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Analog Devices Inc. LTC2383CMS-16#PBF
- Part No.:
- LTC2383CMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2383CMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:314
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Product details
Overview
LTC2383CMS-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 1 Msps successive approximation register (SAR) analog-to-digital converter with fully differential ±2.5 V input range, 92 dB SNR at 20 kHz, ±2 LSB INL max, and 13 mW power consumption at full speed. It operates from a single 2.5 V supply and supports 1.8 V–5 V I/O logic levels, making it suitable for high-speed data acquisition in compact instrumentation and industrial control systems.
For engineers reviewing the LTC2383CMS-16#PBF datasheet, LTC2383CMS-16#PBF pinout, LTC2383CMS-16#PBF application, or LTC2383CMS-16#PBF equivalent, key selection considerations include guaranteed 16-bit no-missing-codes operation, daisy-chain SPI interface compatibility, internal conversion clock, auto power-down scaling with sampling rate, and MSOP-16 package suitability for space-constrained PCB layouts.
Technical Context
The LTC2383CMS-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, sampling the IN+/IN– inputs during acquisition and executing binary-search conversion without pipeline latency. Its internal oscillator eliminates external clock dependency, and conversion timing is fixed at 610–730 ns with 1 µs minimum inter-conversion interval.
It features dual supply domains: VDD (2.375–2.625 V) powers core logic and ADC, while OVDD (1.71–5.25 V) independently sets I/O voltage level-enabling direct interfacing to 1.8 V, 2.5 V, 3.3 V, or 5 V host controllers. The REF pins accept an external 2.4–2.6 V reference, and the device draws up to 910 µA reference current at 1 Msps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit-guarantees monotonic transfer function and no missing codes across full temperature range. |
| Sampling Rate | 1 Msps-enables real-time capture of signals up to 500 kHz Nyquist bandwidth with no cycle latency. |
| SNR | 92 dB (typ) at fIN = 20 kHz-supports >15 ENOB for precision measurement applications. |
| INL | ±2 LSB (max)-ensures accurate end-point linearity critical for closed-loop control and calibration systems. |
| Power @ 1 Msps | 13 mW-achieved with 2.5 V VDD and 2.5 V OVDD, enabling battery-operated or thermally constrained designs. |
| Differential Input Range | ±2.5 V-fully utilizes 2.5 V reference to deliver 76 µV LSB size and wide dynamic signal coverage. |
| Operating Temp | 0°C to 70°C-validated performance over commercial temperature range per LTC2383CMS-16#PBF ordering grade. |
Pinout & Package
Package: 16-lead plastic MSOP (4 mm × 5 mm), exposed pad not present (DFN variant has exposed GND pad; MSOP does not). Pin 1 is CHAIN, pin 2 is VDD, pins 3/6/10/16 are GND, pins 4/5 are IN+/IN–, pins 7/8 are REF, pin 9 is CNV, pin 11 is BUSY, pin 12 is RDL/SDI, pin 13 is SCK, pin 14 is SDO, pin 15 is OVDD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode select input | High enables daisy-chain SPI mode (RDL/SDI becomes serial data input); low enables normal bus-enable mode. |
| VDD (2) | Digital core supply | 2.375–2.625 V supply for ADC logic and CDAC; requires 10 µF ceramic bypass to GND. |
| GND (3,6,10,16) | Analog/digital ground | Four dedicated ground connections minimize noise coupling between analog and digital sections. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±2.5 V differential swing; input capacitance is 45 pF in sample mode, requiring low-impedance drive. |
| REF (7,8) | Reference voltage input | 2.4–2.6 V external reference; draws up to 910 µA at 1 Msps; requires 47 µF X5R ceramic decoupling. |
| CNV (9) | Convert trigger input | Rising edge initiates conversion; device auto-powers-down when held high post-conversion. |
| BUSY (11) | Conversion status indicator | Active-high open-drain output signaling conversion progress; used for timing synchronization. |
| RDL/SDI (12) | Serial interface control/data | In Normal Mode: bus enable; in Chain Mode: serial data input for daisy-chained configurations. |
| SCK (13) | Serial clock input | Accepts up to 100 MHz clock (10 ns period); controls data shift timing for SDO output or SDI input. |
| SDO (14) | Serial data output | 2's complement 16-bit result shifted MSB-first on SCK rising edges; tri-state controlled by RDL/SDI. |
| OVDD (15) | I/O interface supply | 1.71–5.25 V supply setting logic level for SDO, SCK, RDL/SDI, BUSY, and CNV; independent of VDD. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay / zero cycle latency | Enables deterministic real-time sampling for time-critical control loops and burst acquisition without output buffering. |
| Auto power-down between conversions | Reduces average power proportionally to sampling rate-drops to 13 µW at 1 ksps, extending battery life. |
| SPI-compatible serial interface with daisy-chain mode | Supports multi-ADC synchronization via single SCK/SCK chain; eliminates need for separate CS lines per device. |
| Guaranteed operation to 125°C (H-grade variants) | While LTC2383CMS-16#PBF is rated 0°C–70°C, same-pinout H-grade (LTC2383HMS-16#PBF) enables drop-in thermal upgrade. |
| Internal conversion clock | Removes requirement for external timing circuitry-simplifies layout and reduces BOM count in space-limited designs. |
Applications
| Medical Imaging Signal Digitization | Industrial Process Control Loop Sampling |
|---|---|
Use Scenario: Digitizing analog outputs from ultrasound beamformer channels or MRI gradient amplifiers requiring high dynamic range and low distortion. IC Role / Device Role / Timing Role: Primary 16-bit SAR ADC capturing synchronized channel data at ≥500 ksps with <1 µs latency for real-time image reconstruction. Use Value: 92 dB SNR and ±2 LSB INL ensure faithful reproduction of weak echo signals amid strong interference, preserving diagnostic fidelity. |
