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Analog Devices Inc. LTC2232CUK#TRPBF
- Part No.:
- LTC2232CUK#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
LTC2232CUK#TRPBF.pdf
- Description:
- IC ADC 10BIT PIPELINED 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,838
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Product details
Overview
LTC2232CUK#TRPBF from Analog Devices (formerly Linear Technology) is a 10-bit, 105 Msps high-speed analog-to-digital converter optimized for undersampling wideband IF signals in communications infrastructure. It delivers 61 dB SNR at 140 MHz input, 75 dB SFDR up to 200 MHz, and features 775 MHz full-power bandwidth, single 3.3 V supply operation, and selectable ±0.5 V or ±1 V input ranges. It is deployed in cable head-end receivers and power amplifier linearization loops where low jitter (0.15 psRMS) and no missing codes are critical.
For engineers reviewing the LTC2232CUK#TRPBF datasheet, LTC2232CUK#TRPBF pinout, LTC2232CUK#TRPBF application, or LTC2232CUK#TRPBF equivalent, key selection criteria include its 105 Msps sampling rate, differential ENC± clock interface, flexible output voltage range (0.5–3.6 V), shutdown/nap modes, and 48-lead 7 mm × 7 mm QFN package with exposed thermal pad.
Technical Context
The LTC2232CUK#TRPBF employs a five-stage CMOS pipelined ADC architecture with integrated sample-and-hold, correction logic, and flexible reference routing. Its differential analog input path supports both high-impedance buffered and direct-coupled drive, while the ENC+/ENC− differential encode interface enables robust timing acquisition with optional duty cycle stabilization.
It features separate analog (VDD) and digital output (OVDD) supplies, allowing independent logic-level setting (0.5–3.6 V) for interfacing with FPGAs or ASICs. The device includes dedicated OF (over/underflow), CLOCKOUT (data-valid strobe), and MODE pins for output format (offset binary/2's complement) and clock conditioning control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit, no missing codes - guarantees monotonic transfer function for precision measurement and closed-loop control. |
| Sampling Rate | 105 Msps - supports Nyquist-sampled baseband or undersampled IF signals up to ~50 MHz without aliasing. |
| SNR @ 140 MHz | 61 dBFS - enables high-fidelity digitization of wideband RF carriers in cable DOCSIS 3.1/4.0 upstream channels. |
| SFDR @ 200 MHz | 75 dBFS - suppresses spurious tones critical for adjacent-channel interference mitigation in multi-carrier systems. |
| Full-Power BW | 775 MHz - preserves signal integrity for fast-rising IF transients and wide instantaneous bandwidth applications. |
| Aperture Jitter | 0.15 psRMS - limits noise floor degradation when undersampling GHz-range IFs (e.g., 1.2 GHz LTE bands). |
| Power Dissipation | 475 mW @ 105 Msps - balances performance and thermal management in dense RF front-end modules. |
Pinout & Package
Package: 48-lead 7 mm × 7 mm plastic QFN with exposed thermal pad (Pin 49 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+, AIN− (1, 2) | Differential analog input | Accepts ±0.5 V or ±1 V differential signal; common-mode range 1.0–1.9 V; high-impedance input with 1.6 pF sampling capacitance. |
| ENC+, ENC− (16, 17) | Differential encode clock input | Sampled on rising/falling edges; supports PECL/LVDS/TTL/CMOS; optional duty cycle stabilizer improves timing margin. |
| D0–D9 (25, 26, 29–31, 34–36, 39, 40) | Parallel digital outputs | 10-bit MSB-first offset binary or 2's complement; output voltage swing set by OVDD (0.5–3.6 V); pipeline latency = 5 cycles. |
| SHDN, OE (18, 19) | Power mode control | SHDN = VDD + OE = VDD → sleep mode (2 mW); SHDN = VDD + OE = GND → nap mode (35 mW); both GND → active mode. |
| CLOCKOUT (20) | Data-valid strobe output | Falling edge aligns with valid D0–D9 data; tC = 1.3–4 ns delay from ENC edge; enables synchronous capture in FPGA logic. |
| OF (41) | Over/underflow flag | Active-high pulse indicates input exceeded ±FS range; used for AGC feedback or saturation detection in real-time signal paths. |
| MODE (42) | Output format & stabilizer control | Voltage-selectable: 0 V → offset binary + stabilizer off; 2/3 VDD → 2's complement + stabilizer on - configures interface without reprogramming. |
