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Analog Devices Inc. LTC2368CMS-16#TRPBF
- Part No.:
- LTC2368CMS-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2368CMS-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,643
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Product details
Overview
LTC2368CMS-16#TRPBF 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#TRPBF datasheet, LTC2368CMS-16#TRPBF pinout, LTC2368CMS-16#TRPBF application, or LTC2368CMS-16#TRPBF equivalent, key selection criteria include its 1 Msps throughput with zero cycle latency, 1.8 V to 5 V I/O voltage compatibility, internal conversion clock, and MSOP-16 package with operation up to +70°C.
Technical Context
The LTC2368CMS-16#TRPBF implements a charge redistribution capacitor DAC (CDAC) architecture with pseudo-differential sampling, where IN+ accepts 0 V to VREF inputs while IN– serves as a ground-sense node with ±100 mV range. Conversion is initiated by a rising edge on CNV, and the internal oscillator eliminates external clock dependencies.
Its SPI-compatible serial interface supports daisy-chain mode via CHAIN and RDL/SDI pins, operates across OVDD = 1.71 V to 5.25 V, and outputs straight-binary 16-bit data on SDO synchronized to SCK rising edges - with no pipeline delay and full 1 Msps throughput sustained across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels for high dynamic range measurement. |
| Sampling Rate | 1 Msps - enables real-time capture of signals up to 500 kHz Nyquist bandwidth. |
| INL (Max) | ±0.75 LSB - ensures monotonicity and <0.001% full-scale linearity error in precision sensor interfaces. |
| SNR (Typ) | 94.7 dB at fIN = 2 kHz - corresponds to ~15.8 effective bits (ENOB) with 5 V reference. |
| Power (1 Msps) | 13.5 mW - achieved with 2.5 V VDD and 2.5 V OVDD, supporting battery-operated designs. |
| Reference Range | 2.5 V to 5.1 V - allows flexible scaling of input range without external gain stages. |
| Operating Temp | 0°C to +70°C - validated for commercial-grade embedded instrumentation and ATE. |
Pinout & Package
Package: 16-lead plastic MSOP (4.0 mm × 3.0 mm), exposed pad not present (DFN variant has exposed pad; MSOP does not). Pin 1 is CHAIN, pin 2 is VDD, and pin 17 is absent - consistent with standard MSOP-16 mechanical outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High enables daisy-chain SPI mode; low enables bus-enable (RDL) function on same pin. |
| VDD (2) | Analog supply | 2.375 V to 2.625 V supply powering core ADC and CDAC - requires 10 µF ceramic bypass. |
| GND (3,6,10,16) | Ground reference | Four dedicated GND pins minimize ground bounce and improve PSRR in high-speed sampling. |
| IN+ (4) | Analog input (+) | Pseudo-differential input with 0 V to VREF range; sees 45 pF capacitance during acquisition. |
| IN– (5) | Analog ground sense | Accepts ±100 mV relative to GND; must connect to system ground plane or remote sense point. |
| REF (7,8) | Reference input | Dual-pin connection for 2.5 V–5.1 V external reference; requires 47 µF X5R ceramic decoupling. |
| CNV (9) | Convert trigger | Rising-edge–initiated conversion; powers up ADC and starts SAR sequence with no setup delay. |
| BUSY (11) | Status indicator | Active-high open-drain signal indicating conversion in progress; synchronizes host read timing. |
| RDL/SDI (12) | Configurable I/O | In normal mode: bus enable; in chain mode: serial data input for multi-ADC daisy chains. |
| SCK (13) | Serial clock | Accepts up to 100 MHz SCK (10 ns period); controls data shift-out timing on SDO. |
| SDO (14) | Serial output | MSB-first straight-binary output; valid within 9.5 ns of SCK↑ (CL = 20 pF). |
| OVDD (15) | I/O supply | 1.71 V to 5.25 V logic interface supply - enables direct interfacing with 1.8 V, 2.5 V, 3.3 V, or 5 V microcontrollers. |
Key Features
| Feature | Design Value |
|---|---|
| No missing codes at 16 bits | Guaranteed monotonic transfer function across full temperature range - essential for closed-loop control integrity. |
| Zero cycle latency | Immediate data availability after BUSY goes low - eliminates FIFO buffering and simplifies real-time firmware design. |
| Auto power-down between conversions | Reduces idle current to 0.9 mA (VDD + OVDD) and scales dynamically with sample rate - cuts power at low duty cycles. |
| Internal conversion clock | Removes need for external timing components or master clock synchronization - lowers BOM count and layout complexity. |
| 1.8 V to 5 V I/O compatibility | Single device interoperates with legacy 5 V logic and modern ultra-low-voltage MCUs without level shifters. |
Applications
| Medical Imaging Signal Chain | Industrial Process Monitoring |
|---|---|
Use Scenario: Digitizing analog outputs from ultrasound transducer front-ends or MRI gradient coil sensors requiring high SNR and low THD. IC Role / Device Role / Timing Role: Primary high-speed digitizer capturing baseband signals at ≥1 Msps with minimal added noise or harmonic distortion. Use Value: 94.7 dB SNR and –118 dB THD preserve weak signal fidelity; pseudo-differential input rejects common-mode interference from noisy motor drives. | Use Scenario: Real-time monitoring of pressure, temperature, or flow sensors in PLC-based factory automation systems. IC Role / Device Role / Timing Role: High-accuracy ADC interfacing with isolated analog front-ends and microcontroller-based control units. Use Value: ±0.75 LSB INL ensures precise calibration traceability; 1 Msps throughput supports fast loop updates without oversampling penalties. |
| Portable Test Equipment | Automated Test Equipment (ATE) |