Use Scenario: High-precision monitoring of pressure, temperature, or flow sensors in PLC-based automation systems with tight loop timing. IC Role / Device Role / Timing Role: Front-end ADC in distributed I/O modules, converting sensor outputs at 1 Msps with deterministic CNV-triggered sampling. Use Value: No missing codes and guaranteed monotonicity prevent control instability; auto power-down reduces thermal load in sealed enclosures. |
| Portable Test Equipment Data Capture | Automated Test Equipment (ATE) Channel Interface |
Use Scenario: Handheld oscilloscopes or spectrum analyzers needing low-power, high-SNR digitization in battery-powered form factors. IC Role / Device Role / Timing Role: Core ADC in mixed-signal front-end, interfacing to low-noise driver (e.g., LT6350) and FPGA controller via SPI. Use Value: 13 mW at 1 Msps and 1.8 V–5 V I/O support enable direct integration with 3.3 V or 1.8 V SoCs without level-shifting. |
Use Scenario: Multi-channel ATE systems requiring synchronized sampling across dozens of DUTs with minimal board area per channel. IC Role / Device Role / Timing Role: Per-channel ADC in modular ATE slot cards, leveraging daisy-chain SPI to reduce FPGA pin count and routing complexity. Use Value: Daisy-chain capability allows 16+ devices on one SPI bus; MSOP-16 footprint enables dense channel packing on high-layer PCBs. |
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, ±2.5 V input, but requires external reference and separate VIO supply; higher power (34 mW). | Targeted at higher-resolution metrology vs. balanced speed/power; lacks integrated daisy-chain mode. | Select when 18-bit resolution and 5 Msps throughput outweigh added complexity and power cost. |
| LTC2378IMS-18#PBF | 18-bit, 1 Msps, same MSOP-16 package, 2.5 V supply, ±2.5 V input, 95.5 dB SNR-but consumes 24 mW and lacks daisy-chain mode. | Optimized for ultra-low noise rather than interface flexibility; no RDL/SDI dual-function pin. | Choose for applications demanding maximum SNR (>95 dB) where SPI daisy-chaining is unnecessary. |
Compared with AD7960BCPZ-RL7 and LTC2378IMS-18#PBF, the LTC2383CMS-16#PBF delivers optimal trade-off of 16-bit accuracy, 1 Msps speed, ultra-low 13 mW power, and built-in daisy-chain SPI-making it uniquely suited for scalable, power-sensitive, multi-channel acquisition systems.
Availability
LTC2383CMS-16#PBF is available at Aetrix Electronics and suitable for medical imaging signal digitization, industrial process control loop sampling, and portable test equipment data capture requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production lots.
Supply support for LTC2383CMS-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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC2383-16 belongs to Linear's high-speed precision SAR ADC family, designed specifically for applications demanding both high throughput and high DC/AC accuracy-such as data acquisition systems, instrumentation, and automated test equipment.
FAQ
What is the operating temperature range for the LTC2383CMS-16#PBF?
The LTC2383CMS-16#PBF is specified for operation from 0°C to 70°C-the commercial temperature grade indicated by the "C" prefix in the part number. This range is validated per the Absolute Maximum Ratings and Electrical Characteristics tables in the official datasheet, with all key parameters (e.g., INL, SNR, power) guaranteed across this span.
Does the LTC2383CMS-16#PBF require an external clock source?
No, the LTC2383CMS-16#PBF includes an internal oscillator that sets the conversion time, eliminating the need for an external clock. The only required timing signal is the CNV pulse to initiate each conversion; SCK is used solely for serial data readout and does not govern conversion timing.
Can the LTC2383CMS-16#PBF interface directly with a 1.8 V microcontroller?
Yes-the LTC2383CMS-16#PBF supports 1.8 V to 5 V logic levels on its digital interface (SCK, RDL/SDI, SDO, BUSY, CNV) via the OVDD pin. By tying OVDD to 1.8 V and using appropriate pull-up/down biasing, full SPI communication with 1.8 V MCUs is achieved without level shifters.
What reference voltage is recommended for the LTC2383CMS-16#PBF?
The LTC2383CMS-16#PBF requires a low-noise, low-drift external reference between 2.4 V and 2.6 V. The LTC6652-2.5 (0.05% initial accuracy, 5 ppm/°C drift) is explicitly recommended in the datasheet and was used for all published performance curves, including the 92 dB SNR specification.
Is the LTC2383CMS-16#PBF pin-compatible with other members of the LTC238X-16 family?
Yes-the LTC2383CMS-16#PBF shares identical MSOP-16 pinout and functionality with the LTC2382-16 and LTC2381-16, differing only in maximum sampling rate (1 Msps vs. 500 ksps vs. 250 ksps) and corresponding power consumption. This allows hardware reuse across speed grades with only firmware timing adjustments.
LTC2383CMS-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:
- 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:
- -
LTC2383CMS-16#PBF FAQ
1.How can I place an order for LTC2383CMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2383CMS-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 LTC2383CMS-16#PBF reliable?
The price and inventory of LTC2383CMS-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 LTC2383CMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2383CMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2383CMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2383CMS-16#PBF?
LTC2383CMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2383CMS-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 LTC2383CMS-16#PBF?
For technical support, including LTC2383CMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2383CMS-16#PBF requirements.
6.How does Aetrix verify that LTC2383CMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2383CMS-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 LTC2383CMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2383CMS-16#PBF?
All LTC2383CMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2383CMS-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 LTC2383CMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2383CMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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