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Analog Devices Inc. LTC2364CMS-16#PBF
- Part No.:
- LTC2364CMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2364CMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,229
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Product details
Overview
LTC2364CMS-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit pseudo-differential unipolar successive approximation register (SAR) ADC with 250ksps throughput, ±0.75LSB INL max, 94.7dB SNR (typ), and 3.4mW power consumption at full speed - deployed in high-speed data acquisition systems requiring precision, low latency, and wide dynamic range.
For engineers reviewing the LTC2364CMS-16#PBF datasheet, LTC2364CMS-16#PBF pinout, LTC2364CMS-16#PBF application, or LTC2364CMS-16#PBF equivalent, key selection criteria include guaranteed no-missing-codes at 16 bits, internal conversion clock eliminating external timing constraints, SPI-compatible serial interface with daisy-chain mode, and operation across 0°C to 70°C with 2.5V VDD and 1.8V–5V OVDD logic compatibility.
Technical Context
The LTC2364CMS-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, sampling the IN+–IN– voltage difference against VREF (2.5V–5.1V) without pipeline delay or cycle latency. Its internal oscillator fixes tCONV at 1.9–3µs, enabling deterministic timing for real-time control loops.
It operates in two distinct phases: acquisition (where 45pF input capacitance samples the pseudo-differential signal through ~40Ω switch RON) and conversion (successive binary search using VREF/2, VREF/4, ..., VREF/65536). Auto power-down between conversions reduces current to 0.9µA, scaling dynamically with sample rate.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels for high-fidelity signal digitization. |
| Sampling Rate | 250ksps - supports real-time capture of signals up to 125kHz Nyquist bandwidth. |
| SNR | 94.7dB (typ, fIN = 2kHz, VREF = 5V) - enables >15.7 effective number of bits (ENOB) in precision measurement. |
| INL | ±0.75LSB (max) - ensures monotonicity and accurate end-point linearity for calibration-critical applications. |
| Power @ 250ksps | 3.4mW (VDD = 2.5V, OVDD = 2.5V) - allows battery-powered instrumentation with minimal thermal load. |
| Reference Range | 2.5V to 5.1V - permits flexible full-scale adjustment while maintaining 76µV LSB (at 5V). |
| Operating Temp | 0°C to 70°C - qualified for commercial-grade embedded systems and test equipment. |
Pinout & Package
Package: 16-lead MSOP (4.0mm × 3.0mm), exposed pad not present (DFN variant has exposed GND pad; MSOP does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | Low = normal mode (RDL/SDI controls SDO enable); high = daisy-chain mode (RDL/SDI becomes SDI input). |
| VDD (2) | Analog supply | 2.375V–2.625V 2.5V rail powering core ADC; requires 10µF ceramic bypass to GND. |
| GND (3,6,10,16) | Ground reference | Four dedicated GND pins minimize ground bounce and improve PSRR in high-speed sampling. |
| IN+ (4) | Pseudo-differential input (+) | Accepts 0V to VREF relative to IN–; 45pF input capacitance during acquisition requires low-Z drive. |
| IN– (5) | Pseudo-differential input (–) | Common-mode sense node; ±100mV range w.r.t. GND; must connect to ground plane or remote sense point. |
| REF (7,8) | Reference input | Dual-pin connection for 2.5V–5.1V external reference; requires 47µF X5R ceramic decoupling at pin. |
| CNV (9) | Convert trigger | Rising-edge initiates acquisition + conversion; no minimum pulse width required beyond 20ns high time. |
| BUSY (11) | Status indicator | Active-high open-drain output signaling conversion in progress; synchronized to CNV edge. |
| RDL/SDI (12) | Serial control/data input | Function depends on CHAIN state; in chain mode, accepts MSB-first daisy-chain data from upstream ADC. |
| SCK (13) | Serial clock | Accepts 10ns min period (100MHz max); rising edge clocks SDO output and latches SDI input. |
| SDO (14) | Serial data output | MSB-first straight-binary output; tri-state controlled by RDL/SDI in normal mode; always active in chain mode. |