| SENSE (43) | Input range programming | Connect to VCM → ±0.5 V range; to VDD → ±1 V range; to external 0.5–1.0 V → ±VSENSE - enables dynamic range optimization per signal level. |
Key Features
| Feature | Design Value |
|---|---|
| No missing codes | Guaranteed monotonicity across full temperature range (0°C to 70°C) ensures reliable code transitions in closed-loop feedback systems. |
| Selectably stabilized clock duty cycle | Enables high-performance sampling with non-50% clock sources (e.g., PLL outputs), eliminating need for external duty-cycle correction circuitry. |
| Separate OVDD supply (0.5–3.6 V) | Allows direct interface to 1.8 V, 2.5 V, or 3.3 V logic without level shifters - reduces BOM count and signal integrity risk. |
| Low 0.12 LSBRMS transition noise | Minimizes quantization uncertainty in high-resolution amplitude measurements, improving ENOB stability across input frequencies. |
| Flexible reference architecture | Supports internal ±0.5 V/±1 V references or external reference via REFHA/REFHB/REFLA/REFLB pins - simplifies system-level calibration. |
| 5-cycle pipeline latency | Predictable, fixed delay enables deterministic timing closure in real-time DSP pipelines and digital predistortion (DPD) implementations. |
Applications
| Cable Head-End Receiver | Wireless Base Station IF Digitization |
|---|---|
|
Use Scenario: Digitizing multiple upstream DOCSIS channels (5–85 MHz) in a shared analog front-end before demodulation and FEC decoding. IC Role / Device Role / Timing Role: High-speed ADC capturing composite QAM signals with minimal harmonic distortion and jitter-induced noise floor elevation. Use Value: 75 dB SFDR prevents intermodulation between closely spaced upstream carriers; 61 dB SNR maintains MER > 40 dB for 256-QAM operation. |
Use Scenario: Sampling 122.88 MHz IF outputs from quadrature demodulators in LTE/FDD-TDD macrocell radios prior to digital downconversion. IC Role / Device Role / Timing Role: Undersampling ADC operating at 105 Msps to capture 2× 20 MHz LTE carriers centered at 122.88 MHz with 0.15 psRMS aperture jitter. Use Value: 775 MHz full-power bandwidth preserves group delay flatness across 40 MHz instantaneous bandwidth; low power enables dense channel packing. |
| Power Amplifier Linearization | Communications Test Equipment |
|
Use Scenario: Capturing PA output for real-time digital predistortion (DPD) coefficient adaptation in GaN-based mmWave transmitters. IC Role / Device Role / Timing Role: Feedback-path ADC acquiring PA output spectrum with sufficient SFDR to resolve distortion products 75 dB below carrier. Use Value: No missing codes and ±0.15 LSB INL ensure accurate error vector magnitude (EVM) computation; shutdown mode reduces idle power during calibration pauses. |
Use Scenario: Signal acquisition stage in high-speed bit-error-rate testers (BERTs) and vector signal analyzers requiring wide dynamic range and low latency. IC Role / Device Role / Timing Role: Front-end digitizer handling multi-GHz IF inputs via undersampling, synchronized to instrument-grade clock generators. Use Value: CLOCKOUT strobe provides deterministic data capture timing; MODE/SENSE pins enable rapid reconfiguration between test profiles without hardware change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9215BCPZ-105 | 10-bit, 105 Msps; 66 dB SNR @ 70 MHz; requires 1.8 V/3.3 V dual supply; no integrated duty cycle stabilizer. | Better SNR at lower IFs but degrades faster above 100 MHz; lacks SENSE/MODE flexibility for input range and output format. | Prefer LTC2232CUK#TRPBF when undersampling >100 MHz IFs or requiring single-supply simplicity and programmable range/format. |
| LTC2233CUK#TRPBF | Same family, pin-compatible; 80 Msps max; 366 mW power; identical AC specs at reduced rate. | Lower power and cost for applications not requiring 105 Msps - e.g., narrowband IF digitization or legacy DOCSIS 3.0 systems. | Choose LTC2232CUK#TRPBF over LTC2233CUK#TRPBF only when full 105 Msps bandwidth and associated SFDR/SNR performance are required. |
Compared with AD9215BCPZ-105, the LTC2232CUK#TRPBF offers superior SFDR above 100 MHz and integrated clock conditioning, while LTC2233CUK#TRPBF provides a lower-power, drop-in alternative when 105 Msps is unnecessary - enabling design reuse with simplified thermal and layout constraints.
