My Inquiry
My Account
Analog Devices Inc. LTC1392CS8#TRPBF
- Part No.:
- LTC1392CS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Thermal Management
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1392CS8#TRPBF.pdf
- Description:
- IC DATA ACQ SYSTEM 10BIT 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,793
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1392CS8#TRPBF from Analog Devices (formerly Linear Technology) is a micropower 10-bit data acquisition IC integrating ambient temperature sensing, on-chip power supply voltage monitoring, and rail-to-rail differential voltage measurement. It features 0.2µA idle supply current, 4.5V–6V single-supply operation, and a 3-wire half-duplex serial interface-enabling remote environmental monitoring in battery-powered microcontroller systems.
For engineers reviewing the LTC1392CS8#TRPBF datasheet, LTC1392CS8#TRPBF pinout, LTC1392CS8#TRPBF application, or LTC1392CS8#TRPBF equivalent, key selection considerations include guaranteed ±2°C temperature accuracy at 25°C, ±4°C over 0°C to 70°C, 10-bit resolution across all three measurement modes, and SO-8 package compatibility with space-constrained embedded designs.
Technical Context
The LTC1392CS8#TRPBF implements a successive approximation register (SAR) ADC with integrated bandgap reference (2.42V), sample-and-hold, analog multiplexer, and proprietary on-die temperature sensor. Its 3-wire serial interface operates synchronously with CLK falling-edge data transmission and rising-edge capture, supporting both MSB-first and LSB-first output formats.
Measurement mode is selected via a 4-bit configuration word: temperature (00), VCC monitor (01), 1V full-scale differential input (10), or 0.5V full-scale differential input (11). Conversion time is fixed at 10 clock cycles; analog input sample time requires 1.5 clock cycles. Self-heating is negligible below 400 SPS due to sub-20µA quiescent current in low-duty-cycle operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit for temperature, VCC, and differential voltage measurements-provides 0.25°C, ~4.7mV, and 0.977mV/0.488mV LSB steps respectively. |
| Temperature Accuracy | ±2°C at 25°C; ±4°C over full 0°C to 70°C operating range-enables reliable ambient thermal monitoring without external calibration. |
| Supply Current | 0.2µA idle; 700µA during sampling at max rate-supports multi-year battery life in intermittent-sensing applications. |
| Input Range | Rail-to-rail common-mode differential input (±VCC); supports direct current sensing via external shunt resistor. |
| Serial Interface | 3-wire half-duplex, synchronous, CS/CLK/DIN-DOUT shared line-reduces MCU GPIO count and simplifies isolation design. |
| Supply Voltage | 4.5V to 6V-compatible with standard 5V logic rails and tolerant of typical regulator dropout. |
| Conversion Time | 10 CLK cycles (e.g., 40µs at 250kHz)-enables up to 25kSPS burst sampling when clocked at maximum frequency. |
Pinout & Package
Package: 8-lead plastic SO (SO-8, narrow 0.150"), RoHS-compliant, tape-and-reel (TRPBF suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DIN (Pin 1) | Digital input | Receives 4-bit configuration word (Start, SEL1, SEL0, MSBF) after CS fall; ignored once conversion starts. |
| DOUT (Pin 2) | Digital output | Transmits 10-bit result (MSB-first or LSB-first) after null bit; tri-states when CS high. |
| CLK (Pin 3) | Serial clock | Synchronizes data transfer; falling edge clocks data out, rising edge captures DIN input. |
| CS (Pin 4) | Chip select | Active-low enable; initiates conversion sequence and controls DOUT output enable timing. |
| GND (Pin 5) | Analog/digital ground | Single ground reference for all analog and digital circuitry; must connect directly to low-impedance analog plane. |
| +VIN (Pin 6) | Positive differential input | Accepts rail-to-rail common-mode voltage; used with –VIN for differential sensing or grounded for single-ended use. |
| –VIN (Pin 7) | Negative differential input | Completes differential pair; noise-sensitive-requires local bypassing and quiet routing. |
| VCC (Pin 8) | Positive supply | 4.5V–6V input; must be bypassed with ≥1µF ceramic capacitor directly to GND to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature sensor | On-die sensor with linear output (°C = code/4 – 130) eliminates external thermistor and signal conditioning. |
| Triple-function measurement | Single IC measures ambient temperature, system VCC, and external differential voltage-reducing BOM count and PCB area. |
| Rail-to-rail differential input | Supports ±VCC common-mode range, enabling direct current sensing with shunt resistors down to milliohm values. |
| Micropower operation | 0.2µA standby current allows integration into always-on sensor nodes without compromising battery lifetime. |
| Flexible serial interface | Half-duplex 3-wire mode reduces interconnect count; MSB/LSB-first programmability eases integration with diverse MCU serial peripherals. |
Applications
| Temperature Monitoring | Power Supply Supervision |
|---|---|
Use Scenario: Real-time ambient temperature tracking in portable medical devices and industrial controllers where thermal drift affects sensor accuracy. IC Role / Device Role / Timing Role: Primary temperature transducer delivering calibrated 10-bit digital output via serial interface to host MCU. Use Value: ±2°C initial accuracy at 25°C and ±4°C over 0°C–70°C eliminates need for external calibration while maintaining system-level thermal stability. | Use Scenario: Continuous monitoring of 5V rail integrity in embedded systems to detect brown-out conditions before MCU reset. IC Role / Device Role / Timing Role: On-chip VCC monitor converting supply voltage to 10-bit unipolar code using internal reference. Use Value: Guaranteed 4.5V–6V measurement range with <±15 LSB full-scale error ensures reliable detection of 5%–10% supply droop. |
