My Inquiry
My Account
Analog Devices Inc. LTC2323CUFD-16#PBF
- Part No.:
- LTC2323CUFD-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-WFQFN Exposed Pad
- Datasheet:
-
LTC2323CUFD-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 28QFN
- Quantity:
- Payment:
- Shipping:
Inventory:790
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2323CUFD-16#PBF from Analog Devices is a dual, 16-bit, 5 Msps differential-input successive approximation register (SAR) ADC with ±4 LSB INL (typ), 81 dB SNR (typ), and integrated 4.096 V temperature-compensated reference (20 ppm/°C max drift). It operates from a single 3.3 V or 5 V supply, supports CMOS or LVDS serial I/O, and delivers one-cycle latency-ideal for high-speed data acquisition in optical networking and multiphase motor control.
For engineers reviewing the LTC2323CUFD-16#PBF datasheet, LTC2323CUFD-16#PBF pinout, LTC2323CUFD-16#PBF application, or LTC2323CUFD-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, wide input common mode range (0 V to VDD), differential input voltage range of ±4.096 V, 5 Msps per channel throughput, and support for industrial temperature range (0°C to 70°C).
Technical Context
The LTC2323CUFD-16#PBF implements two independent SAR ADC cores, each with dedicated sample-and-hold, 16-bit CDAC, and differential comparator. It uses internal 4.096 V reference buffers (REFOUT1/REFOUT2) referenced to REFRTN1/REFRTN2, with option to disable via REFINT for external reference use. Conversion is initiated by CNV falling edge, with acquisition time of 28.5 ns and conversion time of 171.5 ns.
Its digital interface supports configurable CMOS or LVDS modes via CMOS/LVDS pin, delivering skew-matched CLKOUT for deterministic timing. SDO1+/SDO1– and SDO2+/SDO2– provide channel-specific MSB-first serial output synchronized to SCK, with one-cycle latency enabling real-time processing in FPGA-based systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-level quantization without missing codes across temperature. |
| Sampling Rate | 5 Msps per channel - enables real-time capture of signals up to 2.2 MHz Nyquist bandwidth. |
| INL (typ) | ±4 LSB - ensures monotonicity and linearity critical for closed-loop control and precision measurement. |
| SNR (typ) | 81 dB at fIN = 2.2 MHz - supports >13 ENOB for high-fidelity signal reconstruction. |
| Reference | Internal 4.096 V ±0.2% (20 ppm/°C max drift) - eliminates need for external reference and reduces BOM count. |
| Supply | Single 3.3 V or 5 V - simplifies power architecture versus dual-supply ADCs; OVDD supports 1.71 V–2.5 V I/O logic. |
| Power (typ) | 40 mW per channel at 5 Msps - enables thermally constrained high-density designs with nap/sleep modes down to 5 µW. |
Pinout & Package
Package: 28-lead (4 mm × 5 mm) plastic QFN (UFD) with exposed pad (Pin 29) soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (1, 8) | Analog power supply | Must be bypassed with 10 µF + 0.1 µF ceramics; both pins tied together to same 3.3 V or 5 V rail. |
| AIN1+, AIN1– (6, 7); AIN2+, AIN2– (2, 3) | Differential analog inputs | Each pair accepts ±4.096 V differential swing with 0 V to VDD common mode range; no configuration required. |
| CNV (9) | Conversion start trigger | Falling edge initiates hold-and-convert; requires low-jitter source (e.g., FPGA clock) for <1 ps RMS aperture jitter. |
| REFOUT1/REFOUT2 (12, 26); REFRTN1/REFRTN2 (11, 27) | Reference buffer outputs and returns | Provide isolated 4.096 V references per channel; decoupled locally with 10 µF + 0.1 µF; REFINT (28) disables buffers for external reference use. |
| SCK+, SCK– (21, 22); SDO1±, SDO2± (15–16, 19–20); CLKOUT± (17–18) | LVDS serial interface | Differential I/O supports 105 MHz SCK; requires 100 Ω termination at receiver; CMOS/LVDS (25) selects mode (GND = CMOS, OVDD = LVDS, float = low-power LVDS). |
| OVDD (14), OGND (23) | Digital I/O supply and return | 1.71 V–2.5 V domain powers all digital I/O; must be decoupled to OGND with 0.1 µF capacitor; single-point grounding recommended. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 16-bit SAR channels | Enables simultaneous sampling of two high-bandwidth signals (e.g., current/voltage in motor phase control) without interleaving artifacts. |