| OVDD (15) | I/O supply | 1.71V–5.25V logic interface supply; sets VIH/VIL thresholds and drives SDO/SCK/RDL/SDI/BUSY levels. |
Key Features
| Feature | Design Value |
|---|---|
| No missing codes at 16 bits | Guaranteed monotonic transfer function across full temperature range - eliminates code ambiguities in closed-loop control. |
| Internal conversion clock | Eliminates need for external timing circuitry or master clock synchronization - simplifies PCB layout and system timing design. |
| Daisy-chain SPI mode | Enables multi-ADC configurations with single SCK/SDO bus - reduces GPIO count and routing complexity in channel-dense systems. |
| Auto power-down between conversions | Reduces idle current to 0.9µA - extends battery life in intermittent-sampling applications like portable DMMs or sensor loggers. |
| Pseudo-differential input architecture | Rejects common-mode noise on IN+/IN– pair while supporting unipolar 0V–VREF range - improves EMI immunity without dual-supply op amps. |
Applications
| Medical Imaging Signal Chain | Industrial Process Monitoring |
|---|---|
Use Scenario: Digitizing analog outputs from ultrasound transducer front-ends or MRI gradient coil sensors at 250ksps with minimal added noise. IC Role / Device Role / Timing Role: Primary high-speed, high-SNR ADC capturing baseband RF or low-frequency bio-signals with deterministic 4µs inter-conversion timing. Use Value: 94.7dB SNR preserves weak signal integrity; ±0.75LSB INL ensures accurate amplitude mapping for diagnostic image reconstruction. |
Use Scenario: High-precision monitoring of pressure, temperature, or flow transducers in PLC I/O modules operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: Isolated analog input stage ADC interfacing via SPI to ARM Cortex-M microcontroller with daisy-chained multi-channel configuration. Use Value: Pseudo-differential inputs reject common-mode noise from 4–20mA loops; 2.5V supply and 3.4mW dissipation simplify thermal management in sealed enclosures. |
| Portable Test Equipment | Automated Test Equipment (ATE) |
Use Scenario: Battery-powered handheld oscilloscopes or spectrum analyzers requiring >15-bit ENOB and sub-µs latency for real-time waveform capture. IC Role / Device Role / Timing Role: Core sampling engine with internal clock and zero-latency conversion - enables direct memory-mapped acquisition without FIFO buffering. Use Value: 3.4µW power at 250sps extends runtime between charges; 16-lead MSOP footprint minimizes board area in compact form factors. |
Use Scenario: Channel-dense ATE systems performing parallel parametric testing on semiconductor devices with strict timing repeatability. IC Role / Device Role / Timing Role: Synchronized multi-ADC node in daisy-chain topology, triggered by centralized CNV signal for simultaneous sampling across 8–16 channels. Use Value: Guaranteed 250ksps throughput with no missing codes ensures pass/fail decision accuracy; SPI interface simplifies FPGA-based controller integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1MSPS, single-ended input only; 2.5V supply; 92.5dB SNR; no daisy-chain mode. | Higher speed but lacks pseudo-differential input and SPI daisy-chain - unsuitable for noise-prone sensor interfaces requiring common-mode rejection. | Select when maximum throughput >250ksps is critical and input signals are well-buffered single-ended sources. |
| AD7960BCPZ-RL7 | 18-bit, 5MSPS, pseudo-differential; 5V supply; 95.5dB SNR; LVDS interface; requires external clock. | Higher resolution and speed but consumes 33mW; LVDS interface increases layout complexity and power vs. SPI. | Select for ultra-high-precision applications where 18-bit resolution justifies higher cost, power, and interface overhead. |
Compared with ADS8860IDRCT and AD7960BCPZ-RL7, the LTC2364CMS-16#PBF uniquely balances 250ksps speed, 94.7dB SNR, pseudo-differential noise immunity, and integrated timing - making it optimal for space-constrained, low-power, noise-sensitive industrial and medical data acquisition where SPI simplicity and deterministic latency are essential.
