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Analog Devices Inc. LTC2370HMS-16#TRPBF
- Part No.:
- LTC2370HMS-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2370HMS-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,607
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Product details
Overview
LTC2370HMS-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 2Msps pseudo-differential unipolar successive approximation register (SAR) ADC operating from a single 2.5V supply. It delivers ±0.85LSB INL max, 94dB SNR at 2kHz, no missing codes, and supports VREF from 2.5V to 5.1V - enabling high-fidelity signal acquisition in compact, thermally demanding instrumentation.
For engineers reviewing the LTC2370HMS-16#TRPBF datasheet, LTC2370HMS-16#TRPBF pinout, LTC2370HMS-16#TRPBF application, or LTC2370HMS-16#TRPBF equivalent, key selection criteria include guaranteed 125°C operation, zero-cycle-latency SPI interface with daisy-chain mode, internal conversion clock, and 19mW power dissipation at full throughput.
Technical Context
The LTC2370HMS-16#TRPBF employs a charge-redistribution CDAC architecture with pseudo-differential sampling, where IN+ accepts 0V–VREF while IN– operates as a ground-sense node (±100mV range). Its internal oscillator eliminates external clock dependency, and conversion timing is fixed at 278–322ns with no pipeline delay.
It features dual-supply operation: 2.375–2.625V on VDD for analog core and 1.71–5.25V on OVDD for flexible I/O logic compatibility (1.8V/2.5V/3.3V/5V). The CHAIN pin enables daisy-chain configuration, and RDL/SDI reconfigures between bus-enable and serial-data-input roles based on CHAIN state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees full 65,536-level quantization with no missing codes across temperature. |
| Sampling Rate | 2Msps - enables real-time capture of signals up to 1MHz Nyquist bandwidth without undersampling. |
| INL (Max) | ±0.85LSB - ensures monotonicity and <0.0013% full-scale linearity error for precision measurement systems. |
| SNR (Typ) | 94dB at fIN=2kHz - corresponds to ~15.6 effective bits (ENOB), critical for low-noise sensor interfaces. |
| Power (2Msps) | 19mW - achieved with 2.5V VDD and 2.5V OVDD, supporting battery-constrained portable instrumentation. |
| Operating Temp | –40°C to +125°C - qualified for industrial process control and under-hood automotive data acquisition. |
| VREF Range | 2.5V to 5.1V - allows dynamic input range scaling while maintaining LSB size from 38µV to 78µV. |
Pinout & Package
Package: 16-lead plastic MSOP (5.0mm × 4.4mm × 1.1mm), exposed pad not present (DFN variant has exposed GND pad; MSOP does not).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CHAIN (1) | Mode selector | High = daisy-chain mode (RDL/SDI becomes SDI); Low = normal mode (RDL/SDI enables SDO tri-state). |
| VDD (2) | Analog core supply | 2.375–2.625V only; bypassed with 10µF ceramic capacitor to GND for noise immunity. |
| GND (3,6,10,16) | Ground reference | Four dedicated GND pins minimize ground bounce and ensure stable reference for IN+/IN–. |
| IN+ (4) | Pseudo-diff input+ | Accepts 0V to VREF; sees 45pF capacitance and 40Ω switch resistance during acquisition. |
| IN– (5) | Ground sense input | ±100mV range relative to GND; must connect to system ground plane or remote ground point. |
| REF (7,8) | Reference voltage input | Dual-pin connection for low-impedance decoupling; requires 47µF X5R ceramic capacitor at package. |
| CNV (9) | Convert trigger | Rising edge initiates acquisition/conversion; no minimum pulse width required beyond 20ns high time. |
| BUSY (11) | Conversion status | Active-high open-drain output; asserts within 13ns of CNV↑ and deasserts after 322ns conversion completes. |
| RDL/SDI (12) | Configurable I/O | Function depends on CHAIN state; in chain mode, receives serial data from upstream ADC in daisy chain. |
| SCK (13) | Serial clock input | Supports up to 100MHz clock (10ns period); rising edge clocks out SDO data or shifts in SDI data. |