| Onboard 4.096 V reference with 20 ppm/°C max drift | Eliminates external reference IC and associated layout complexity while maintaining accuracy over 0°C–70°C operating range. |
| CMOS or LVDS serial interface with skew-matched CLKOUT | Reduces timing uncertainty in FPGA interfacing; CLKOUT provides deterministic latch edge aligned to SDO data valid window. |
| One-cycle latency and 5 Msps throughput | Supports real-time feedback loops with minimal pipeline delay-critical for servo control and adaptive filtering applications. |
| Nap and sleep power modes | Reduces idle power to 5 µW (sleep) or ~10–31 mW (nap), extending battery life in portable instrumentation or reducing thermal load in dense DAQ systems. |
Applications
| Optical Networking Transceiver Monitoring | Multiphase Motor Control Feedback |
|---|---|
Use Scenario: Real-time monitoring of laser bias current and photodiode output in 100G/400G coherent transceivers. IC Role / Device Role / Timing Role: Dual-channel ADC digitizes analog monitor signals simultaneously with 5 Msps rate and 81 dB SNR to detect subtle signal degradation before link failure. Use Value: Enables predictive maintenance and dynamic gain adjustment using high-fidelity, low-latency data-no external reference or level-shifting required due to wide common mode range. | Use Scenario: Sampling phase currents and DC bus voltage in three-phase PMSM drives for field-oriented control (FOC). IC Role / Device Role / Timing Role: Provides synchronized, 16-bit resolution sampling of two current sensors and bus voltage with one-cycle latency to support fast inner-loop current regulation. Use Value: Guarantees no missing codes and ±4 LSB INL across temperature, ensuring precise torque estimation and minimizing torque ripple in industrial servo systems. |
| High-Speed Remote Data Acquisition | Automotive Radar Signal Conditioning |
Use Scenario: Distributed sensor nodes in oil & gas SCADA systems capturing vibration, pressure, and temperature waveforms over long cables. IC Role / Device Role / Timing Role: Differential inputs reject common-mode noise induced on long traces; 8 VP-P input range accommodates unconditioned sensor outputs. Use Value: Eliminates need for front-end instrumentation amplifiers or level shifters-reducing component count, board space, and calibration burden in harsh EMI environments. | Use Scenario: Digitizing IF outputs from 77 GHz automotive radar receivers for chirp-based object detection. IC Role / Device Role / Timing Role: Converts baseband I/Q signals with 10 MHz –3 dB linear bandwidth and 85 dB CMRR to preserve phase coherence between channels. Use Value: Maintains >13 ENOB at 2.2 MHz input frequency, enabling accurate FFT-based range-Doppler mapping without SNR degradation from internal reference noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7606C-16 | 8-channel, parallel/serial interface; ±10 V input range; internal 2.5 V ref; 1 MSPS per channel | Better suited for multi-sensor, lower-speed industrial PLCs; lacks LVDS interface and 5 Msps speed | Select when channel count >2 and system prioritizes ease of microcontroller interfacing over speed. |
| ADS8924B | Single-channel, 20 MSPS, 18-bit; no internal reference; SPI-only CMOS interface; 48-QFN | Higher resolution and speed but no dual-channel integration; requires external reference and level-shifting for bipolar inputs | Select when single-channel ultra-high-resolution sampling is needed and board space allows discrete reference design. |
Compared with AD7606C-16 and ADS8924B, the LTC2323CUFD-16#PBF uniquely balances dual-channel 5 Msps throughput, integrated 4.096 V reference, LVDS timing robustness, and 4 mm × 5 mm footprint-making it optimal for space-constrained, high-speed embedded systems requiring synchronized analog capture without external support components.
