My Inquiry
My Account
Analog Devices Inc. LTC2298IUP#PBF
- Part No.:
- LTC2298IUP#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2298IUP#PBF.pdf
- Description:
- IC ADC 14BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:313
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2298IUP#PBF from Analog Devices (formerly Linear Technology) is a dual 14-bit, 65Msps low-power analog-to-digital converter operating from a single 3V supply (2.7V–3.4V), delivering 74.3dB SNR and 90dB SFDR at Nyquist, with 110dB channel isolation at 100MHz. It supports flexible differential input ranges (±0.5V to ±1V), features integrated clock duty cycle stabilization, and targets high-fidelity digitization in communications receivers and medical imaging front-ends.
For engineers reviewing the LTC2298IUP#PBF datasheet, LTC2298IUP#PBF pinout, LTC2298IUP#PBF application, or LTC2298IUP#PBF equivalent, key selection criteria include its 65Msps sample rate, dual-channel 14-bit resolution with no missing codes over temperature, 575MHz full-power bandwidth, multiplexed/parallel output bus options, and industrial-grade –40°C to +85°C operation.
Technical Context
The LTC2298IUP#PBF implements a six-stage CMOS pipelined ADC architecture per channel, achieving 5-cycle pipeline latency and supporting independent or synchronized sampling via separate CLKA/CLKB inputs. Its internal 1.5V reference with ±25ppm/°C tempco and programmable input range (via SENSEA/SENSEB pins) enables precise DC-coupled signal acquisition without external reference components.
It integrates a clock duty cycle stabilizer (enabled via MODE pin) to maintain AC performance across wide input clock duty cycles (5%–95%), and offers three power states: active (400mW), nap mode (15mW per channel), and shutdown (2mW per channel). Output drivers support OVDD from 0.5V to 3.6V, enabling direct interfacing with 1.8V, 2.5V, or 3.3V logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with no missing codes over –40°C to +85°C - guarantees monotonicity and deterministic code mapping in closed-loop control or spectral analysis. |
| Sample Rate | 65Msps - supports real-time digitization of IF signals up to 32.5MHz (Nyquist-limited) in wireless baseband processing. |
| SNR / SFDR | 74.3dB SNR and 90dB SFDR at 5MHz input - enables >12 effective bits for high-dynamic-range sensor data capture. |
| Input Bandwidth | 575MHz full-power bandwidth - preserves fidelity of fast-rising pulses and wideband modulated waveforms without slew-induced distortion. |
| Power Dissipation | 400mW at 65Msps (both channels active) - allows thermal management in dense RF front-end PCB layouts without forced air cooling. |
| Channel Isolation | 110dB at 100MHz - prevents crosstalk-induced image rejection degradation in dual-path I/Q demodulators. |
| Supply Range | 2.7V–3.4V analog VDD, 0.5V–3.6V digital OVDD - simplifies mixed-voltage system integration and supports low-voltage FPGA interfaces. |
Pinout & Package
64-pin (9mm × 9mm) plastic QFN package with exposed thermal pad (Pin 65 = GND); requires soldering of exposed pad to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AINA+/AINA–, AINB+/AINB– | Differential analog inputs (Ch A/B) | Accept ±0.5V to ±1V differential signals; require matched trace routing and common-mode bias via VCMA/VCMB. |
| CLKA/CLKB | Asynchronous sampling clocks | Single-ended positive-edge-triggered; enable independent or time-aligned dual-channel sampling for I/Q or TDD systems. |
| DA0–DA13 / DB0–DB13 | Parallel digital outputs (Ch A/B) | 14-bit offset binary or 2's complement (MODE-selectable); drive 0.5V–3.6V logic with 50mA sink/source capability. |
| MUX, SHDNA/SHDNB, OEA/OEB | Output configuration controls | Enable bus multiplexing (MUX), per-channel shutdown (SHDNx), and output enable/disable (OEx) - critical for power-gated multi-ADC systems. |
| SENSEA/SENSEB | Input range programming | Set ±0.5V (tie to VCMA/VCMB), ±1V (tie to VDD), or custom range (external voltage 0.5V–1V) - eliminates need for external gain stages. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated clock duty cycle stabilizer | Enables high SNR/SFDR with non-50% clock sources (e.g., PLL outputs), removing need for external DCS ICs or clock cleanup circuits. |
| Dual independent shutdown modes | Nap mode (15mW/channel) retains bias states for fast wake-up (<1µs); shutdown (2mW/channel) fully disables analog core - ideal for burst-mode receivers. |
| Flexible reference architecture | Internal 1.5V reference with ±25ppm/°C drift and external reference option - ensures stable INL/DNL across industrial temperature range without calibration. |
| Programmable output format | Offset binary or 2's complement via MODE pin - simplifies FPGA interface logic and eliminates post-conversion sign extension or inversion. |
| High channel isolation | 110dB at 100MHz - maintains signal integrity in dual-channel applications like phased-array radar beamforming or stereo ultrasound imaging. |
Applications
| Wireless Baseband Receiver | Medical Ultrasound Imaging |
|---|---|
|
Use Scenario: Digitizing quadrature IF signals from zero-IF or low-IF radio architectures in LTE/5G small cells. IC Role / Device Role / Timing Role: Dual-channel ADC captures I and Q paths simultaneously with matched gain/phase and sub-1ps inter-channel jitter. Use Value: 74.3dB SNR enables >70dB adjacent channel rejection; 110dB isolation prevents I/Q crosstalk-induced EVM degradation. |
Use Scenario: Sampling echo return signals from piezoelectric transducers in portable ultrasound machines. IC Role / Device Role / Timing Role: High-speed digitizer for time-of-flight measurements with precise timing alignment between receive channels. Use Value: 575MHz input bandwidth preserves pulse shape fidelity; 65Msps rate supports 15cm depth resolution at 1.54mm/µs sound velocity. |
| Spectral Monitoring System | Portable Test Equipment |
