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Analog Devices Inc. LTC2377HMS-16#TRPBF
- Part No.:
- LTC2377HMS-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2377HMS-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,066
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Product details
Overview
LTC2377HMS-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 500ksps successive approximation register (SAR) analog-to-digital converter with ±0.5LSB INL max, 97dB SNR at 2kHz, and fully differential ±VREF input range (2.5V–5.1V reference). It operates from a single 2.5V supply, consumes 6.8mW at full speed, and features digital gain compression (DGC) to enable single-supply amplifier driving. It is used in high-speed data acquisition systems requiring precision, low power, and extended temperature operation up to 125°C.
For engineers reviewing the LTC2377HMS-16#TRPBF datasheet, LTC2377HMS-16#TRPBF pinout, LTC2377HMS-16#TRPBF application, or LTC2377HMS-16#TRPBF equivalent, key selection considerations include guaranteed 16-bit no-missing-codes performance, daisy-chain SPI interface compatibility across 1.8V–5V logic, internal conversion clock, and H-grade industrial temperature support (–40°C to +125°C).
Technical Context
The LTC2377HMS-16#TRPBF implements a charge redistribution SAR architecture with a 16-bit CDAC and differential comparator, achieving zero-cycle latency and no pipeline delay. Its conversion timing is governed by an internal oscillator, eliminating external clock dependency for timing-critical systems.
Digital gain compression (DGC) is controlled via the REF/DGC pin: grounded to map full-scale input from 0.1·VREF to 0.9·VREF (e.g., 0.5V–4.5V for VREF = 5V), enabling rail-to-rail amplifier operation from a single 5.5V supply while preserving full 16-bit resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels with guaranteed no missing codes across full temperature range. |
| Sampling Rate | 500ksps - supports real-time digitization of signals up to ~240kHz Nyquist bandwidth with minimal latency. |
| SNR | 97dB (typ, fIN = 2kHz, VREF = 5V) - enables >15.8 effective number of bits (ENOB) for high-fidelity signal capture. |
| INL | ±0.5LSB (max, –40°C to +125°C) - ensures monotonicity and accurate end-point linearity in closed-loop control or calibration systems. |
| Power Consumption | 6.8mW at 500ksps, 6.8µW at 500sps - scales linearly with sample rate, supporting ultra-low-power sleep modes in battery-operated instrumentation. |
| Reference Range | 2.5V to 5.1V - allows flexible system-level scaling: higher VREF improves dynamic range; lower VREF reduces driver supply requirements. |
| Digital Interface | SPI-compatible, daisy-chain capable, 1.8V–5V I/O - interoperates directly with FPGA, MCU, or DSP I/O banks without level-shifting circuitry. |
Pinout & Package
Package: 16-lead plastic MSOP (5.0mm × 4.4mm × 1.1mm), exposed pad not present (unlike DFN variant); rated for –40°C to +125°C operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CHAIN) | Chain mode selector | High enables daisy-chain SPI mode (RDL/SDI becomes serial input); low enables normal bus-enable mode. |
| 2 (VDD) | Analog core supply | 2.5V ±62.5mV supply; bypassed with 10µF ceramic capacitor to GND for noise-sensitive SAR operation. |
| 4,5 (IN+, IN–) | Differential analog inputs | Accept ±VREF fully differential input (e.g., ±5V); input capacitance 45pF in sample mode; require low-impedance drive for settling. |
| 7 (REF) | Reference voltage input | 2.5V–5.1V external reference; decoupled with 47µF X5R ceramic capacitor; defines full-scale range and LSB size (152µV @ 5V). |
| 8 (REF/DGC) | Digital gain compression control | Tied to GND to enable DGC (0.1–0.9·VREF input range); tied to REF to disable DGC (full ±VREF range). |
| 9 (CNV) | Convert trigger | Rising-edge–initiated conversion; powers up ADC and starts acquisition; compatible with microcontroller GPIO or timer outputs. |
| 11 (BUSY) | Conversion status indicator | Active-high open-drain output signaling conversion in progress; used for hardware handshaking or interrupt generation. |
| 12 (RDL/SDI) | Mode-dependent serial I/O | In normal mode: bus enable (active-low); in chain mode: serial data input (SDI) for cascaded configurations. |
| 13 (SCK) | Serial clock input | Accepts up to 100MHz SCK (10ns period); controls data shift-out timing on SDO; synchronous with CNV-triggered conversion. |
