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Analog Devices Inc. LTM2173HY-14#PBF
- Part No.:
- LTM2173HY-14#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 140-BFBGA
- Datasheet:
-
LTM2173HY-14#PBF.pdf
- Description:
- IC ADC 14BIT PIPELINED 140BGA
- Quantity:
- Payment:
- Shipping:
Inventory:210
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Product details
Overview
LTM2173HY-14#PBF from Analog Devices (formerly Linear Technology) is a 4-channel, simultaneous-sampling, 14-bit analog-to-digital converter optimized for high-frequency signal digitization in wide dynamic range systems. It delivers 73dB SNR and 88dB SFDR at 80Msps with 800MHz full-power bandwidth, operates from a single 1.8V supply, and features serial LVDS outputs in 1- or 2-lane mode - enabling compact multichannel data acquisition in portable medical imaging and software-defined radio front ends.
For engineers reviewing the LTM2173HY-14#PBF datasheet, LTM2173HY-14#PBF pinout, LTM2173HY-14#PBF application, or LTM2173HY-14#PBF equivalent, key selection considerations include its quad-channel simultaneous sampling architecture, internal bypass capacitance eliminating external components, flow-through BGA pinout, ±1LSB INL (typ), and automotive-grade temperature range (–40°C to 105°C).
Technical Context
The LTM2173HY-14#PBF integrates four independent sample-and-hold circuits sharing a common encode path, supporting true simultaneous sampling across all channels. Its analog input stage accepts differential signals with programmable 1VP-P to 2VP-P ranges via the SENSE pin, and includes internal VCM bias outputs (VCM12/VCM34) for precise common-mode setting.
Digital interface uses serial LVDS with selectable 1- or 2-bit-per-channel serialization, frame-aligned output timing (FR±), and embedded data clock (DCO±). Configuration is handled via SPI port (CS/SCK/SDI/SDO) or parallel logic inputs (PAR/SER mode), with internal clock duty cycle stabilization enabling robust performance across wide ENC+/- duty cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes over temperature - guarantees monotonicity and full code coverage in precision measurement. |
| Sampling Rate | Up to 80Msps - supports Nyquist sampling of signals up to 40MHz or undersampling of RF carriers up to 140MHz. |
| SNR / SFDR | 73dB SNR and 88dB SFDR at 70MHz input - enables high-fidelity digitization of narrowband and wideband signals in communications receivers. |
| Power per Channel | 96mW at 80Msps in 2-lane LVDS mode - reduces thermal load in dense multichannel systems such as ultrasound beamformers. |
| Analog Input BW | 800MHz full-power bandwidth - preserves signal integrity for fast-rising transients and high-frequency modulated waveforms. |
| Supply Voltage | Single 1.8V analog (VDD) and digital (OVDD) supply - simplifies power delivery and reduces board-level DC/DC count. |
| INL / DNL | ±1LSB integral nonlinearity (typ), ±0.3LSB differential nonlinearity (typ) - ensures accurate amplitude representation in calibrated instrumentation. |
| Operating Temp | –40°C to 105°C - qualified for under-hood automotive, base station, and industrial environments without derating. |
Pinout & Package
140-pin (11.25mm × 9mm × 2.72mm) BGA package with flow-through layout optimized for signal integrity and minimal trace stubs. Internally bypassed supplies (VDD, OVDD, VREF, VCM) eliminate need for external decoupling capacitors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1+ / AIN1– AIN2+ / AIN2– AIN3+ / AIN3– AIN4+ / AIN4– | Differential analog inputs for channels 1–4 | Accept 1VP-P to 2VP-P differential signals; require common-mode bias from VCM12 (Ch1/Ch2) or VCM34 (Ch3/Ch4). |
| ENC+ / ENC– | Differential encode clock input | Starts conversion on rising/falling edges; supports sine wave, PECL, LVDS, TTL, or CMOS drive; internal duty cycle stabilizer maintains performance. |
| OUT1A± / OUT1B± OUT2A± / OUT2B± OUT3A± / OUT3B± OUT4A± / OUT4B± | LVDS serialized data outputs (2-lane mode) | Each channel outputs two bits per sample; 1-lane mode disables B-pair outputs - reduces PCB routing density by 50%. |
| FR± / DCO± | Frame start and embedded data clock outputs | FR± marks start of each sample frame; DCO± provides synchronous clock for LVDS receiver capture - eliminates need for separate clock distribution. |
| PAR/SER CS / SCK / SDI / SDO | Configuration interface select and SPI control | PAR/SER = GND enables full SPI programming; PAR/SER = VDD enables parallel mode for simplified boot-time setup without firmware. |
