My Inquiry
My Account
Analog Devices Inc. LTC2368CMS-16#PBF
- Part No.:
- LTC2368CMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2368CMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,830
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2368CMS-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 1 Msps pseudo-differential unipolar successive approximation register (SAR) ADC operating from a single 2.5V supply. It delivers ±0.75 LSB INL max, guaranteed no missing codes at 16 bits, and 94.7 dB SNR (typ) at 2 kHz input with 5 V reference - enabling high-fidelity data acquisition in compact, low-power systems such as portable instrumentation and industrial process control.
For engineers reviewing the LTC2368CMS-16#PBF datasheet, LTC2368CMS-16#PBF pinout, LTC2368CMS-16#PBF application, or LTC2368CMS-16#PBF equivalent, key selection considerations include its 16-lead MSOP package, 1.8 V to 5 V I/O compatibility, daisy-chain SPI interface, internal conversion clock, and guaranteed operation from 0°C to 70°C.
Technical Context
The LTC2368CMS-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, sampling pseudo-differential inputs (IN+, IN–) over 0 V to VREF with VREF programmable from 2.5 V to 5.1 V. Its acquisition phase draws transient current into 45 pF input capacitance, while conversion uses an internal oscillator - eliminating external timing constraints.
It supports two operational modes via the CHAIN pin: normal mode (RDL/SDI acts as bus enable) and daisy-chain mode (RDL/SDI functions as serial data input). The SPI-compatible serial interface operates with no pipeline delay or cycle latency, delivering full 16-bit results on each SCK rising edge in straight binary format.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - provides 65,536 discrete output levels for high dynamic range digitization. |
| Sampling Rate | 1 Msps - enables real-time capture of signals up to ~400 kHz (Nyquist-limited) without undersampling. |
| INL (Max) | ±0.75 LSB - ensures monotonicity and <0.001% full-scale linearity error across temperature. |
| SNR (Typ) | 94.7 dB at fIN = 2 kHz, VREF = 5 V - corresponds to ~15.8 effective bits (ENOB) under test conditions. |
| Power Dissipation | 13.5 mW at 1 Msps - enables battery-operated designs with thermal budget ≤150 mW in MSOP package. |
| Reference Range | 2.5 V to 5.1 V - allows flexible scaling of input full-scale range (e.g., 0–5 V or 0–2.5 V) without external gain stages. |
| Operating Temp | 0°C to 70°C - qualified for commercial-grade embedded instrumentation and ATE applications. |
Pinout & Package
Package: 16-lead plastic MSOP (small outline, 3 mm × 4.9 mm), exposed pad not present (DFN variant has exposed GND pad; MSOP does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High = daisy-chain mode (RDL/SDI becomes SDI); Low = normal mode (RDL/SDI enables SDO tri-state). |
| VDD (2) | Analog power supply | 2.5 V ±62.5 mV supply; must be bypassed with 10 µF ceramic capacitor to GND. |
| GND (3,6,10,16) | Analog/digital ground | Four dedicated GND pins minimize ground bounce and improve PSRR in mixed-signal layout. |
| IN+ (4) | Pseudo-differential analog input (+) | Accepts 0 V to VREF; sees 45 pF input capacitance and 40 Ω switch resistance during acquisition. |
| IN– (5) | Pseudo-differential analog input (–) | Common-mode sense node; input range ±100 mV w.r.t. GND; must connect to local ground plane. |
| REF (7,8) | Reference voltage input | Dual-pin connection for low-impedance decoupling; requires 47 µF X5R ceramic (0805) close to pins. |
| CNV (9) | Convert trigger | Rising-edge initiated conversion; powers up ADC and starts acquisition/conversion sequence. |
| BUSY (11) | Conversion status indicator | Active-high open-drain signal; asserts for 460–527 ns, indicating conversion in progress. |
| RDL/SDI (12) | Configurable serial I/O | Function depends on CHAIN state; in chain mode, receives serial data from upstream ADC. |
| SCK (13) | Serial clock input | Supports up to 100 MHz clock (10 ns period); controls timing of SDO data output and SDI sampling. |
| SDO (14) | Serial data output | MSB-first, straight-binary 16-bit result; valid within 9.5 ns after SCK↑ (CL = 20 pF). |
| OVDD (15) | Digital I/O supply | 1.71 V to 5.25 V logic interface supply; sets VIH/VIL thresholds and drives SDO/SCK/RDL 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 | Removes need for external timing circuitry or master clock synchronization - simplifies PCB layout and reduces BOM count. |
| Auto power-down between conversions | Reduces idle power to 13.5 µW at 1 kSPS - extends battery life in burst-sampling instrumentation. |
| SPI-compatible daisy-chain mode | Enables multi-ADC synchronization with single SCK and CNV lines - ideal for channel expansion in DAQ systems. |
| 1.8 V to 5 V I/O voltage support | Interoperates directly with FPGA, MCU, or ASIC I/O banks without level shifters - lowers system complexity and cost. |
Applications
| Medical Imaging Signal Chain | Industrial Process Monitoring |
|---|---|
Use Scenario: Digitizing low-noise analog outputs from ultrasound transducer front-ends or MRI gradient amplifiers requiring >90 dB SNR. IC Role / Device Role / Timing Role: Primary high-speed, high-accuracy ADC capturing baseband sensor signals at up to 1 Msps with minimal latency. Use Value: 94.7 dB SNR and ±0.75 LSB INL preserve diagnostic image fidelity; 16-bit resolution resolves subtle tissue contrast gradients. | Use Scenario: Sampling analog outputs from pressure, temperature, and flow sensors in PLC-based factory automation systems. IC Role / Device Role / Timing Role: High-reliability ADC interfacing with isolated analog front-ends in noisy industrial environments. Use Value: Guaranteed operation to 70°C and robust CMRR (>80 dB at 500 kHz) suppress common-mode noise from motor drives and switching supplies. |
| Portable Test Equipment | Automated Test Equipment (ATE) |