Use Scenario: Handheld oscilloscopes or multimeters needing compact, low-power, high-resolution digitization. IC Role / Device Role / Timing Role: Core ADC in battery-powered instruments where size, thermal profile, and ENOB are critical. Use Value: 13.5 mW at 1 Msps extends battery life; MSOP-16 footprint fits dense PCB layouts; internal clock eases timing design. | Use Scenario: Channelized digitizer modules in rack-mounted ATE platforms performing parallel parametric testing. IC Role / Device Role / Timing Role: One of multiple synchronized ADCs in daisy-chain configuration for scalable channel count. Use Value: CHAIN pin and RDL/SDI dual-function support seamless multi-device SPI cascading - reduces GPIO usage and routing congestion. |
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, requires external reference and separate VIO supply; higher power (43 mW at 5 Msps); no integrated daisy-chain mode. | Better resolution/speed for lab-grade equipment; less suitable for space-constrained or ultra-low-power designs. | Select when >16-bit ENOB and >1 Msps are mandatory; accept added layout complexity and power budget impact. |
| ADS8860IDRCT | 16-bit, 1 Msps, SPI interface, but only single-ended input; lower SNR (92.5 dB typ); 1.8 V–3.6 V I/O only; no CHAIN/daisy-chain capability. | Cost-optimized for consumer-grade data loggers; lacks pseudo-differential rejection and wide I/O voltage flexibility. | Choose for simpler, lower-cost systems where common-mode noise is negligible and host logic is strictly 1.8 V/3.3 V. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2368CMS-16#TRPBF uniquely balances 16-bit accuracy, 1 Msps throughput, pseudo-differential input, daisy-chain support, and 1.8 V–5 V I/O in a single MSOP-16 package - making it optimal for industrial and portable instrumentation where integration density and noise immunity are prioritized over raw speed or bit depth.
Availability
LTC2368CMS-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging signal chains, industrial process monitoring, and portable test equipment requiring stable component supply, long-term production continuity, and RoHS-compliant packaging.
Supply support for LTC2368CMS-16#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. (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 family was designed by Linear Technology (acquired by ADI in 2017) specifically for high-speed, low-power, high-SNR data acquisition in space- and power-constrained systems - emphasizing ease of use via internal clocking and flexible I/O voltage operation.
FAQ
What is the maximum sampling rate supported by the LTC2368CMS-16#TRPBF?
The LTC2368CMS-16#TRPBF supports a guaranteed maximum sampling rate of 1 Msps across its full 0°C to +70°C operating temperature range. This is enabled by its internal oscillator and optimized SAR architecture - delivering consistent 1 µs conversion cycle time (tCYC) with no pipeline delay or latency between samples.
Does the LTC2368CMS-16#TRPBF require an external clock source?
No, the LTC2368CMS-16#TRPBF does not require an external clock source. It integrates an internal conversion clock that sets tCONV = 460–527 ns, eliminating timing-critical external clock distribution and simplifying system-level synchronization - though an external SCK is still required for SPI data transfer.
Can the LTC2368CMS-16#TRPBF operate with a 3.3 V I/O interface?
Yes, the LTC2368CMS-16#TRPBF supports 3.3 V I/O operation via its OVDD pin, which accepts 1.71 V to 5.25 V. When OVDD = 3.3 V, VIH = 2.64 V (min) and VIL = 0.66 V (max), ensuring robust compatibility with standard 3.3 V microcontrollers and FPGAs without level-shifting circuitry.
What reference voltage range is compatible with the LTC2368CMS-16#TRPBF?
The LTC2368CMS-16#TRPBF accepts an external reference voltage (applied to REF pins 7 and 8) in the range of 2.5 V to 5.1 V. At VREF = 5 V, LSB size is 76 µV; at VREF = 2.5 V, LSB size is 38 µV - allowing scalable input range mapping without gain-stage redesign.
Is the LTC2368CMS-16#TRPBF pin-compatible with other variants in the LTC2368 family?
Yes, the LTC2368CMS-16#TRPBF shares identical pinout and footprint with all MSOP-16 variants (e.g., LTC2368IMS-16#TRPBF, LTC2368HMS-16#TRPBF), differing only in temperature grade and part marking. This allows drop-in replacement across commercial, industrial, and high-temp versions without PCB redesign.
LTC2368CMS-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- 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#TRPBF FAQ
1.How can I place an order for LTC2368CMS-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2368CMS-16#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 LTC2368CMS-16#TRPBF reliable?
The price and inventory of LTC2368CMS-16#TRPBF 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#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2368CMS-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2368CMS-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2368CMS-16#TRPBF?
LTC2368CMS-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2368CMS-16#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 LTC2368CMS-16#TRPBF?
For technical support, including LTC2368CMS-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2368CMS-16#TRPBF requirements.
6.How does Aetrix verify that LTC2368CMS-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2368CMS-16#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 LTC2368CMS-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2368CMS-16#TRPBF?
All LTC2368CMS-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2368CMS-16#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 LTC2368CMS-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2368CMS-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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