|
Use Scenario: Real-time spectrum analysis in RF interference hunting tools covering 0–30MHz with >100dB dynamic range. IC Role / Device Role / Timing Role: Dual ADC feeds parallel FFT engines for simultaneous frequency-domain and time-domain analysis. Use Value: 90dB SFDR suppresses spurious artifacts below –90dBc, enabling accurate detection of weak interferers near strong carriers. |
Use Scenario: Embedded digitizer in handheld oscilloscopes or signal analyzers requiring battery-efficient high-resolution acquisition. IC Role / Device Role / Timing Role: Low-power ADC subsystem minimizing thermal load while maintaining 14-bit ENOB at 65Msps. Use Value: 400mW total power enables >4 hours runtime on 10Wh battery; nap mode extends standby to weeks without data loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9257BCPZ-65 | 14-bit, 65Msps, 1.8V supply, JESD204B serial output, no internal reference | Requires external reference and serializer FPGA logic; lower power (220mW) but higher system complexity | Select when board space is constrained and JESD204B infrastructure exists; avoid if parallel LVCMOS interface is required. |
| LTC2297IUP#PBF | Same family, 40Msps, 235mW, identical pinout and feature set | Lower sample rate reduces Nyquist bandwidth to 20MHz; suitable for cost-sensitive or lower-bandwidth applications | Select when 40Msps suffices and power budget is tighter; drop-in replacement with no layout change but reduced throughput. |
Compared with AD9257BCPZ-65, LTC2298IUP#PBF offers simpler parallel interface and integrated reference, reducing BOM count; compared with LTC2297IUP#PBF, it delivers 62.5% higher throughput at only 70% higher power, making it optimal for bandwidth-critical industrial instrumentation.
Availability
LTC2298IUP#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, and test equipment requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature grade (–40°C to +85°C).
Supply support for LTC2298IUP#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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2298IUP#PBF belongs to ADI's high-speed precision ADC product line, designed specifically for demanding digitization tasks where dynamic range, channel matching, and low power coexist - such as software-defined radios and portable diagnostic equipment.
FAQ
What is the operating temperature range of the LTC2298IUP#PBF?
The LTC2298IUP#PBF is rated for industrial operation from –40°C to +85°C. This is confirmed by the "I" suffix in the part number and specified in the Absolute Maximum Ratings table. All key AC/DC specifications - including SNR, SFDR, INL, and DNL - are guaranteed across this full range, not just at 25°C.
Does the LTC2298IUP#PBF require an external reference voltage?
No, the LTC2298IUP#PBF includes a precision internal 1.5V reference with ±25ppm/°C tempco. External reference is optional and only needed when higher accuracy or custom scaling is required; SENSEA/SENSEB pins allow seamless switching between internal and external references without circuit redesign.
How does the clock duty cycle stabilizer function in the LTC2298IUP#PBF?
The LTC2298IUP#PBF's clock duty cycle stabilizer (DCS) is enabled by setting MODE to 1/3 VDD or 2/3 VDD. It actively corrects non-50% input clock duty cycles (down to 5% or up to 95%) to deliver consistent aperture jitter and preserve SNR/SFDR - eliminating the need for external clock conditioning circuits in PLL-based systems.
Can the LTC2298IUP#PBF operate with a 1.8V OVDD supply?
Yes, the LTC2298IUP#PBF supports OVDD from 0.5V to 3.6V. At OVDD = 1.8V, VOH is guaranteed ≥1.79V and VOL ≤0.09V under 1.6mA load, enabling direct connection to 1.8V FPGA I/O banks without level shifters - verified in the Digital Outputs section of the datasheet.
What is the significance of the exposed pad (Pin 65) on the LTC2298IUP#PBF?
Pin 65 is the exposed thermal pad, electrically connected to GND. It must be soldered to a PCB copper pour tied to system ground to ensure proper thermal dissipation (θJA = 20°C/W) and low-impedance analog grounding. Failure to connect it degrades SNR by up to 3dB and risks thermal runaway at full 65Msps operation.
LTC2298IUP#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 65M
- Number of Inputs:
- 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- Pipelined
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.4V
- Voltage - Supply, Digital:
- 2.7V ~ 3.4V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-QFN (9x9)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2298IUP#PBF FAQ
1.How can I place an order for LTC2298IUP#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2298IUP#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 LTC2298IUP#PBF reliable?
The price and inventory of LTC2298IUP#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2298IUP#PBF is usually 5 days.
3.What payment methods are accepted for LTC2298IUP#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2298IUP#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2298IUP#PBF?
LTC2298IUP#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2298IUP#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 LTC2298IUP#PBF?
For technical support, including LTC2298IUP#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2298IUP#PBF requirements.
6.How does Aetrix verify that LTC2298IUP#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2298IUP#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 LTC2298IUP#PBF meets industry standards.
7.What is the process for return or replacement of LTC2298IUP#PBF?
All LTC2298IUP#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2298IUP#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 LTC2298IUP#PBF part is unused and in its original packaging.
Return procedure for LTC2298IUP#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2298IUP#PBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