Use Scenario: Embedded digitizer in handheld oscilloscopes or multimeters where size, power, and accuracy are critical. IC Role / Device Role / Timing Role: Core ADC in battery-powered instruments needing fast throughput and low self-heating. Use Value: 13.5 mW at 1 Msps and MSOP package (3 mm × 4.9 mm) enable compact, fanless designs with >8-hour runtime on Li-ion cells. | Use Scenario: Channel card in modular ATE systems requiring synchronized multi-channel sampling with deterministic latency. IC Role / Device Role / Timing Role: Precision ADC in high-throughput test heads with daisy-chained configuration for timing-aligned captures. Use Value: No cycle latency and daisy-chain SPI allow precise inter-channel skew control (<1 ns jitter) across 8+ channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ-RL7 | 18-bit, 5 Msps, 2.5 V supply, LVDS interface; higher resolution/speed but requires external reference and clock. | Used in metrology-grade benchtop analyzers where ENOB >16.5 is required; not drop-in due to interface and pinout mismatch. | Select when absolute precision >96 dB SNR and >5 Msps throughput outweigh MSOP footprint and simplicity. |
| ADS8860IDRCT | 16-bit, 1 Msps, 2.5–5 V supply, SPI interface; lower power (3.5 mW), no daisy-chain, only 10-lead VSSOP package. | Targeted at ultra-low-power sensor nodes; lacks CHAIN/BUSY pins and REF dual-pin layout - limits noise-sensitive designs. | Choose for cost-sensitive, space-constrained IoT endpoints where daisy-chain and 94.7 dB SNR are not required. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2368CMS-16#PBF uniquely balances 16-bit integrity, 1 Msps throughput, integrated timing, and MSOP packaging - making it optimal for mid-tier portable instrumentation where design simplicity, thermal management, and proven SNR performance are prioritized.
Availability
LTC2368CMS-16#PBF is available at Aetrix Electronics and suitable for medical imaging signal chains, industrial process monitoring, and portable test equipment requiring stable component supply and commercial-temperature-grade reliability.
Supply support for LTC2368CMS-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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2368-16 belongs to ADI's precision SAR ADC product line, engineered for applications demanding high speed, low power, and uncompromised DC/AC accuracy - especially where board space, thermal envelope, and timing simplicity constrain system architecture.
FAQ
What is the maximum recommended reference voltage for the LTC2368CMS-16#PBF?
The LTC2368CMS-16#PBF supports a reference voltage range of 2.5 V to 5.1 V. Exceeding 5.1 V on the REF pins violates Absolute Maximum Ratings and may cause permanent damage. At 5.0 V reference, the LSB size is 76.3 µV, enabling sub-100 µV resolution in high-precision measurement systems using the LTC2368CMS-16#PBF.
Does the LTC2368CMS-16#PBF require external clocking for conversion timing?
No, the LTC2368CMS-16#PBF features an internal oscillator that sets conversion time - eliminating the need for external clock generation or synchronization. This simplifies system design and improves timing robustness. The internal clock ensures consistent 460–527 ns conversion time across temperature and supply variations, as specified for the LTC2368CMS-16#PBF.
Can the LTC2368CMS-16#PBF operate with a 1.8 V OVDD supply while using a 2.5 V VDD supply?
Yes, the LTC2368CMS-16#PBF fully supports independent OVDD (1.71 V to 5.25 V) and VDD (2.375 V to 2.625 V) supplies. With OVDD = 1.8 V, digital I/O thresholds scale accordingly (VIH = 1.44 V, VIL = 0.36 V), allowing seamless interfacing to 1.8 V FPGAs or microcontrollers without level translation - a confirmed capability of the LTC2368CMS-16#PBF.
What is the purpose of the dual REF pins (7 and 8) on the LTC2368CMS-16#PBF?
The dual REF pins (7 and 8) provide low-impedance, symmetrical connection points for the external reference voltage, minimizing voltage drop and noise coupling during high-current charge injection events. They must both be connected to the same reference source and decoupled with a shared 47 µF X5R ceramic capacitor - a layout requirement verified in the LTC2368CMS-16#PBF datasheet to maintain 94.7 dB SNR performance.
Is the LTC2368CMS-16#PBF pin-compatible with other variants like LTC2368IMS-16#PBF?
Yes, the LTC2368CMS-16#PBF shares identical pinout and footprint with all MSOP-packaged variants (e.g., LTC2368IMS-16#PBF, LTC2368HMS-16#PBF), differing only in temperature grade and screening. The commercial-grade LTC2368CMS-16#PBF (0°C to 70°C) can be substituted for industrial-grade versions in non-extended-temperature applications without PCB changes - a documented mechanical and electrical compatibility of the LTC2368CMS-16#PBF family.
LTC2368CMS-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):
- 1M
- 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:
- -
LTC2368CMS-16#PBF FAQ
1.How can I place an order for LTC2368CMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2368CMS-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 LTC2368CMS-16#PBF reliable?
The price and inventory of LTC2368CMS-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 LTC2368CMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2368CMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2368CMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2368CMS-16#PBF?
LTC2368CMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2368CMS-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 LTC2368CMS-16#PBF?
For technical support, including LTC2368CMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2368CMS-16#PBF requirements.
6.How does Aetrix verify that LTC2368CMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2368CMS-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 LTC2368CMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2368CMS-16#PBF?
All LTC2368CMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2368CMS-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 LTC2368CMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2368CMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2368CMS-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…
