicator | OF pin asserts high on over/underflow - enables real-time saturation detection for AGC or signal monitoring loops. |
Applications
| Communications Receiver | Spectrum Analyzer Front End |
|---|---|
Use Scenario: Digitizing 70MHz IF signals in LTE/FDD base station receivers with >70dB adjacent channel rejection. IC Role / Device Role / Timing Role: Primary ADC capturing wideband IF samples for digital downconversion and channel filtering in FPGA-based radio processing. Use Value: 380MHz full-power bandwidth and 100dB SFDR ensure minimal distortion and aliasing during multi-carrier signal capture. | Use Scenario: High-resolution frequency-domain analysis of RF emissions from 1MHz to 100MHz in benchtop and portable analyzers. IC Role / Device Role / Timing Role: Core digitizer feeding FFT engine; synchronized via CLKOUT+/- to minimize jitter-induced spectral smearing. Use Value: 81.6dB SNR and optional internal dither enable sub-0.1dB amplitude accuracy across dynamic range. |
| ATE Digital Pattern Generator | Imaging System Digitizer |
Use Scenario: Capturing high-speed digital waveform responses in automated test equipment for ASIC validation. IC Role / Device Role / Timing Role: High-fidelity acquisition of transient logic-level transitions and eye-diagram margins at 20Msps. Use Value: ±1LSB DNL and pipeline latency of exactly 7 cycles allow deterministic timing alignment with pattern generators. | Use Scenario: Converting analog video or medical ultrasound beamformer outputs requiring >12 ENOB fidelity. IC Role / Device Role / Timing Role: Parallel-output ADC interfacing directly to image processor bus; powered from single 3.3V rail to simplify power tree. Use Value: 211mW power at 20Msps and 7mm × 7mm QFN footprint support compact, thermally constrained imaging modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS5463IPFP | 16-bit, 500Msps, JESD204B serial output; higher power (1.8W); no PGA; requires external reference. | Targets ultra-wideband direct RF sampling (>100MHz IF), not medium-band IF digitization. | Select when >100Msps sample rate and serial interface are required; avoid if parallel CMOS interface and low power are mandatory. |
| LTC2203IUK#TRPBF | 16-bit, 25Msps, same pinout and feature set; 5Msps faster; identical INL/SFDR specs; same 48-QFN package. | Drop-in speed upgrade path within same PCB layout and firmware framework. | Choose for marginal timing margin improvement without redesign; verify clock distribution and power delivery at 25Msps. |
Compared with ADS5463IPFP, LTC2201IUK#TRPBF offers lower power and simpler parallel interface but lacks serial output and raw speed; compared with LTC2203IUK#TRPBF, it trades 5Msps for proven thermal stability at lower dissipation in industrial environments.
Availability
LTC2201IUK#TRPBF is available at Aetrix Electronics and suitable for cellular base stations, spectrum analyzers, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2201IUK#TRPBF 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
Analog Devices, Inc. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2201IUK#TRPBF belongs to ADI's high-speed precision ADC product line, designed specifically for wideband IF digitization in communications infrastructure where SNR, SFDR, and thermal stability are critical.
FAQ
What is the operating temperature range of the LTC2201IUK#TRPBF?
The LTC2201IUK#TRPBF is rated for industrial operation from –40°C to +85°C. This extended range ensures reliable performance in base station outdoor units, portable spectrum analyzers, and factory-floor ATE systems where ambient temperatures exceed commercial-grade limits. The specification is validated per the Absolute Maximum Ratings table and confirmed in the Order Information section of the datasheet.
Does the LTC2201IUK#TRPBF require an external reference voltage?
No, the LTC2201IUK#TRPBF includes an internal 2.5V bandgap reference. When the SENSE pin is tied to VDD (≤1kΩ), the device uses this internal reference to set full-scale range. An external 1.25V or 2.5V reference may be applied to SENSE for improved accuracy or system-level reference synchronization - but it is not required for basic operation of the LTC2201IUK#TRPBF.
How does the PGA function affect input range and noise performance in the LTC2201IUK#TRPBF?
The PGA in the LTC2201IUK#TRPBF selects between two differential input ranges: 2.5VP-P (PGA = low) and 1.667VP-P (PGA = high). At PGA = high, gain increases 1.5×, reducing full-scale voltage but maintaining SNR within 2.2dB (79.4dB vs. 81.6dB) - enabling better utilization of small-amplitude signals without clipping. This trade-off is documented in the Dynamic Accuracy tables for both ranges.
Can the LTC2201IUK#TRPBF operate with a non-50% clock duty cycle?
Yes - the LTC2201IUK#TRPBF includes an optional clock duty cycle stabilizer activated by configuring the MODE pin to 1/3VDD or 2/3VDD. When enabled, it corrects duty cycle deviations and maintains full 20Msps AC performance (e.g., 81.6dB SNR) even with input clocks ranging from 40% to 60% duty cycle, eliminating need for external duty-cycle correction circuits in the LTC2201IUK#TRPBF design.
What is the purpose of the RAND pin on the LTC2201IUK#TRPBF?
The RAND pin on the LTC2201IUK#TRPBF enables digital output randomization: when asserted high, bits D1–D15 are XORed with D0 (LSB), scrambling output patterns to reduce deterministic EMI from repetitive digital switching. The original data can be recovered by reapplying the same XOR operation - a technique used to lower radiated emissions in sensitive RF-adjacent layouts using the LTC2201IUK#TRPBF.
LTC2201IUK#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 20M
- 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:
- External, Internal
- Voltage - Supply, Analog:
- 3.135V ~ 3.465V
- Voltage - Supply, Digital:
- 3.135V ~ 3.465V
- Features:
- PGA
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-QFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2201IUK#TRPBF FAQ
1.How can I place an order for LTC2201IUK#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2201IUK#TRPBF 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 LTC2201IUK#TRPBF reliable?
The price and inventory of LTC2201IUK#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2201IUK#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2201IUK#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2201IUK#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2201IUK#TRPBF?
LTC2201IUK#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2201IUK#TRPBF 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 LTC2201IUK#TRPBF?
For technical support, including LTC2201IUK#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2201IUK#TRPBF requirements.
6.How does Aetrix verify that LTC2201IUK#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2201IUK#TRPBF 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 LTC2201IUK#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2201IUK#TRPBF?
All LTC2201IUK#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2201IUK#TRPBF, 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 LTC2201IUK#TRPBF part is unused and in its original packaging.
Return procedure for LTC2201IUK#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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