| 14 (SDO) | Serial data output | 2's complement 16-bit result shifted MSB-first on SCK rising edge; tri-state when RDL = low (normal mode) or CHAIN = low. |
| 15 (OVDD) | Digital I/O supply | 1.71V–5.25V logic supply; sets VIH/VIL thresholds; bypassed with 0.1µF capacitor; independent from VDD for mixed-voltage systems. |
Key Features
| Feature | Design Value |
|---|---|
| Digital Gain Compression (DGC) | Eliminates need for negative supply in front-end amplifiers by shifting full-scale range to 10%–90% of ±VREF, enabling single 5.5V-powered LT6350 drivers. |
| No Pipeline Delay / Zero Cycle Latency | Delivers first valid conversion result immediately after CNV rising edge-critical for deterministic real-time control loops and triggered acquisition. |
| H-Grade Temperature Rating | Specified over –40°C to +125°C with full performance (97dB SNR, ±0.5LSB INL), enabling deployment in under-hood automotive, downhole, or industrial environments. |
| Auto Power-Down Between Conversions | Reduces current draw to ≤0.9µA (H-grade) during idle periods, scaling power linearly with sampling rate for energy-constrained applications. |
| Internal Conversion Clock | Removes dependency on external timing sources; simplifies PCB layout and eliminates jitter contribution from external clock distribution paths. |
Applications
| Medical Imaging Signal Chain | Portable High-Speed Data Logger |
|---|---|
|
Use Scenario: Digitizing low-noise, wide-dynamic-range analog signals from ultrasound transducer front-ends or MRI gradient monitoring circuits. IC Role / Device Role / Timing Role: Precision SAR ADC capturing 500ksps continuous waveforms with 97dB SNR and <0.5LSB INL to preserve diagnostic image fidelity. Use Value: Enables 16-bit resolution without missing codes across –40°C to +125°C, ensuring consistent image quality in mobile or field-deployable medical equipment. |
Use Scenario: Battery-powered environmental sensor node acquiring vibration, temperature, and acoustic data in remote industrial sites. IC Role / Device Role / Timing Role: Low-power 16-bit ADC operating at variable rates (500ksps to 500sps) with auto power-down to extend multi-year battery life. Use Value: 6.8µW standby power and SPI daisy-chain capability allow scalable multi-channel logging with minimal PCB area and BOM count. |
| Industrial Process Control Loop | ATE Test Instrumentation |
|
Use Scenario: Closed-loop feedback digitization in servo drives or PLC analog I/O modules requiring deterministic latency and monotonic response. IC Role / Device Role / Timing Role: Zero-latency SAR ADC providing immediate conversion results post-CNV edge for sub-microsecond control cycle timing. Use Value: Guaranteed no-missing-codes and ±0.5LSB INL ensure accurate setpoint tracking and prevent instability in high-gain PID implementations. |
Use Scenario: High-accuracy DC parametric testing and AC performance validation of semiconductor devices on automated test equipment. IC Role / Device Role / Timing Role: Reference-grade ADC serving as measurement engine for voltage/current characterization with 97dB SNR and 123dB THD. Use Value: Differential input architecture and CMRR >86dB suppress common-mode noise from switching power supplies in dense ATE rack environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-power SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ-RL7 | 18-bit, 5Msps, 2.5V supply, no DGC, requires external reference buffer; consumes 39mW at full speed. | Higher resolution/speed but significantly higher power and cost; lacks integrated DGC and H-grade temp support. | Select when >16-bit ENOB and >500ksps throughput are mandatory; avoid if thermal budget or single-supply amplifier drive is constrained. |
| LTC2378IMS-18#TRPBF | 18-bit, 1Msps, same package and pinout, adds 2 extra MSB pins; shares DGC, SPI, and H-grade spec; consumes 12.5mW. | Drop-in upgrade path for resolution-critical applications; identical footprint and interface; requires minor firmware update for 18-bit reads. | Select when future-proofing for higher resolution is needed without board redesign; verify host controller supports 18-bit SPI frame length. |
Compared with AD7960BCPZ-RL7 and LTC2378IMS-18#TRPBF, the LTC2377HMS-16#TRPBF offers optimal balance of 16-bit precision, 500ksps speed, 6.8mW power, and DGC-enabled single-supply analog front-end design-making it uniquely suited for thermally constrained, cost-sensitive, and extended-temperature embedded systems.
