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Analog Devices Inc. LTC2368HMS-16#PBF
- Part No.:
- LTC2368HMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2368HMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:164
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Product details
Overview
LTC2368HMS-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit pseudo-differential unipolar successive approximation register (SAR) ADC optimized for high-speed, low-noise data acquisition. It operates from a single 2.5V supply, supports 0V to VREF input range (VREF = 2.5V–5.1V), delivers 1Msps throughput with no pipeline delay, achieves ±0.75LSB INL max and 94.7dB SNR (typ), and is rated for operation from –40°C to 125°C in the MSOP package.
For engineers reviewing the LTC2368HMS-16#PBF datasheet, LTC2368HMS-16#PBF pinout, LTC2368HMS-16#PBF application, or LTC2368HMS-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes performance, H-grade temperature capability, SPI-compatible daisy-chain interface, internal conversion clock, and ultra-low power dissipation (13.5mW at 1Msps).
Technical Context
The LTC2368HMS-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, sampling pseudo-differential inputs (IN+, IN–) during acquisition and executing binary-search conversion without latency. Its internal oscillator eliminates external clock dependency, and auto power-down between conversions scales current draw with sampling rate.
It features dual supply domains: 2.5V analog core (VDD) and flexible 1.71V–5.25V digital I/O (OVDD), enabling interoperability with 1.8V/2.5V/3.3V/5V host logic. The CHAIN pin enables daisy-chain mode for multi-ADC systems, while BUSY and CNV provide precise timing control for synchronous sampling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-level digitization with no missing codes across temperature. |
| Sampling Rate | 1 Msps - enables real-time capture of signals up to 500 kHz Nyquist bandwidth. |
| SNR | 94.7 dB (typ, fIN = 2 kHz, VREF = 5 V) - supports >15.7 ENOB for precision measurement applications. |
| INL | ±0.75 LSB (max) - ensures monotonicity and accurate end-point linearity in closed-loop control. |
| Power Dissipation | 13.5 mW at 1 Msps - enables high-throughput acquisition in thermally constrained or battery-powered systems. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial motor drives, and downhole instrumentation. |
| Reference Range | 2.5 V to 5.1 V - allows system-level trade-offs between dynamic range and noise floor via external reference selection. |
Pinout & Package
Package: 16-lead plastic MSOP (5.0 mm × 4.4 mm), exposed pad not present (DFN variant has exposed GND pad; MSOP does not). Thermal resistance θJA = 110°C/W.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High = daisy-chain mode (RDL/SDI becomes serial data input); low = normal mode (RDL/SDI enables SDO bus). |
| VDD (2) | Analog supply | 2.375 V–2.625 V; powers SAR core and reference buffer; requires 10 µF ceramic bypass to GND. |
| GND (3,6,10,16) | Analog/digital ground | Four dedicated GND pins minimize ground bounce and improve PSRR in mixed-signal layouts. |
| IN+ (4) | Pseudo-differential input (+) | Accepts 0 V to VREF with respect to IN–; 45 pF input capacitance during acquisition. |
| IN– (5) | Pseudo-differential input (–) | Common-mode sense node; ±100 mV range w.r.t. GND; must connect to ground plane or remote sense point. |
| REF (7,8) | Reference input | Dual-pin connection for low-impedance decoupling; accepts 2.5 V–5.1 V; draws 0.5–0.7 mA at 1 Msps. |
| CNV (9) | Convert trigger | Rising-edge initiated conversion; also powers up device from auto power-down state. |
| BUSY (11) | Status indicator | Active-high signal indicates conversion in progress; used for timing synchronization or interrupt generation. |
| RDL/SDI (12) | Configurable I/O | In normal mode: bus enable; in chain mode: serial data input for cascaded ADC configurations. |
| SCK (13) | Serial clock | Supports up to 100 MHz (10 ns period); controls data shift-out timing on SDO and shift-in on SDI/RDL. |
| SDO (14) | Serial data output | MSB-first straight-binary output; tri-state controlled by RDL/SDI in normal mode; driven at OVDD voltage level. |
| OVDD (15) | Digital I/O supply | 1.71 V–5.25 V; sets logic thresholds for all digital pins; bypass with 0.1 µF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency | Enables deterministic real-time control loops without FIFO buffering or pipeline compensation. |
| Internal conversion clock | Eliminates need for external timing circuitry, simplifying PCB layout and reducing BOM count. |
| 1.8 V–5 V I/O compatibility | Interoperates directly with FPGA, MCU, and ASIC interfaces across multiple voltage domains without level shifters. |
| Auto power-down between conversions | Reduces average current to 13.5 µA at 1 kSPS, extending battery life in portable instrumentation. |
| H-grade temperature rating | Validated performance over –40°C to +125°C ensures reliability in harsh industrial and automotive environments. |
Applications
| Medical Imaging | Industrial Process Control |
|---|---|
Use Scenario: Digitizing ultrasound echo signals in portable handheld scanners requiring high dynamic range and low power. IC Role / Device Role / Timing Role: Primary ADC capturing baseband RF signals at 1 Msps with 94.7 dB SNR to preserve tissue contrast resolution. Use Value: Enables 16-bit fidelity without oversampling or external decimation, reducing FPGA resource usage and system latency. | Use Scenario: Monitoring motor phase currents and voltages in servo drives operating in ambient temperatures up to 125°C. IC Role / Device Role / Timing Role: High-accuracy current sensing ADC interfacing with isolated amplifiers and real-time PWM controllers. Use Value: ±0.75 LSB INL ensures precise torque regulation; H-grade rating avoids derating or thermal margining in enclosed enclosures. |
