My Inquiry
My Account
Analog Devices Inc. LTC2153CUJ-14#PBF
- Part No.:
- LTC2153CUJ-14#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
LTC2153CUJ-14#PBF.pdf
- Description:
- IC ADC 14BIT PIPELINED 40QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,405
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2153CUJ-14#PBF from Analog Devices (formerly Linear Technology) is a 14-bit, 310Msps pipeline analog-to-digital converter optimized for high-frequency undersampling in communications and instrumentation systems. It delivers 68.8dBFS SNR, 88dB SFDR at 70MHz input, 1.25GHz full-power bandwidth, and operates from a single 1.8V supply with DDR LVDS outputs. It serves as the front-end digitizer in cellular basestations and software-defined radios.
For engineers reviewing the LTC2153CUJ-14#PBF datasheet, LTC2153CUJ-14#PBF pinout, LTC2153CUJ-14#PBF application, or LTC2153CUJ-14#PBF equivalent, key selection considerations include its 6mm × 6mm QFN-40 package, 1.32VP-P differential input range, SPI-configurable LVDS output current (1.75–4.5mA), clock duty cycle stabilizer, and 6-cycle pipeline latency.
Technical Context
The LTC2153CUJ-14#PBF implements a 14-bit pipelined ADC architecture with integrated sample-and-hold (S/H) featuring 1.25GHz –3dB bandwidth and 0.15psRMS acquisition jitter. Its correction logic compensates for capacitor mismatch and comparator offset across temperature, enabling ±1.2LSB INL (typ) and no missing codes over 0°C to 70°C.
Digital interface uses DDR LVDS with seven data pairs (D0_1 through D12_13), OF+/OF– overflow flag, and CLKOUT± clock output. Configuration is performed via a 3-wire SPI port supporting readback, with mode registers controlling LVDS current, clock phase shift (0°/45°/90°/135°), data format (offset binary/2's complement), and digital randomization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit with guaranteed no missing codes over temperature - ensures monotonicity in precision measurement systems. |
| Sampling Rate | 310Msps maximum - supports Nyquist sampling of signals up to 155MHz or high-fidelity undersampling of RF carriers beyond 1GHz. |
| SNR / SFDR | 68.8dBFS SNR and 88dB SFDR at 70MHz input - enables high dynamic range signal capture in SDR and medical imaging front-ends. |
| Input Bandwidth | 1.25GHz full-power bandwidth - allows direct RF sampling of L-band and S-band signals without external IF translation. |
| Power Consumption | 401mW total at 310Msps (190mA VDD + 40mA OVDD in 1.75mA LVDS mode) - balances performance and thermal management in dense FPGA-ADC subsystems. |
| Supply Voltage | Single 1.8V analog (VDD) and 1.8V output (OVDD) supplies - simplifies power delivery and reduces board-level DC/DC count. |
| Pipeline Latency | 6 clock cycles - enables deterministic timing alignment for real-time DSP loop control and FPGA-based digital downconversion. |
Pinout & Package
Package: 40-lead (6mm × 6mm) plastic QFN (UJ), exposed pad (Pin 41) soldered to PCB ground for thermal and electrical integrity. Pin 1 marked by dot; top-side marking "215314".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (1,2) | Analog power supply | 1.8V analog rail; requires local 0.1µF ceramic bypass per pin to minimize switching noise coupling into ADC core. |
| AIN+, AIN– (4,5) | Differential analog input | Accepts 1.32VP-P swing centered at VCM; must be driven differentially with 180° phase relationship and low jitter. |
| ENC+, ENC– (11,12) | Differential encode clock input | Starts conversion on rising/falling edges; supports sine, PECL, LVDS, TTL, CMOS; internal 10kΩ bias to 1.2V. |
| D0_1+ to D12_13+ (16–17,18–19,22–23,24–25,28–29,31–32,33–34) | DDR LVDS data outputs | Seven differential pairs carrying multiplexed even/odd bits; programmable 1.75–4.5mA drive strength and optional 100Ω on-chip termination. |
| CLKOUT+, CLKOUT– (26,27) | Data output clock | Synchronizes DDR LVDS data; phase shiftable by 0°/45°/90°/135° via SPI register A2 when duty cycle stabilizer is enabled. |