Availability
LTC2364CMS-16#PBF is available at Aetrix Electronics and suitable for medical imaging signal chains, industrial process monitoring systems, and portable test equipment requiring stable component supply, long-term manufacturability, and guaranteed commercial-temperature performance.
Supply support for LTC2364CMS-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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs for precision measurement, industrial automation, and communications.
The LTC2364-16 belongs to Linear's precision SAR ADC product line, engineered for applications demanding high SNR, low power, and deterministic timing - especially in portable instrumentation, medical diagnostics, and high-channel-count data loggers.
FAQ
What is the maximum recommended reference voltage for the LTC2364CMS-16#PBF?
The LTC2364CMS-16#PBF supports VREF from 2.5V to 5.1V per absolute maximum ratings and electrical specifications. Operating at 5.1V yields the largest full-scale range and best SNR (94.7dB typ), while 2.5V maintains functionality with reduced LSB size (38µV) and slightly lower SNR (90.7dB typ). Exceeding 5.1V risks damage or specification violation.
Does the LTC2364CMS-16#PBF require an external clock for conversion timing?
No - the LTC2364CMS-16#PBF integrates an internal oscillator that sets conversion time (tCONV = 1.9–3µs), eliminating dependency on external clock sources. Only the SPI serial interface requires an external SCK signal; the core sampling and conversion timing is fully self-contained within the LTC2364CMS-16#PBF.
Can the LTC2364CMS-16#PBF operate with a 1.8V OVDD supply while using 2.5V VDD?
Yes - the LTC2364CMS-16#PBF explicitly supports independent OVDD (1.71V–5.25V) and VDD (2.375V–2.625V) supplies. With OVDD = 1.8V, digital I/O thresholds scale accordingly (VIH = 1.44V, VIL = 0.36V), enabling seamless interfacing to 1.8V FPGAs or microcontrollers while maintaining 2.5V analog performance.
What is the purpose of the CHAIN pin on the LTC2364CMS-16#PBF?
The CHAIN pin (Pin 1) configures serial interface behavior: when low, RDL/SDI acts as a bus-enable input controlling SDO tri-state; when high, RDL/SDI becomes a serial data input for daisy-chain mode, allowing multiple LTC2364CMS-16#PBF devices to share one SCK/SDO bus with cascaded data output - reducing controller pin count in multi-channel systems.
Is the LTC2364CMS-16#PBF pin-compatible with other variants in the LTC2364-16 family?
Yes - all LTC2364-16 variants (e.g., LTC2364IMS-16#PBF, LTC2364HMS-16#PBF, LTC2364CDE-16#PBF) share identical 16-lead MSOP or DFN pinouts and electrical interface. The LTC2364CMS-16#PBF differs only in temperature grade (0°C to 70°C) and packaging (MSOP), enabling drop-in replacement where commercial-grade operation suffices.
LTC2364CMS-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.375V ~ 2.625V
- Voltage - Supply, Digital:
- 2.375V ~ 2.625V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2364CMS-16#PBF FAQ
1.How can I place an order for LTC2364CMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2364CMS-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 LTC2364CMS-16#PBF reliable?
The price and inventory of LTC2364CMS-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 LTC2364CMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2364CMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2364CMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2364CMS-16#PBF?
LTC2364CMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2364CMS-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 LTC2364CMS-16#PBF?
For technical support, including LTC2364CMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2364CMS-16#PBF requirements.
6.How does Aetrix verify that LTC2364CMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2364CMS-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 LTC2364CMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2364CMS-16#PBF?
All LTC2364CMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2364CMS-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 LTC2364CMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2364CMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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