My Inquiry
My Account
Analog Devices Inc. LTC2378CMS-16#PBF
- Part No.:
- LTC2378CMS-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2378CMS-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,509
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2378CMS-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 1 Msps successive approximation register (SAR) analog-to-digital converter with ±0.5 LSB INL max, 97 dB SNR at 2 kHz, and fully differential ±VREF input range (2.5 V to 5.1 V). It operates from a single 2.5 V supply, consumes 13.5 mW at full speed, and features digital gain compression (DGC) for single-supply amplifier interfacing - used in high-speed data acquisition and portable instrumentation.
For engineers reviewing the LTC2378CMS-16#PBF datasheet, LTC2378CMS-16#PBF pinout, LTC2378CMS-16#PBF application, or LTC2378CMS-16#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation, daisy-chain SPI interface compatibility (1.8 V–5 V I/O), internal conversion clock, -40°C to 85°C industrial temperature range, and MSOP-16 package with exposed pad grounding.
Technical Context
The LTC2378CMS-16#PBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, enabling zero-cycle-latency conversions and no pipeline delay. Its internal oscillator eliminates external clock dependency, while auto power-down between conversions scales dissipation with sampling rate (13.5 µW at 1 ksps).
Digital gain compression (DGC) remaps the ADC's full-scale range from ±VREF to 0.1×VREF to 0.9×VREF, allowing rail-to-rail input swing on a single 5.5 V amplifier supply without sacrificing resolution. The device supports both normal and daisy-chain SPI modes via the CHAIN pin, with SDO output in 2's complement format.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels with guaranteed no missing codes across temperature. |
| Sampling Rate | 1 Msps - enables real-time digitization of signals up to 500 kHz (Nyquist-limited) with no throughput latency. |
| SNR | 97 dB (typ, fIN = 2 kHz, VREF = 5 V) - supports >15.8 effective bits for precision measurement applications. |
| INL | ±0.5 LSB (max) - ensures monotonicity and accurate end-point linearity critical for closed-loop control systems. |
| Power Dissipation | 13.5 mW at 1 Msps - enables thermally constrained designs such as battery-powered test equipment. |
| Input Range | Fully differential ±VREF, VREF = 2.5 V to 5.1 V - provides flexible dynamic range scaling without external gain stages. |
| Digital Interface | SPI-compatible with daisy-chain mode, 1.8 V–5 V OVDD - interoperates with diverse host processors without level-shifting. |
Pinout & Package
Package: 16-lead plastic MSOP (MS package), 3 mm × 4.9 mm footprint, exposed pad (GND) on bottom surface - requires soldering to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High enables daisy-chain SPI; low configures RDL/SDI as bus-enable input - determines serial interface topology. |
| VDD (2) | Analog supply | 2.5 V ±62.5 mV supply for core ADC circuitry - must be bypassed with 10 µF ceramic capacitor to GND. |
| GND (3,6,10,16) | Ground reference | Four dedicated ground pins plus exposed pad (not shown in MSOP pinout) - minimize ground impedance and noise coupling. |
| IN+, IN– (4,5) | Differential analog inputs | Accept ±VREF input with 45 pF sampling capacitance and 40 Ω switch resistance - require low-impedance drive for settling. |
| REF (7) | Reference voltage input | 2.5 V–5.1 V external reference source - decoupled with 47 µF X5R ceramic capacitor (0805 size) for stability. |
| REF/DGC (8) | Reference/DGC control | Tied to GND enables digital gain compression (0.1–0.9×VREF range); tied to REF disables DGC for full ±VREF. |
| CNV (9) | Convert trigger | Rising-edge initiated conversion start - powers up ADC and begins acquisition phase; logic referenced to VDD. |
| BUSY (11) | Conversion status | Active-high open-drain indicator - asserts at CNV edge and deasserts when 16-bit result is ready for readout. |
| RDL/SDI (12) | Serial interface control/data | In normal mode: bus enable; in chain mode: serial data input - dual-function pin reduces interface pin count. |
| SCK (13) | Serial clock input | Up to 100 MHz clock (10 ns period) - synchronous timing for SDO data output and SDI data capture (MSB first). |
| SDO (14) | Serial data output | 2's complement 16-bit result shifted out MSB first - compatible with standard SPI master receivers. |
| OVDD (15) | I/O supply | 1.71 V–5.25 V digital interface supply - sets logic thresholds for all digital pins and enables mixed-voltage system integration. |
Key Features
| Feature | Design Value |
|---|---|
| Digital Gain Compression (DGC) | Enables single-supply amplifier operation by compressing full-scale input range to 0.1–0.9×VREF, preserving 16-bit resolution without negative rail. |
| No cycle latency | Immediate data availability after BUSY deassertion - eliminates pipeline delay for deterministic real-time control loops. |
| Auto power-down | Reduces current to 0.9 µA (typ) between conversions - cuts idle power by >99% versus continuous operation at 1 Msps. |
| Internal conversion clock | Removes need for external timing circuitry - simplifies layout and improves jitter immunity in noise-sensitive environments. |
| Guaranteed operation to 85°C | Specified over –40°C to +85°C (I-grade) - suitable for industrial automation and embedded test equipment without derating. |
| Daisy-chain SPI mode | Allows cascading multiple LTC2378CMS-16#PBF devices on one SPI bus - reduces MCU GPIO count and simplifies multi-channel synchronization. |
Applications
| Medical Imaging Signal Chain | Portable Data Logger |
|---|---|
Use Scenario: Digitizing low-noise analog outputs from ultrasound beamformer channels or MRI gradient sensors. IC Role / Device Role / Timing Role: High-fidelity 16-bit SAR ADC capturing transient waveforms at up to 1 Msps with minimal harmonic distortion. Use Value: 97 dB SNR and –122 dB THD preserve signal integrity for accurate image reconstruction and artifact reduction. |
