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Analog Devices Inc. LTC2250IUH#TRPBF
- Part No.:
- LTC2250IUH#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
LTC2250IUH#TRPBF.pdf
- Description:
- IC ADC 10BIT PIPELINED 32QFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,839
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Product details
Overview
LTC2250IUH#TRPBF from Analog Devices (formerly Linear Technology) is a 10-bit, 105Msps low-noise pipelined analog-to-digital converter designed for high-frequency signal digitization in demanding communications and imaging systems. It operates from a single 3V supply (2.85V–3.4V), delivers 61.6dB SNR and 85dB SFDR at Nyquist, supports flexible ±0.5V to ±1V differential input range, and features a 640MHz full-power bandwidth sample-and-hold stage.
For engineers reviewing the LTC2250IUH#TRPBF datasheet, LTC2250IUH#TRPBF pinout, LTC2250IUH#TRPBF application, or LTC2250IUH#TRPBF equivalent, this page provides verified specifications, validated pin functions, real-world use cases in ultrasound and spectral analysis, and confirmed alternative parts with documented technical differences.
Technical Context
The LTC2250IUH#TRPBF implements a six-stage CMOS pipelined ADC architecture with digital correction logic and integrated clock duty cycle stabilizer-enabling high AC performance across wide input frequency ranges without external clock conditioning. Its sample-and-hold front-end supports differential drive with 1.5V common-mode bias (VCM pin), and internal reference programming via SENSE pin allows selectable ±0.5V or ±1V input ranges.
It uses separate analog (VDD) and digital output (OVDD) supplies, supporting output logic levels from 0.5V to 3.3V. The device includes shutdown (SHDN) and nap modes for power management, and outputs D0–D9 (MSB-first) with over/underflow flag (OF) and configurable output format (offset binary or 2's complement) via MODE pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit, no missing codes - guarantees monotonic transfer function and deterministic code mapping for all input values. |
| Sampling Rate | 105Msps - enables digitization of signals up to 52.5MHz (Nyquist) with sufficient margin for anti-alias filtering. |
| SNR | 61.6dB at 5MHz/30MHz input - defines usable dynamic range for baseband and IF sampling applications. |
| SFDR | 85dB at 5MHz/30MHz input - indicates spurious-free operation critical for multi-tone communication signals. |
| Input Bandwidth | 640MHz full-power bandwidth - supports direct RF sampling of L-band and lower S-band frequencies without external amplification. |
| Power Dissipation | 320mW typical at 105Msps - enables thermal design in compact QFN packages without forced air cooling. |
| INL / DNL | ±0.6LSB / ±0.6LSB over temperature - ensures accurate amplitude fidelity in precision measurement and calibration systems. |
Pinout & Package
Package: 32-lead (5mm × 5mm) plastic QFN with exposed pad (Pin 33 = GND). Exposed pad must be soldered to PCB ground for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN– | Differential analog input pair | Accepts ±0.5V to ±1V differential signal centered at 1.5V (VCM); requires matched impedance ≤100Ω per side for optimal SFDR. |
| REFH, REFL | ADC reference voltage terminals | Shorted pairs; require local 0.1µF + 2.2µF ceramic bypassing to GND for stable reference operation. |
| VDD (Pins 7, 32) | Analog supply | 3V ±0.15V supply; bypass each pin with 0.1µF capacitor to GND for noise suppression. |
| CLK | Single-ended sampling clock input | Positive-edge triggered; duty cycle stabilizer (enabled via MODE pin) relaxes clock source requirements. |
| SHDN, OE | Power mode control | SHDN=VDD + OE=GND → nap mode (15mW); SHDN=VDD + OE=VDD → shutdown (2mW). |
| D0–D9 | Parallel digital outputs | MSB-first LVCMOS outputs; OVDD programmable from 0.5V to 3.6V to interface with FPGA/ASIC I/O banks. |
| OF | Over/underflow flag | Active-high pulse indicates input exceeded full-scale range; used for automatic gain control or clipping detection. |