| High-Speed Data Acquisition | ATE |
Use Scenario: Modular DAQ cards for semiconductor test equipment requiring synchronized multi-channel sampling. IC Role / Device Role / Timing Role: Channel ADC in daisy-chained configuration using CHAIN and BUSY for deterministic inter-channel alignment. Use Value: Daisy-chain mode eliminates routing complexity for 8+ channel boards while maintaining 1 Msps per channel. | Use Scenario: Parametric testing of analog ICs where DC accuracy and AC performance must be validated simultaneously. IC Role / Device Role / Timing Role: Reference-grade digitizer for measuring THD (–118 dB typ) and SFDR (119 dB typ) of DUT outputs. Use Value: Guaranteed 16-bit no-missing-codes and low aperture jitter (4 ps) ensure metrology-grade test repeatability. |
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 |
|---|---|---|---|
| ADS8860IRGET | 16-bit, 1 MSPS, single-ended input only; 92.5 dB SNR (typ); 1.8 V supply; no daisy-chain mode. | Requires external signal conditioning for pseudo-differential inputs; lower SNR limits ENOB in noise-sensitive applications. | Select when board space is constrained (QFN-24, 4 mm × 4 mm) and differential drive is unavailable. |
| AD7960BCPZ-RL7 | 18-bit, 5 MSPS, pseudo-differential; 99.5 dB SNR (typ); requires external reference and clock; higher power (43 mW). | Delivers higher resolution and speed but demands more complex timing and power delivery design. | Select when >16-bit resolution and >1 MSPS are mandatory, and system can accommodate increased layout and thermal overhead. |
Compared with ADS8860IRGET and AD7960BCPZ-RL7, the LTC2368HMS-16#PBF uniquely balances H-grade temperature operation, integrated conversion clock, daisy-chain capability, and 94.7 dB SNR at 13.5 mW-making it optimal for ruggedized, multi-channel, medium-speed precision systems where simplicity and reliability are prioritized over raw bit count or speed.
Availability
LTC2368HMS-16#PBF is available at Aetrix Electronics and suitable for medical imaging, industrial process control, and high-speed data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2368HMS-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 LTC2368HMS-16#PBF belongs to ADI's precision SAR ADC product line, engineered for applications demanding high DC accuracy, excellent AC performance, and robust operation in thermally demanding environments.
FAQ
What is the maximum sampling rate of the LTC2368HMS-16#PBF?
The LTC2368HMS-16#PBF supports a maximum sampling rate of 1 Msps, with guaranteed timing parameters (tCYC = 1 µs, tCONV = 527 ns max) specified over its full –40°C to +125°C operating range. This rate is maintained without pipeline delay or cycle latency, enabling true real-time acquisition for control and measurement systems.
Does the LTC2368HMS-16#PBF require an external clock source?
No, the LTC2368HMS-16#PBF integrates an internal oscillator that sets conversion timing, eliminating the need for an external clock. The SCK pin is used solely for serial data transfer timing and supports up to 100 MHz; it does not control the ADC core conversion clock.
What is the purpose of the CHAIN pin on the LTC2368HMS-16#PBF?
The CHAIN pin on the LTC2368HMS-16#PBF configures the device for daisy-chain operation when driven high, allowing multiple LTC2368HMS-16#PBF units to share a single SCK and SDO line. In this mode, RDL/SDI functions as SDI, enabling compact multi-channel designs without additional GPIO or bus expanders.
Can the LTC2368HMS-16#PBF operate with a 3.3V digital interface?
Yes, the LTC2368HMS-16#PBF supports 1.71 V to 5.25 V OVDD, making it fully compatible with 3.3 V logic systems. All digital inputs (CNV, BUSY, SCK, RDL/SDI) and outputs (SDO) are referenced to OVDD, ensuring reliable communication without level-shifting circuitry.
How does the auto power-down feature reduce power consumption in the LTC2368HMS-16#PBF?
The LTC2368HMS-16#PBF automatically enters low-power shutdown between conversions, drawing only 0.9 µA (typ) in power-down mode. At 1 kSPS, this reduces total power from 13.5 mW to 13.5 µW-enabling energy-efficient operation in battery-powered instrumentation without sacrificing 16-bit accuracy or 1 Msps burst capability.
LTC2368HMS-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:
- -40°C ~ 125°C
- Supplier Device Package:
- 16-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2368HMS-16#PBF FAQ
1.How can I place an order for LTC2368HMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2368HMS-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 LTC2368HMS-16#PBF reliable?
The price and inventory of LTC2368HMS-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 LTC2368HMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2368HMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2368HMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2368HMS-16#PBF?
LTC2368HMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2368HMS-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 LTC2368HMS-16#PBF?
For technical support, including LTC2368HMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2368HMS-16#PBF requirements.
6.How does Aetrix verify that LTC2368HMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2368HMS-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 LTC2368HMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2368HMS-16#PBF?
All LTC2368HMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2368HMS-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 LTC2368HMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2368HMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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