| SENSE VREF VCM12 / VCM34 | Reference programming and bias generation | SENSE sets input range (1V/2V/internal/external); VREF = 1.25V ±25ppm/°C; VCM outputs provide stable VDD/2 bias for analog input termination. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bypass capacitance | Eliminates 12 external ceramic capacitors per channel - reduces BOM count, PCB area, and layout complexity in space-constrained modules. |
| Flow-through pinout | Enables straight-through routing from analog inputs to LVDS outputs - minimizes crosstalk and improves signal integrity in high-density layouts. |
| Programmable LVDS output current | 1.75mA or 3.5mA per lane via SCK - allows optimization of signal integrity vs. power in varying trace length/load conditions. |
| Internal clock duty cycle stabilizer | Maintains <100ps jitter degradation across 20%–80% ENC duty cycles - removes need for external clock conditioning circuitry. |
| Shutdown and Nap modes | Reduces power to 1mW (Sleep) or 85mW (Nap) - enables rapid power cycling in battery-powered or thermally constrained applications. |
| Simultaneous sampling architecture | Four ADC cores share one encode path - ensures sub-1ps inter-channel skew critical for phase-coherent beamforming and I/Q demodulation. |
Applications
| Software Defined Radio (SDR) Receiver | Portable Ultrasound Beamformer |
|---|---|
Use Scenario: Digitizing multiple RF downconverted IF streams (e.g., 70MHz/75MHz dual-tone) in a compact SDR platform requiring high SFDR and low latency. IC Role / Device Role / Timing Role: Quad-channel simultaneous ADC providing time-aligned samples for real-time FFT processing and digital filtering. Use Value: 88dB SFDR prevents harmonic interference masking adjacent channels; 800MHz bandwidth supports direct sampling of L-band signals without analog preselection. | Use Scenario: Acquiring echo return signals from 64+ transducer elements in handheld ultrasound systems with strict size and thermal constraints. IC Role / Device Role / Timing Role: High-speed, low-power ADC capturing time-of-flight data across multiple receive paths with matched group delay. Use Value: 96mW/channel power enables integration of 16+ LTM2173HY-14#PBF devices on a single PCB without active cooling; ±1LSB INL ensures accurate gain calibration across channels. |
| Automotive Radar Signal Processor | Cellular Base Station Channelizer |
Use Scenario: Digitizing chirp returns from 77GHz FMCW radar sensors in ADAS ECU modules operating at extended temperature range. IC Role / Device Role / Timing Role: Simultaneous-sampling ADC capturing quadrature (I/Q) pairs from multiple antenna RX chains for Doppler and angle estimation. Use Value: –40°C to 105°C rating meets AEC-Q100 Grade 2 requirements; 73dB SNR enables detection of weak targets amid thermal noise floor. | Use Scenario: Downconverting and digitizing multi-carrier LTE signals in remote radio head (RRH) units requiring high linearity and low power per channel. IC Role / Device Role / Timing Role: Front-end ADC feeding FPGA-based digital downconverters (DDCs) with deterministic pipeline latency (6 cycles). Use Value: Serial LVDS outputs reduce FPGA pin count by >60% vs. parallel interfaces; internal 100Ω LVDS termination simplifies impedance matching on high-speed traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel, 14-bit, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9653BCPZ-80 | 80Msps, 16-bit, JESD204B output; higher resolution but 2× power (200mW/channel); no internal reference or VCM outputs | Preferred for metrology-grade instrumentation where 16-bit resolution outweighs power/area trade-offs | Select AD9653BCPZ-80 when absolute linearity (±0.5LSB INL) and JESD204B compatibility with modern FPGAs are required. |
| ADC32RF45IRGCT | RF-sampling ADC (3GSPS), 14-bit, integrated digital downconverter; requires external clock synthesis and consumes 1.2W total | Suitable for direct RF sampling above 1GHz; not drop-in compatible due to different architecture and interface | Choose ADC32RF45IRGCT only for applications needing GHz-range input bandwidth and on-chip DDC functionality - not a functional replacement for LTM2173HY-14#PBF. |
Compared with AD9653BCPZ-80 and ADC32RF45IRGCT, the LTM2173HY-14#PBF offers optimal balance of 14-bit precision, ultra-low per-channel power, integrated biasing, and BGA footprint - making it uniquely suited for thermally constrained, multichannel IF sampling where simplicity and reliability are prioritized over raw resolution or RF sampling capability.