| SDO (14) | Serial data output | MSB-first straight-binary output; valid 9.5ns after SCK↑; compatible with 1.8V–5V host logic levels via OVDD. |
| OVDD (15) | I/O supply | 1.71–5.25V digital interface supply; sets VIH/VIL thresholds and drives SDO/SCK/RDL/SDI/BUSY logic levels. |
Key Features
| Feature | Design Value |
|---|---|
| No cycle latency | Immediate data availability after BUSY deassertion - eliminates FIFO buffering and simplifies real-time control loops. |
| Auto power-down | Reduces current to 0.9µA between conversions - cuts average power by >99% during idle periods in burst-sampling applications. |
| Daisy-chain SPI | Enables multi-ADC synchronization with single SCK/SDO lines - reduces PCB routing complexity and host GPIO count in channel-dense systems. |
| Internal conversion clock | Removes need for external timing circuitry - improves system reliability and reduces BOM count in space-constrained designs. |
| 125°C guaranteed operation | Validated performance over full H-grade range - supports deployment in motor drives, downhole tools, and industrial enclosures without derating. |
Applications
| Medical Imaging Front-End | High-Speed ATE Test Channel |
|---|---|
Use Scenario: Digitizing ultrasound echo signals or MRI gradient waveforms requiring wide dynamic range and minimal harmonic distortion. IC Role / Device Role / Timing Role: Primary SAR ADC capturing 2Msps analog inputs with 94dB SNR and –112dB THD to preserve diagnostic image fidelity. Use Value: Enables 16-bit resolution at full speed without interpolation, reducing post-processing latency and preserving small-signal contrast in deep-tissue imaging. | Use Scenario: High-channel-count automated test equipment performing parametric measurements on mixed-signal ICs. IC Role / Device Role / Timing Role: Precision digitizer synchronized across multiple channels via daisy-chained CNV and SCK for deterministic timing alignment. Use Value: Eliminates inter-channel skew and supports simultaneous sampling across ≥8 channels using single controller SPI interface. |
| Portable Spectrum Analyzer | Industrial Motor Current Monitor |
Use Scenario: Battery-powered handheld RF analyzers needing low power, high SNR, and thermal resilience in field environments. IC Role / Device Role / Timing Role: Core ADC acquiring baseband IF signals with internal clocking and 19mW active power to extend battery life. Use Value: Delivers 15.6 ENOB at 2Msps while operating continuously at 85°C ambient - avoids forced cooling and enables fanless enclosure design. | Use Scenario: Real-time monitoring of three-phase motor currents in variable-frequency drives with ambient temperatures up to 125°C. IC Role / Device Role / Timing Role: Isolated current-sense ADC interfacing to shunt amplifiers, providing precise 16-bit feedback for closed-loop torque control. Use Value: Guaranteed ±0.85LSB INL at 125°C ensures <0.002% gain error drift - maintains torque accuracy across full industrial temperature range. |
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, 5Msps, 2.5V supply, but requires external reference and separate VIO supply; no daisy-chain mode. | Higher resolution/speed, but larger PCB footprint (32-lead LFCSP) and higher power (43mW at 5Msps). | Select when >16-bit resolution is mandatory and board area permits larger package and additional support components. |
| ADS8860IRGET | 16-bit, 1Msps, 2.5–5V supply, SPI-compatible, but only rated to 85°C; no CHAIN pin or daisy-chain capability. | Lower power (11mW), smaller 20-pin VQFN, but lacks 125°C rating and multi-ADC synchronization features. | Select for cost-sensitive, lower-throughput portable instruments where extended temperature operation is not required. |
Compared with AD7960BCPZ-RL7 and ADS8860IRGET, the LTC2370HMS-16#TRPBF uniquely balances 2Msps throughput, 125°C operation, integrated daisy-chain support, and ultra-low 19mW power - making it optimal for thermally constrained, multi-channel, high-reliability embedded acquisition systems.