| MODE | Output format & stabilizer control | GND = offset binary + stabilizer off; 1/3 VDD = offset binary + stabilizer on; 2/3 VDD = 2's complement + stabilizer on. |
| SENSE | Reference range selection | VCM = ±0.5V range; VDD = ±1V range; external 0.5V–1V = ±VSENSE range - enables precise input scaling. |
| VCM | 1.5V common-mode bias output | Provides DC bias for differential drivers; must be bypassed with ≥2.2µF capacitor to GND near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible input range selection | Configurable ±0.5V to ±1V differential range via SENSE pin - eliminates need for external gain stages in multi-range systems. |
| Integrated clock duty cycle stabilizer | Enables full 105Msps performance with clock duty cycles from 40% to 60% - reduces jitter sensitivity and simplifies clock generation. |
| Low aperture jitter (0.2ps RMS) | Minimizes sampling-time uncertainty - preserves SNR at high input frequencies (e.g., >70MHz) where jitter-induced noise dominates. |
| Separate OVDD supply | Allows independent output voltage setting (0.5V–3.6V) - enables direct interfacing with low-voltage FPGAs (1.8V/2.5V) without level shifters. |
| On-chip 1.5V reference (VCM) | Stable, low-drift (±25ppm/°C) bias source - eliminates external reference IC and reduces BOM count in portable instrumentation. |
Applications
| Ultrasound Imaging | Spectral Analysis |
|---|---|
Use Scenario: Digitizing echo return signals from phased-array transducers operating at 2–15MHz center frequencies with wide dynamic range requirements. IC Role / Device Role / Timing Role: High-speed ADC capturing time-domain RF echoes; pipeline latency of 5 cycles enables real-time beamforming alignment. Use Value: 61.6dB SNR and 85dB SFDR preserve weak tissue boundary reflections amid strong clutter, improving image contrast resolution. | Use Scenario: Real-time FFT-based spectrum monitoring in RF test equipment analyzing multi-carrier LTE or 5G NR signals. IC Role / Device Role / Timing Role: Front-end digitizer for wide instantaneous bandwidth capture; 640MHz input bandwidth supports direct sampling of 2nd-IF or RF bands. Use Value: Low transition noise (0.08LSBRMS) and no missing codes ensure accurate amplitude and phase representation in frequency-domain processing. |
| Portable Instrumentation | Wired Broadband Communication |
Use Scenario: Handheld oscilloscopes and signal analyzers requiring battery-efficient, high-fidelity digitization up to 50MHz. IC Role / Device Role / Timing Role: Core ADC in low-power acquisition subsystem; nap mode (15mW) extends runtime during idle periods. Use Value: Single 3V supply and 320mW active power enable compact thermal design without heatsinks or fans in handheld enclosures. | Use Scenario: DOCSIS 3.1 cable modem upstream receivers digitizing 5–85MHz return-path signals with high linearity. IC Role / Device Role / Timing Role: Digitizer for analog upstream channel; differential input rejects common-mode noise from coaxial plant. Use Value: ±0.6LSB INL/DNL over temperature ensures accurate constellation mapping in QAM-4096 modulation schemes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9215BRUZ-105 | 10-bit, 105Msps; 64dB SNR, 82dB SFDR; 3.3V supply only; no internal VCM or SENSE-based range scaling. | Lacks flexible input range and integrated bias - requires external driver and reference circuitry. | Choose when legacy 3.3V system compatibility is required and board space permits external components. |
| LTC2252IUH#TRPBF | 12-bit, 105Msps; 66.5dB SNR, 84dB SFDR; same package, pinout, and feature set - drop-in upgrade path. | Higher resolution enables improved ENOB in narrowband applications like medical imaging. | Choose when system-level SNR requirement exceeds 61.6dB and existing layout supports identical footprint. |
Compared with AD9215BRUZ-105, LTC2250IUH#TRPBF offers superior SNR (61.6dB vs 64dB is misstated - actual LTC2250 is 61.6dB, AD9215 is 64dB; correction: AD9215 has higher SNR but lacks SENSE/VCM integration), while LTC2252IUH#TRPBF provides 2-bit resolution uplift with identical timing and power behavior - enabling seamless migration within the same hardware platform.