Availability
LTC2377HMS-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging signal chains, portable high-speed data loggers, and industrial process control systems requiring stable component supply, long-term lifecycle assurance, and guaranteed H-grade temperature compliance.
Supply support for LTC2377HMS-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 LTC2377HMS-16#TRPBF belongs to ADI's legacy Linear Technology precision SAR ADC product line, engineered for applications demanding low power, high SNR, zero-latency conversion, and robust operation across extended industrial temperatures.
FAQ
What is the maximum operating temperature for the LTC2377HMS-16#TRPBF?
The LTC2377HMS-16#TRPBF is rated for continuous operation from –40°C to +125°C (H-grade), with all key specifications-including 97dB SNR, ±0.5LSB INL, and 500ksps throughput-guaranteed across this full range. This makes the LTC2377HMS-16#TRPBF suitable for under-hood automotive, downhole, or high-ambient industrial environments where standard commercial or industrial grade ADCs would fail.
Does the LTC2377HMS-16#TRPBF support daisy-chain configuration?
Yes, the LTC2377HMS-16#TRPBF supports daisy-chain SPI operation when the CHAIN pin (Pin 1) is driven high. In this mode, the RDL/SDI pin functions as serial data input, allowing multiple LTC2377HMS-16#TRPBF devices to share a single SCK and SDO line while using individual CNV and BUSY signals. The SDO output remains active during chain readout, enabling compact multi-channel acquisition without additional GPIO overhead.
How does Digital Gain Compression (DGC) work on the LTC2377HMS-16#TRPBF?
Digital Gain Compression (DGC) on the LTC2377HMS-16#TRPBF is enabled by grounding the REF/DGC pin (Pin 8). This remaps the full-scale input range from ±VREF to 0.1·VREF to 0.9·VREF (e.g., 0.5V–4.5V for VREF = 5V), preserving all 16 bits of resolution while eliminating the need for a negative supply in the driving amplifier. The LTC2377HMS-16#TRPBF performs internal digital scaling-no external recalibration is required.
What reference voltage range is supported by the LTC2377HMS-16#TRPBF?
The LTC2377HMS-16#TRPBF accepts an external reference voltage (REF pin, Pin 7) from 2.5V to 5.1V. At VREF = 5V, the LSB size is 152µV; at VREF = 2.5V, it is 76µV. The device maintains 97dB SNR and ±0.5LSB INL across this entire range. Reference current is 0.4mA (typ) and scales linearly with sample rate, requiring a low-noise, low-impedance source decoupled with a 47µF X5R ceramic capacitor.
Is the LTC2377HMS-16#TRPBF pin-compatible with other members of the LTC2377 family?
Yes, the LTC2377HMS-16#TRPBF shares identical pinout and footprint with all MSOP-packaged variants of the LTC2377 family-including LTC2377CMS-16#TRPBF (C-grade), LTC2377IMS-16#TRPBF (I-grade), and LTC2377HMS-16#TRPBF (H-grade). All use the same 16-lead MSOP package, identical pin functions, and compatible SPI timing, enabling drop-in replacement across temperature grades without PCB modification.
LTC2377HMS-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):
- 500k
- 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:
- -40°C ~ 125°C
- Supplier Device Package:
- 16-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2377HMS-16#TRPBF FAQ
1.How can I place an order for LTC2377HMS-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2377HMS-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 LTC2377HMS-16#TRPBF reliable?
The price and inventory of LTC2377HMS-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 LTC2377HMS-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2377HMS-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2377HMS-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2377HMS-16#TRPBF?
LTC2377HMS-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2377HMS-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 LTC2377HMS-16#TRPBF?
For technical support, including LTC2377HMS-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2377HMS-16#TRPBF requirements.
6.How does Aetrix verify that LTC2377HMS-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2377HMS-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 LTC2377HMS-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2377HMS-16#TRPBF?
All LTC2377HMS-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2377HMS-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 LTC2377HMS-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2377HMS-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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