Availability
LTC2323CUFD-16#PBF is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking transceivers, and multiphase motor control applications requiring stable component supply, guaranteed 16-bit no-missing-codes performance, and industrial temperature operation (0°C to 70°C).
Supply support for LTC2323CUFD-16#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2323CUFD-16#PBF belongs to the Linear Technology SAR ADC product line, designed specifically for high-speed, high-accuracy data acquisition where low latency, integrated references, and differential noise immunity are essential in demanding real-time systems.
FAQ
What is the operating temperature range for the LTC2323CUFD-16#PBF?
The LTC2323CUFD-16#PBF is rated for 0°C to 70°C (Commercial grade). This is confirmed by the "C" suffix in the part number and the order information table specifying "0°C to 70°C" for the LTC2323CUFD-16#PBF variant. The device achieves full specifications-including ±4 LSB INL and 81 dB SNR-across this range.
Does the LTC2323CUFD-16#PBF require an external reference?
No, the LTC2323CUFD-16#PBF includes two onboard 4.096 V temperature-compensated reference buffers (REFOUT1 and REFOUT2) with 20 ppm/°C max drift. External reference is optional and enabled only when REFINT is grounded; otherwise, the internal reference is active and fully specified for 16-bit performance.
How does the CMOS/LVDS pin (Pin 25) configure the digital interface of the LTC2323CUFD-16#PBF?
Pin 25 (CMOS/LVDS) selects interface mode: grounded for CMOS (single-ended SDO/CLKOUT/SCK), tied to OVDD for standard LVDS (differential signaling), or left floating for low-power LVDS. This hardware-selectable mode eliminates firmware configuration overhead and ensures deterministic I/O behavior at power-up.
What is the minimum acquisition time required for the LTC2323CUFD-16#PBF to achieve full 16-bit accuracy?
The LTC2323CUFD-16#PBF specifies a minimum acquisition time (tACQ) of 28.5 ns across the full temperature range. This value ensures the internal sampling capacitor fully settles to within 1 LSB of final value, supporting the guaranteed 16-bit no-missing-codes specification at 5 Msps sample rate.
Can the LTC2323CUFD-16#PBF operate from a 3.3 V supply while maintaining 5 Msps throughput?
Yes, the LTC2323CUFD-16#PBF is fully specified for 5 Msps operation with VDD = 3.3 V (3.13 V–3.47 V). Power dissipation is 55–58 mW per channel in CMOS mode and 65–86 mW in LVDS mode at this supply, with all AC/DC specifications-including SNR and INL-maintained per datasheet conditions.
LTC2323CUFD-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 5M
- Number of Inputs:
- 2
- Input Type:
- Differential, Pseudo-Differential
- Data Interface:
- LVDS - Serial, Serial
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 3.13V ~ 3.47V, 5V
- Voltage - Supply, Digital:
- 3.13V ~ 3.47V, 5V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 28-QFN (4x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2323CUFD-16#PBF FAQ
1.How can I place an order for LTC2323CUFD-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2323CUFD-16#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 LTC2323CUFD-16#PBF reliable?
The price and inventory of LTC2323CUFD-16#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2323CUFD-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2323CUFD-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2323CUFD-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2323CUFD-16#PBF?
LTC2323CUFD-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2323CUFD-16#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 LTC2323CUFD-16#PBF?
For technical support, including LTC2323CUFD-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2323CUFD-16#PBF requirements.
6.How does Aetrix verify that LTC2323CUFD-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2323CUFD-16#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 LTC2323CUFD-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2323CUFD-16#PBF?
All LTC2323CUFD-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2323CUFD-16#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 LTC2323CUFD-16#PBF part is unused and in its original packaging.
Return procedure for LTC2323CUFD-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2323CUFD-16#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…