Availability
LTC2232CUK#TRPBF is available at Aetrix Electronics and suitable for cable head-end systems, wireless infrastructure equipment, and communications test instrumentation requiring stable component supply, long-term obsolescence management, and traceable sourcing.
Supply support for LTC2232CUK#TRPBF 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 RF ICs, serving industrial, automotive, communications, and healthcare markets.
The LTC2232CUK#TRPBF belongs to Linear's high-speed ADC product line, engineered specifically for demanding communications infrastructure applications requiring wide bandwidth, low jitter, and flexible interface configuration without sacrificing power efficiency.
FAQ
What is the operating temperature range for the LTC2232CUK#TRPBF?
The LTC2232CUK#TRPBF is specified for commercial operation from 0°C to 70°C (C-grade). Its DC accuracy - including ±0.8 LSB INL and ±0.6 LSB DNL - is guaranteed across this full range, making it suitable for indoor telecom equipment and lab-grade instruments where ambient conditions are controlled. The part marking "CUK" explicitly denotes the C-grade temperature rating.
Does the LTC2232CUK#TRPBF support single-ended analog input?
Yes, the LTC2232CUK#TRPBF supports single-ended analog input via AIN+ referenced to AIN− tied to VCM (1.6 V), though with degraded harmonic performance versus differential drive. The datasheet specifies ±0.5 LSB INL and ±0.1 LSB DNL for single-ended operation - acceptable for cost-sensitive applications where THD > −75 dB is sufficient, such as broadband monitoring receivers.
How does the MODE pin configure output format and clock stabilization on the LTC2232CUK#TRPBF?
The MODE pin on the LTC2232CUK#TRPBF uses four voltage thresholds: 0 V selects offset binary output with duty cycle stabilizer disabled; 1/3 VDD enables stabilizer with offset binary; 2/3 VDD enables stabilizer with 2's complement; VDD disables stabilizer with 2's complement. This eliminates firmware dependency for interface configuration and allows hardware-selectable trade-offs between timing robustness and power.
What is the purpose of the CLOCKOUT signal on the LTC2232CUK#TRPBF?
The CLOCKOUT signal on the LTC2232CUK#TRPBF is a data-valid strobe that falls synchronously with stable D0–D9 output data, with tC = 1.3–4 ns delay from ENC edge. It enables zero-setup/hold-time capture in FPGA fabric using the falling edge, eliminating external delay matching and simplifying timing closure in high-speed digital interfaces.
Can the LTC2232CUK#TRPBF operate with an external reference voltage?
Yes, the LTC2232CUK#TRPBF supports external reference via REFHA/REFHB/REFLA/REFLB pins. When an external reference >0.5 V and <1.0 V is applied to SENSE, the input range becomes ±VSENSE. This allows precise scaling for sensor interfaces or calibrated test equipment, while retaining the internal 1.6 V VCM bias for optimal common-mode rejection.
LTC2232CUK#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 105M
- Number of Inputs:
- 1
- Input Type:
- Differential, Single Ended
- Data Interface:
- 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:
- 3.1V ~ 3.5V
- Voltage - Supply, Digital:
- 3.1V ~ 3.5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-QFN (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2232CUK#TRPBF FAQ
1.How can I place an order for LTC2232CUK#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2232CUK#TRPBF 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 LTC2232CUK#TRPBF reliable?
The price and inventory of LTC2232CUK#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2232CUK#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2232CUK#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2232CUK#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2232CUK#TRPBF?
LTC2232CUK#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2232CUK#TRPBF 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 LTC2232CUK#TRPBF?
For technical support, including LTC2232CUK#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2232CUK#TRPBF requirements.
6.How does Aetrix verify that LTC2232CUK#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2232CUK#TRPBF 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 LTC2232CUK#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2232CUK#TRPBF?
All LTC2232CUK#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2232CUK#TRPBF, 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 LTC2232CUK#TRPBF part is unused and in its original packaging.
Return procedure for LTC2232CUK#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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