| OF+, OF– (14,15) | Overflow/underflow flag | LVDS pair indicating saturation; valid during low phase of CLKOUT+ when CLKINV = 0; same 6-cycle latency as data. |
| PAR/SER (40) | Programming mode select | Ground = serial SPI mode (CS/SCK/SDI/SDO active); VDD = parallel mode (CS/SCK/SDI become logic controls). |
Key Features
| Feature | Design Value |
|---|---|
| Optional clock duty cycle stabilizer | Enables high-performance operation with encode duty cycles from 30% to 70%, eliminating need for external clock conditioning circuitry. |
| Configurable DDR LVDS output current | Seven selectable drive levels (1.75–4.5mA) allow optimization of signal integrity, EMI, and power vs. trace length/load capacitance. |
| Digital output randomizer | XOR-based scrambling of data bits (excluding LSB, OF, CLKOUT) suppresses deterministic spurs caused by digital switching coupling into analog sections. |
| SPI-configurable data format | Runtime selection between offset binary and 2's complement output formats simplifies integration with FPGA soft-core processors or DSP libraries. |
| Low-power sleep and nap modes | Sleep mode draws <5mW (clock disabled); nap mode draws 124mW while preserving configuration - ideal for burst-mode or TDD systems. |
Applications
| Cellular Basestation Receiver | Software Defined Radio (SDR) |
|---|---|
Use Scenario: Digitizing wideband LTE/5G carrier signals at IF or direct RF using undersampling techniques. IC Role / Device Role / Timing Role: Primary front-end ADC capturing 100+ MHz instantaneous bandwidth with minimal noise floor degradation. Use Value: 1.25GHz input bandwidth and 68.8dBFS SNR enable high-order modulation (256-QAM) demodulation without analog preselection filters. | Use Scenario: Reconfigurable radio platform requiring flexible sampling rate, data format, and interface timing across multiple waveforms. IC Role / Device Role / Timing Role: High-speed digitizer interfaced to Xilinx Zynq or Intel Arria FPGA via DDR LVDS, configured dynamically via SPI. Use Value: SPI-controlled phase-shiftable CLKOUT and programmable LVDS current simplify timing closure and reduce FPGA I/O resource usage. |
| Medical Ultrasound Imaging | High-Speed Test Equipment |
Use Scenario: Beamforming channel digitization in portable ultrasound systems requiring low power and high SNR at multi-MHz baseband frequencies. IC Role / Device Role / Timing Role: Channel ADC in multi-channel receive path, synchronized across dozens of channels via common ENC and CLKOUT distribution. Use Value: 6-cycle deterministic latency and <0.15psRMS aperture jitter ensure precise time-of-flight measurements and coherent beam summation. | Use Scenario: Real-time spectrum analyzer or arbitrary waveform generator with >100MHz instantaneous bandwidth and deep memory capture. IC Role / Device Role / Timing Role: Core digitizer feeding high-throughput FPGA FFT engines or high-speed memory controllers. Use Value: DDR LVDS outputs deliver 8.68 Gbps aggregate throughput (14 bits × 310 Msps × 2) with robust noise immunity in noisy lab environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9643BCPZ-250 | 14-bit, 250Msps; lower max sample rate but superior 70.2dBFS SNR and integrated JESD204B interface. | Better suited for JESD204B-based FPGA platforms; lacks DDR LVDS and clock duty cycle stabilizer. | Select when system prioritizes JESD204B lane reduction and ultra-low noise over maximum sample rate and legacy LVDS compatibility. |
| LTC2263IUJ-14#PBF | 14-bit, 105Msps; identical QFN-40 package and SPI interface, but lower power (190mW) and reduced bandwidth (700MHz). | Targeted at cost-sensitive, lower-bandwidth instrumentation where 310Msps is unnecessary. | Select when design constraints require pin-compatible drop-in replacement with relaxed speed and power requirements. |
Compared with AD9643BCPZ-250 and LTC2263IUJ-14#PBF, the LTC2153CUJ-14#PBF uniquely balances 310Msps speed, 1.25GHz RF input capability, and DDR LVDS simplicity-making it optimal for legacy FPGA designs needing maximum undersampling flexibility without JESD204B complexity.