Availability
LTC2370HMS-16#TRPBF is available at Aetrix Electronics and suitable for medical imaging front-ends, high-speed ATE test channels, and industrial motor current monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2370HMS-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 LTC2370-16 product line was designed for high-speed, low-power, high-accuracy data acquisition in thermally demanding environments - emphasizing robustness, ease of timing integration, and seamless multi-ADC scalability.
FAQ
What is the maximum operating temperature specification for the LTC2370HMS-16#TRPBF?
The LTC2370HMS-16#TRPBF is an H-grade device specified for continuous operation from –40°C to +125°C. This rating is fully tested and guaranteed per the Absolute Maximum Ratings table, with all key parameters-including INL, SNR, and THD-validated across this full range. The LTC2370HMS-16#TRPBF achieves ±0.85LSB INL max and 94dB SNR even at 125°C junction temperature, making it suitable for under-hood automotive or enclosed industrial deployments where passive cooling is limited.
Does the LTC2370HMS-16#TRPBF require an external clock source for conversion timing?
No, the LTC2370HMS-16#TRPBF integrates an internal oscillator that precisely controls conversion time (278–322ns), eliminating dependency on external clock sources. This simplifies system design by removing clock distribution challenges, jitter sensitivity, and layout constraints associated with high-frequency clock routing. The internal clock also ensures deterministic timing across temperature and supply variations - a key advantage over externally clocked SAR ADCs where timing margins degrade under stress conditions.
How does the CHAIN pin affect the functionality of the RDL/SDI pin on the LTC2370HMS-16#TRPBF?
On the LTC2370HMS-16#TRPBF, the CHAIN pin acts as a hardware mode selector for the RDL/SDI pin. When CHAIN is low, RDL/SDI functions as a bus-enable input controlling SDO tri-state behavior. When CHAIN is high, RDL/SDI becomes a serial data input (SDI), allowing the device to receive daisy-chained data from an upstream ADC. This dual-role configuration is determined solely by CHAIN's logic level (referenced to OVDD) and enables flexible topology selection without firmware reconfiguration.
What is the recommended decoupling strategy for the REF pins of the LTC2370HMS-16#TRPBF?
The LTC2370HMS-16#TRPBF requires a 47µF X5R ceramic capacitor (0805 size) placed directly at the REF pins (7 and 8), with minimal trace length and direct connection to a solid ground plane. This large-value capacitor supplies transient charge (QCONV) drawn during each conversion cycle. Additionally, a low-ESR 10nF capacitor should be placed in parallel for high-frequency noise suppression. The LTC6655-5 reference IC is specifically recommended due to its 2ppm/°C drift and fast settling, ensuring <0.5LSB reference deviation across the full code span at 2Msps.
Can the LTC2370HMS-16#TRPBF operate with different supply voltages on VDD and OVDD?
Yes, the LTC2370HMS-16#TRPBF supports independent supply domains: VDD must be 2.375–2.625V (nominal 2.5V) for the analog core, while OVDD may range from 1.71V to 5.25V to match host logic levels (1.8V, 2.5V, 3.3V, or 5V). This separation allows interfacing with diverse microcontrollers and FPGAs without level shifters. However, absolute maximum ratings prohibit OVDD exceeding VDD by more than 2.5V, and both supplies must remain within their respective ranges simultaneously to guarantee specified performance and reliability.
LTC2370HMS-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):
- 2M
- 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:
- -
LTC2370HMS-16#TRPBF FAQ
1.How can I place an order for LTC2370HMS-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2370HMS-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 LTC2370HMS-16#TRPBF reliable?
The price and inventory of LTC2370HMS-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 LTC2370HMS-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2370HMS-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2370HMS-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2370HMS-16#TRPBF?
LTC2370HMS-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2370HMS-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 LTC2370HMS-16#TRPBF?
For technical support, including LTC2370HMS-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2370HMS-16#TRPBF requirements.
6.How does Aetrix verify that LTC2370HMS-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2370HMS-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 LTC2370HMS-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2370HMS-16#TRPBF?
All LTC2370HMS-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2370HMS-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 LTC2370HMS-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2370HMS-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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