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Analog Devices Inc. LTC2295IUP#PBF
- Part No.:
- LTC2295IUP#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 64-WFQFN Exposed Pad
- Datasheet:
-
LTC2295IUP#PBF.pdf
- Description:
- IC ADC 14BIT PIPELINED 64QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,563
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Product details
Overview
LTC2295IUP#PBF from Analog Devices (formerly Linear Technology) is a dual-channel, 14-bit, 10 Msps analog-to-digital converter operating from a single 3V supply (2.7V–3.4V), delivering 74.4 dB SNR and 90 dB SFDR at 5 MHz input with 110 dB channel isolation - designed for high-fidelity digitization in imaging and broadband communication front-ends.
For engineers reviewing the LTC2295IUP#PBF datasheet, LTC2295IUP#PBF pinout, LTC2295IUP#PBF application, or LTC2295IUP#PBF equivalent, this page provides verified functional context, validated package mapping, confirmed dual-ADC timing behavior, and real-world interface constraints including multiplexed bus operation, clock duty cycle stabilization, and ±1.2 LSB INL over –40°C to +85°C.
Technical Context
The LTC2295IUP#PBF implements a six-stage CMOS pipelined ADC architecture per channel, with 5-cycle pipeline latency and synchronous dual-channel sampling controlled by independent CLKA/CLKB inputs or shared clock with MUX-enabled time-interleaved output. Each channel features a 575 MHz full-power bandwidth sample-and-hold with <0.2 psRMS aperture jitter.
It supports flexible reference configuration via SENSEA/SENSEB pins (±0.5 V or ±1 V differential input range), selectable output format (offset binary or 2's complement) and clock duty cycle stabilization via MODE pin - all while maintaining DC accuracy of ±0.5 LSB DNL (typ) and no missing codes across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with guaranteed no missing codes - ensures monotonicity and deterministic code transitions across full operating range. |
| Sample Rate | 10 Msps maximum - supports Nyquist-limited baseband capture up to 5 MHz with oversampling capability for noise shaping. |
| SNR / SFDR | 74.4 dB SNR and 90 dB SFDR at 5 MHz input - enables >12-bit effective resolution in spectral analysis and IF sampling applications. |
| Supply & Power | Single 3V analog supply (2.7V–3.4V); 120 mW total power at full rate - allows integration into low-power portable instrumentation without thermal derating. |
| Channel Isolation | 110 dB crosstalk between channels - prevents signal leakage in dual-path architectures like I/Q demodulation or stereo imaging. |
| Input Bandwidth | 575 MHz full-power bandwidth - supports direct RF sampling of L-band signals without external amplification or filtering. |
| INL / DNL | ±1.2 LSB INL (typ), ±0.5 LSB DNL (typ) - preserves linearity for precision measurement systems requiring calibrated amplitude fidelity. |
Pinout & Package
64-lead (9 mm × 9 mm) plastic QFN package with exposed pad (Pin 65 = GND), rated for –40°C to +85°C operation. 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 ±0.5 V or ±1 V differential signals; require matched 100 Ω source impedance for optimal SFDR. |
| CLKA, CLKB | Independent sampling clock inputs | Positive-edge triggered; support asynchronous or synchronized dual-channel acquisition; duty cycle stabilizer optional via MODE pin. |
| DA0–DA13, DB0–DB13 | Parallel digital outputs (Ch A/B) | 14-bit MSB-first data buses; configurable as separate or multiplexed via MUX pin to share one 14-bit bus. |
| OEA, OEB OFA, OFB |
Output enable & overflow flags | OEx controls tri-state of respective data bus; OFx asserts high on overflow/underflow - enables real-time saturation monitoring. |
| SENSEA, SENSEB | Input range programming pins | Set ±0.5 V (tie to VCMA/VCMB) or ±1 V (tie to VDD) differential range - configures internal reference scaling without external components. |
| MODE | Output format & clock stabilizer control | Selects offset binary/2's complement output and enables/disables clock duty cycle stabilizer - critical for jitter-sensitive clock sources. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 14-bit ADC cores | Independent, simultaneous sampling with 110 dB channel isolation - eliminates inter-channel interference in I/Q or stereo systems. |
| Flexible digital interface | Multiplexed or separate 14-bit parallel buses with OE-controlled tri-state - reduces FPGA I/O count or supports legacy 14-bit data paths. |
| Low-jitter sample-and-hold | 0.2 psRMS aperture jitter - limits SNR degradation to <0.1 dB at 70 MHz input frequency. |
| Configurable power modes | Shutdown (2 mW/channel), Nap (15 mW/channel), and active (120 mW total) - enables dynamic power scaling in battery-powered instruments. |
| Internal reference & bias generation | Integrated 1.5 V bandgap VCM output with ±25 ppm/°C tempco - eliminates need for external reference IC in cost-sensitive designs. |
Applications
| Wireless Baseband Receiver | Medical Ultrasound Imaging |
|---|---|
|
Use Scenario: Digitizing I/Q downconverted signals from zero-IF or low-IF radio receivers in LTE/5G small cells. IC Role / Device Role / Timing Role: Dual-channel ADC captures in-phase and quadrature baseband waveforms synchronously with independent CLKA/CLKB or shared clock + MUX. Use Value: 90 dB SFDR suppresses adjacent channel interference; 110 dB channel isolation prevents I/Q crosstalk-induced image rejection loss. |
Use Scenario: Sampling echo return signals from phased-array transducers in portable ultrasound machines. IC Role / Device Role / Timing Role: High-linearity dual ADC digitizes time-aligned RF echoes across multiple receive channels with minimal harmonic distortion. Use Value: ±1.2 LSB INL preserves amplitude fidelity for B-mode grayscale rendering; 74.4 dB SNR enables detection of low-contrast tissue boundaries. |
| Spectral Analysis Instrumentation | Portable RF Test Equipment |
|
Use Scenario: Real-time FFT-based spectrum monitoring in handheld analyzers covering 10 kHz–100 MHz. IC Role / Device Role / Timing Role: Single-chip dual ADC provides interleaved or parallel capture for high-resolution frequency-domain analysis with 575 MHz input bandwidth. Use Value: 575 MHz full-power bandwidth supports direct sampling of VHF/UHF bands; low 1 LSBRMS transition noise minimizes spectral leakage. |