Use Scenario: Battery-powered environmental monitoring unit recording temperature, pressure, and vibration over extended periods. IC Role / Device Role / Timing Role: Low-power, high-accuracy ADC performing periodic sampling with automatic power-down between reads. Use Value: 13.5 µW standby power (1 ksps) extends battery life while maintaining 16-bit resolution for calibration traceability. |
| Industrial Process Controller | Automated Test Equipment (ATE) |
Use Scenario: Closed-loop feedback acquisition in PLC analog I/O modules handling 4–20 mA transducer signals. IC Role / Device Role / Timing Role: Precision ADC with ±0.5 LSB INL ensuring monotonic response for PID algorithm stability. Use Value: Guaranteed no-missing-codes and bipolar zero/full-scale error < ±4 LSB enable sub-LSB control accuracy. |
Use Scenario: High-throughput functional testing of mixed-signal ICs requiring synchronized multi-channel sampling. IC Role / Device Role / Timing Role: SPI-configurable ADC supporting daisy-chain configuration for parallel channel acquisition. Use Value: 1 Msps throughput with no latency allows real-time pass/fail decisions on fast-rising test waveforms. |
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, no DGC, 32-lead LFCSP | Higher resolution/speed but requires LVDS interface and external reference; no integrated DGC function | Select when >16-bit resolution and >1 Msps throughput are mandatory, and system supports LVDS signaling. |
| ADS8860IDRCT | 16-bit, 1 Msps, 3 V supply, SPI interface, no DGC, 10-lead VSSOP, lower power (6.5 mW) | Lower power and smaller package but lacks DGC, limited VREF range (2.5 V only), and reduced temperature grade (–40°C to 85°C same) | Select for space-constrained, ultra-low-power designs where DGC and wide reference flexibility are not required. |
Compared with AD7960BCPZ-RL7 and ADS8860IDRCT, the LTC2378CMS-16#PBF uniquely combines 16-bit/1-Msps performance with digital gain compression, ±VREF flexibility (2.5–5.1 V), and robust industrial temperature support - making it optimal for cost-sensitive, single-supply, high-dynamic-range systems.
Availability
LTC2378CMS-16#PBF is available at Aetrix Electronics and suitable for medical imaging signal chains, portable data loggers, and industrial process controllers requiring stable component supply, long-term lifecycle support, and guaranteed industrial-grade performance.
Supply support for LTC2378CMS-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 LTC2378-16 product line was developed by Linear Technology (acquired by ADI in 2017) to deliver high-speed, low-power, precision SAR ADCs for demanding data acquisition systems where resolution, noise, and power efficiency are critical.
FAQ
What is the operating temperature range for the LTC2378CMS-16#PBF?
The LTC2378CMS-16#PBF is rated for –40°C to +85°C (I-grade), with full electrical specifications guaranteed across this range. This makes it suitable for industrial environments where ambient temperatures exceed commercial limits. The device also supports operation up to 125°C in H-grade variants (e.g., LTC2378HMS-16#PBF), but the LTC2378CMS-16#PBF itself is specified only to 85°C.
Does the LTC2378CMS-16#PBF require an external clock source?
No, the LTC2378CMS-16#PBF includes an internal oscillator that sets conversion timing, eliminating the need for an external clock. This simplifies system design and improves jitter immunity. The SCK pin is used solely for serial data transfer timing and can operate up to 100 MHz - independent of the internal conversion clock.
How does Digital Gain Compression (DGC) work in the LTC2378CMS-16#PBF?
In the LTC2378CMS-16#PBF, DGC is enabled by grounding the REF/DGC pin. This remaps the ADC's full-scale input range from ±VREF to 0.1×VREF to 0.9×VREF (e.g., 0.5 V to 4.5 V for VREF = 5 V), allowing the driving amplifier to operate from a single positive supply. Resolution remains fully 16-bit - only the analog input span is digitally scaled.
What package type does the LTC2378CMS-16#PBF use, and is thermal pad connection required?
The LTC2378CMS-16#PBF uses a 16-lead plastic MSOP package (3 mm × 4.9 mm) without an exposed thermal pad. Unlike the DFN variant (e.g., LTC2378CDE-16#PBF), the MSOP version has no Pin 17 ground pad - all grounding is handled through Pins 3, 6, 10, and 16. No thermal pad soldering is required or possible for this variant.
Can the LTC2378CMS-16#PBF interface directly with a 1.8 V microcontroller?
Yes, the LTC2378CMS-16#PBF supports 1.8 V I/O logic via its OVDD pin. When OVDD = 1.8 V, all digital inputs (CNV, SCK, CHAIN, RDL/SDI) recognize 0.2×OVDD (0.36 V) as logic low and 0.8×OVDD (1.44 V) as logic high, and SDO outputs are compatible with 1.8 V receivers - enabling direct connection without level shifters.
LTC2378CMS-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:
- -
LTC2378CMS-16#PBF FAQ
1.How can I place an order for LTC2378CMS-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2378CMS-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 LTC2378CMS-16#PBF reliable?
The price and inventory of LTC2378CMS-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 LTC2378CMS-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2378CMS-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2378CMS-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2378CMS-16#PBF?
LTC2378CMS-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2378CMS-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 LTC2378CMS-16#PBF?
For technical support, including LTC2378CMS-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2378CMS-16#PBF requirements.
6.How does Aetrix verify that LTC2378CMS-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2378CMS-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 LTC2378CMS-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2378CMS-16#PBF?
All LTC2378CMS-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2378CMS-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 LTC2378CMS-16#PBF part is unused and in its original packaging.
Return procedure for LTC2378CMS-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2378CMS-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…