Availability
LTC2153CUJ-14#PBF is available at Aetrix Electronics and suitable for cellular basestation receiver design, software-defined radio development, medical ultrasound imaging, and high-speed test equipment requiring stable component supply and long-term manufacturability.
Supply support for LTC2153CUJ-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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2153CUJ-14#PBF belongs to ADI's high-speed precision ADC product line, engineered specifically for demanding RF sampling applications where wide input bandwidth, low jitter, and deterministic latency are critical to system-level performance.
FAQ
What is the operating temperature range for the LTC2153CUJ-14#PBF?
The LTC2153CUJ-14#PBF is rated for 0°C to 70°C ambient operation (C-grade). This is confirmed in the Absolute Maximum Ratings table and Order Information section, where "CUJ" denotes the commercial temperature grade. The part is not rated for industrial (–40°C to 85°C) operation - that variant is LTC2153IUJ-14#PBF.
Does the LTC2153CUJ-14#PBF support both internal and external voltage references?
Yes, the LTC2153CUJ-14#PBF supports both reference modes. Connecting SENSE to VDD selects the internal 1.25V reference and sets the input range to ±0.66V. Applying an external 1.23V–1.27V reference to SENSE selects external reference mode and scales the input range to ±0.528 × VSENSE. Both modes are fully specified in the Converter Characteristics table.
How many LVDS data output pairs does the LTC2153CUJ-14#PBF provide?
The LTC2153CUJ-14#PBF provides seven DDR LVDS data output pairs: D0_1, D2_3, D4_5, D6_7, D8_9, D10_11, and D12_13. Each pair carries two time-multiplexed bits (even on CLKOUT low, odd on CLKOUT high), delivering all 14 data bits plus OF flag across nine differential pairs including OF+/OF– and CLKOUT+/CLKOUT–.
Can the LTC2153CUJ-14#PBF operate with a non-50% encode clock duty cycle?
Yes, the LTC2153CUJ-14#PBF includes an optional clock duty cycle stabilizer that accepts encode inputs with duty cycles from 30% to 70% and generates an internal 50% clock for sampling. When enabled (via SPI Register A2 or CS in parallel mode), it eliminates external duty cycle correction circuitry and maintains full 68.8dBFS SNR performance at 310Msps.
Is the LTC2153CUJ-14#PBF pin-compatible with any lower-resolution variants?
Yes, the LTC2153CUJ-14#PBF is explicitly stated as pin-compatible with the 12-bit LTC2152 family (e.g., LTC2152CUJ-12#PBF) in the Features section. Both share identical 40-lead QFN-6×6mm packaging, pin functions, and footprint - enabling resolution-scaling in existing PCB layouts without redesign.
LTC2153CUJ-14#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 310M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- LVDS - 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:
- 1.74V ~ 1.9V
- Voltage - Supply, Digital:
- 1.74V ~ 1.9V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 40-QFN (6x6)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2153CUJ-14#PBF FAQ
1.How can I place an order for LTC2153CUJ-14#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2153CUJ-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 LTC2153CUJ-14#PBF reliable?
The price and inventory of LTC2153CUJ-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 LTC2153CUJ-14#PBF is usually 5 days.
3.What payment methods are accepted for LTC2153CUJ-14#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2153CUJ-14#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2153CUJ-14#PBF?
LTC2153CUJ-14#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2153CUJ-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 LTC2153CUJ-14#PBF?
For technical support, including LTC2153CUJ-14#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2153CUJ-14#PBF requirements.
6.How does Aetrix verify that LTC2153CUJ-14#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2153CUJ-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 LTC2153CUJ-14#PBF meets industry standards.
7.What is the process for return or replacement of LTC2153CUJ-14#PBF?
All LTC2153CUJ-14#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2153CUJ-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 LTC2153CUJ-14#PBF part is unused and in its original packaging.
Return procedure for LTC2153CUJ-14#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2153CUJ-14#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…