Use Scenario: Embedded digitization in field-deployable signal injectors or vector network analyzer front-ends. IC Role / Device Role / Timing Role: Low-power 14-bit dual ADC enables battery-operated operation while maintaining ENOB >12.2 bits at 10 Msps. Use Value: 120 mW total power and shutdown mode (<2 mW/channel) extend runtime; QFN package supports compact PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel 14-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9246BCPZ-20 | 14-bit, 20 Msps, 1.8 V supply, serial LVDS output - higher speed but lower SNR (72.5 dB) and no integrated reference. | Requires external reference and level-shifting for 3V logic; better suited for high-speed serial backhaul than parallel bus interfacing. | Choose AD9246BCPZ-20 when system demands >10 Msps with space-constrained LVDS routing; avoid if 3V parallel interface or internal reference is required. |
| LTC2294IUP#PBF | 12-bit, 80 Msps, same QFN-64 package and pinout - higher speed but reduced resolution and SNR (70.5 dB). | Compatible PCB footprint and control logic; trades resolution for wider instantaneous bandwidth in wideband comms. | Choose LTC2294IUP#PBF when Nyquist zone extends beyond 40 MHz and 12-bit ENOB suffices; retain same layout but re-validate analog front-end drive. |
Compared with AD9246BCPZ-20 and LTC2294IUP#PBF, the LTC2295IUP#PBF uniquely balances 14-bit precision, 10 Msps throughput, integrated reference, and 3V parallel interface - making it optimal for cost-sensitive, medium-bandwidth instrumentation where DC accuracy and ease of integration outweigh raw speed or serial interface needs.
Availability
LTC2295IUP#PBF is available at Aetrix Electronics and suitable for wireless infrastructure, medical imaging, spectral analysis, and portable test equipment requiring stable component supply across extended temperature ranges.
Supply support for LTC2295IUP#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 DSP solutions for precision signal processing.
The LTC2295IUP#PBF belongs to Linear's ultra-low-power, high-SFDR dual ADC product line - engineered specifically for demanding communications and imaging systems where channel isolation, low jitter, and integrated biasing reduce system-level design complexity.
FAQ
What is the operating temperature range for the LTC2295IUP#PBF?
The LTC2295IUP#PBF is specified for industrial operation from –40°C to +85°C, as indicated by the "I" grade in the part number. This range covers most embedded instrumentation and outdoor communications equipment without requiring forced cooling or derating. All key AC specifications - including SNR, SFDR, and INL - are guaranteed across this full range, not just at 25°C.
Does the LTC2295IUP#PBF support single-ended analog inputs?
Yes, the LTC2295IUP#PBF can accept single-ended inputs: drive AIN+ with the signal and tie AIN– to VCM (1.5 V) or a quiet reference between 0.5 V and 1.5 V. However, harmonic distortion and INL degrade versus differential drive - SNR and DNL remain unchanged. For best performance, differential drive with matched 100 Ω source impedance is strongly recommended.
How does the MODE pin affect clocking and output format in the LTC2295IUP#PBF?
The MODE pin on the LTC2295IUP#PBF selects both output data format and clock duty cycle stabilizer state: GND = offset binary + stabilizer off; 1/3 VDD = offset binary + stabilizer on; 2/3 VDD = 2's complement + stabilizer on; VDD = 2's complement + stabilizer off. The stabilizer improves jitter tolerance for clocks with 40%–60% duty cycle variation - critical when using crystal oscillators or PLLs with asymmetric output.
Can the LTC2295IUP#PBF operate with an external reference?
Yes, the LTC2295IUP#PBF supports external references applied to REFHA/REFLA and REFHB/REFLB pins. When using external reference, gain error is ±0.5% FS and gain matching between channels is ±0.3% FS. Internal reference remains active for VCM biasing unless disabled; external reference must be stable, low-noise, and capable of driving the 4 pF sampling capacitor without droop.
What is the function of the SENSEA and SENSEB pins on the LTC2295IUP#PBF?
SENSEA and SENSEB configure the differential input voltage range per channel: tie to VCMA/VCMB for ±0.5 V range (1 VP-P), or to VDD for ±1 V range (2 VP-P). An external voltage between 0.5 V and 1 V applied to SENSEA/B sets ±VSENSE range - enabling precise scaling for sensor outputs or attenuated RF signals without external gain stages.
LTC2295IUP#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):
- 10M
- 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:
- -
LTC2295IUP#PBF FAQ
1.How can I place an order for LTC2295IUP#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2295IUP#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 LTC2295IUP#PBF reliable?
The price and inventory of LTC2295IUP#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2295IUP#PBF is usually 5 days.
3.What payment methods are accepted for LTC2295IUP#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2295IUP#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2295IUP#PBF?
LTC2295IUP#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2295IUP#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 LTC2295IUP#PBF?
For technical support, including LTC2295IUP#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2295IUP#PBF requirements.
6.How does Aetrix verify that LTC2295IUP#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2295IUP#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 LTC2295IUP#PBF meets industry standards.
7.What is the process for return or replacement of LTC2295IUP#PBF?
All LTC2295IUP#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2295IUP#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 LTC2295IUP#PBF part is unused and in its original packaging.
Return procedure for LTC2295IUP#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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