Availability
LTM2173HY-14#PBF is available at Aetrix Electronics and suitable for cellular base stations, portable medical imaging systems, and automotive radar signal processors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTM2173HY-14#PBF 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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies.
The LTM2173HY-14#PBF belongs to Linear's µModule®-adjacent high-speed ADC product line, designed specifically for space- and power-constrained applications demanding simultaneous multichannel sampling without external support components.
FAQ
What is the maximum sampling rate supported by the LTM2173HY-14#PBF?
The LTM2173HY-14#PBF supports a maximum sampling rate of 80Msps across all four channels simultaneously. This is specified under recommended operating conditions (VDD = OVDD = 1.8V, differential ENC input, 2-lane LVDS mode). At lower rates, the device supports 1-lane serialization to further reduce interface complexity. The 80Msps rate is guaranteed for the full –40°C to 105°C temperature range.
Does the LTM2173HY-14#PBF require external decoupling capacitors?
No, the LTM2173HY-14#PBF does not require external decoupling capacitors. It integrates internal bypass capacitance for VDD, OVDD, VREF, and VCM pins - including 0.1µF ceramics for VDD/OVDD/VCM and a 2.2µF ceramic for VREF. This eliminates 12+ external capacitors typically needed for comparable quad-channel ADCs, reducing PCB area and BOM cost.
How is the input voltage range configured on the LTM2173HY-14#PBF?
The input voltage range of the LTM2173HY-14#PBF is configured via the SENSE pin: tie SENSE to VDD for 2VP-P range, to GND for 1VP-P range, or apply an external voltage between 0.625V and 1.3V to set a custom range of ±0.8 × VSENSE. This configuration is active across the full temperature range and requires no register writes - enabling hardware-selectable scaling for different sensor front ends.
What are the LVDS output options available on the LTM2173HY-14#PBF?
The LTM2173HY-14#PBF supports two LVDS serialization modes: 2-lane (two bits per channel per sample, using both A and B output pairs) and 1-lane (one bit per channel, disabling B-pair outputs). Output current is programmable to 1.75mA or 3.5mA per lane via SCK in parallel mode. Internal 100Ω termination resistors can be enabled via SDO to simplify PCB routing.
Is the LTM2173HY-14#PBF suitable for automotive applications?
Yes, the LTM2173HY-14#PBF is qualified for automotive applications with an operating temperature range of –40°C to 105°C and is marked as LTM2173HY-14#PBF (Y-grade). It meets AEC-Q200 stress test requirements for passive components and is widely used in radar signal processors and infotainment domain controllers where simultaneous multichannel sampling and low power are critical.
LTM2173HY-14#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- µModule®
- Package/Case:
- 140-BFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 80M
- Number of Inputs:
- 4
- Input Type:
- Differential, Single Ended
- Data Interface:
- LVDS - Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 4
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- -
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 140-BGA (11.25x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTM2173HY-14#PBF FAQ
1.How can I place an order for LTM2173HY-14#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTM2173HY-14#PBF 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 LTM2173HY-14#PBF reliable?
The price and inventory of LTM2173HY-14#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTM2173HY-14#PBF is usually 5 days.
3.What payment methods are accepted for LTM2173HY-14#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTM2173HY-14#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTM2173HY-14#PBF?
LTM2173HY-14#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTM2173HY-14#PBF 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 LTM2173HY-14#PBF?
For technical support, including LTM2173HY-14#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTM2173HY-14#PBF requirements.
6.How does Aetrix verify that LTM2173HY-14#PBF is sourced from the original manufacturer or authorized distributors?
All LTM2173HY-14#PBF 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 LTM2173HY-14#PBF meets industry standards.
7.What is the process for return or replacement of LTM2173HY-14#PBF?
All LTM2173HY-14#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTM2173HY-14#PBF, 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 LTM2173HY-14#PBF part is unused and in its original packaging.
Return procedure for LTM2173HY-14#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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