Availability
LTC2250IUH#TRPBF is available at Aetrix Electronics and suitable for ultrasound imaging, spectral analysis, and portable instrumentation requiring stable component supply across industrial temperature ranges (–40°C to +85°C).
Supply support for LTC2250IUH#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 aerospace, industrial, automotive, and communications markets.
The LTC2250IUH#TRPBF belongs to ADI's high-speed data converter product line, engineered specifically for applications demanding wide bandwidth, low noise, and robust operation in space-constrained, thermally sensitive environments.
FAQ
What is the operating temperature range for the LTC2250IUH#TRPBF?
The LTC2250IUH#TRPBF is rated for industrial operation from –40°C to +85°C (I-grade). This is confirmed in the Absolute Maximum Ratings table and applies to all DC and AC specifications unless otherwise noted. The device uses internal temperature compensation for reference drift (±30ppm/°C with internal reference) and maintains ±0.6LSB INL/DNL across this full range.
Does the LTC2250IUH#TRPBF support single-ended analog input?
Yes, the LTC2250IUH#TRPBF supports single-ended input: drive AIN+ with the signal and tie AIN– to VCM (1.5V). However, harmonic distortion and INL degrade relative to differential operation; SNR and DNL remain unchanged. For best performance, differential drive with matched ≤100Ω source impedance per input is recommended.
How is the input range configured on the LTC2250IUH#TRPBF?
The LTC2250IUH#TRPBF input range is set via the SENSE pin: connect SENSE to VCM for ±0.5V (1VP-P) range, to VDD for ±1V (2VP-P) range, or apply an external 0.5V–1V voltage for ±VSENSE. This configuration is active at power-up and does not require register writes - it is hardware-selectable and fully supported in the LTC2250IUH#TRPBF datasheet.
What is the purpose of the OF (over/underflow) pin on the LTC2250IUH#TRPBF?
The OF pin on the LTC2250IUH#TRPBF is an active-high output that pulses high whenever the analog input exceeds the selected full-scale range (either positive or negative saturation). It is asynchronous to the clock and can be used for real-time clipping detection, automatic gain control (AGC) feedback, or diagnostic logging in systems like ultrasound or software-defined radios.
Can the LTC2250IUH#TRPBF interface directly with a 1.8V FPGA I/O bank?
Yes, the LTC2250IUH#TRPBF can interface directly with a 1.8V FPGA I/O bank by setting OVDD = 1.8V. The digital outputs (D0–D9, OF) are LVCMOS-compliant with VOH ≥ 1.79V and VOL ≤ 0.09V at IO = 1.6mA, meeting 1.8V logic thresholds. No level-shifting circuitry is required when OVDD matches the FPGA's I/O voltage.
LTC2250IUH#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 105M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- 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:
- 2.85V ~ 3.4V
- Voltage - Supply, Digital:
- 2.85V ~ 3.4V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 32-QFN (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2250IUH#TRPBF FAQ
1.How can I place an order for LTC2250IUH#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2250IUH#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 LTC2250IUH#TRPBF reliable?
The price and inventory of LTC2250IUH#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2250IUH#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2250IUH#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2250IUH#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2250IUH#TRPBF?
LTC2250IUH#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2250IUH#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 LTC2250IUH#TRPBF?
For technical support, including LTC2250IUH#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2250IUH#TRPBF requirements.
6.How does Aetrix verify that LTC2250IUH#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2250IUH#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 LTC2250IUH#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2250IUH#TRPBF?
All LTC2250IUH#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2250IUH#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 LTC2250IUH#TRPBF part is unused and in its original packaging.
Return procedure for LTC2250IUH#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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