| Current Sensing | Remote Data Acquisition |
Use Scenario: Bidirectional current measurement in battery management systems using low-value shunt resistors. IC Role / Device Role / Timing Role: Differential voltage converter measuring mV-level drops across sense resistor with 0.5V or 1V full-scale options. Use Value: Rail-to-rail common-mode input enables accurate sensing even when shunt is placed on high-side of load with VCC-referenced common mode. | Use Scenario: Wireless sensor node collecting temperature and supply data for transmission across opto-isolator or RF link. IC Role / Device Role / Timing Role: Low-power data acquisition front-end providing digitized measurements over minimal-pin-count serial interface. Use Value: 0.2µA idle current and 3-wire interface minimize power and isolation component count-critical for isolated telemetry designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature, supply, and differential voltage monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1270BCPP+ | 12-bit resolution, SPI interface, 5V-only supply, no integrated temperature sensor | Higher precision voltage/current measurement only; lacks ambient temperature capability | Select when higher ADC resolution is required and temperature sensing is handled separately. |
| ADS1118IPW | 16-bit delta-sigma ADC, integrated temp sensor, SPI interface, 2.0–5.5V supply, internal oscillator | Broadens voltage range and resolution but consumes >150µA active current | Choose for ultra-low-drift precision applications where power budget allows >75× higher active current. |
Compared with MAX1270BCPP+ and ADS1118IPW, the LTC1392CS8#TRPBF uniquely combines micropower operation (0.2µA idle), triple-function integration (temp/VCC/diff), and 3-wire simplicity-making it optimal for cost- and power-sensitive embedded monitors where 10-bit resolution suffices.
Availability
LTC1392CS8#TRPBF is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial controller health monitoring, and portable environmental sensors requiring stable component supply and long-term obsolescence support.
Supply support for LTC1392CS8#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 acquired Linear Technology in 2017 and maintains its precision analog portfolio, including legacy high-performance data acquisition ICs like the LTC1392 series.
The LTC1392CS8#TRPBF belongs to Linear's micropower sensor interface product line, designed specifically for low-cost, low-power embedded systems needing integrated temperature, supply, and differential voltage monitoring without external signal conditioning.
FAQ
What is the operating temperature range for the LTC1392CS8#TRPBF?
The LTC1392CS8#TRPBF is specified for commercial-grade operation from 0°C to 70°C. Its temperature accuracy is guaranteed at ±2°C at 25°C and ±4°C across this full range. Operation outside this range is not characterized, and errors may exceed specifications. The device's junction temperature limit is 125°C, but sustained operation near that limit requires careful thermal design due to self-heating effects.
How does the LTC1392CS8#TRPBF measure temperature, and what is its output format?
The LTC1392CS8#TRPBF uses an on-die proprietary temperature sensor and outputs a 10-bit unipolar code. Temperature in °C is calculated as Output Code ÷ 4 − 130. For example, code 0x254 (600 decimal) yields 25.0°C. This linear relationship eliminates lookup tables or polynomial compensation in firmware. The LTC1392CS8#TRPBF delivers this value over its 3-wire serial interface after configuration and conversion.
Can the LTC1392CS8#TRPBF measure voltages other than VCC and differential inputs?
No-the LTC1392CS8#TRPBF supports only three measurement modes: ambient temperature, on-chip VCC supply voltage, and differential voltage between +VIN and –VIN pins. It does not support arbitrary single-ended analog inputs or external reference voltages. The differential input can be used for current sensing via an external shunt, but all conversions rely on the internal 2.42V bandgap reference and fixed full-scale ranges (1V or 0.5V).
What is the minimum clock frequency supported by the LTC1392CS8#TRPBF serial interface?
The LTC1392CS8#TRPBF does not specify a minimum clock frequency; it supports DC-coupled clock operation. However, timing parameters such as tWAKEUP (10µs for non-temperature modes) and tCYC (74µs at 250kHz) imply practical lower limits based on system timing margins. At very low frequencies, ensure CS remains asserted long enough to complete tCONV (10 CLK cycles) and tdDO (≤300ns), though no functional failure occurs at arbitrarily slow clocks.
Is the LTC1392CS8#TRPBF pin-compatible with other members of the LTC1392 family?
Yes-the LTC1392CS8#TRPBF shares identical pinout and functionality with all SO-8 variants in the LTC1392 family, including LTC1392IS8 and LTC1392CS8. Differences are limited to temperature grade (C vs I) and packaging (SO-8 vs PDIP). No PCB layout changes are needed when substituting within the same package type, though system-level validation is recommended for industrial-grade operation beyond 70°C.
LTC1392CS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Temp Monitoring System (Sensor)
- Sensor Type:
- Internal
- Sensing Temperature:
- 0°C ~ 70°C
- Accuracy:
- ±4°C
- Topology:
- ADC, Multiplexer, Voltage Reference
- Output Type:
- Parallel, Serial
- Output Alarm:
- No
- Output Fan:
- No
- Voltage - Supply:
- 4.5V ~ 6V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
LTC1392CS8#TRPBF FAQ
1.How can I place an order for LTC1392CS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1392CS8#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 LTC1392CS8#TRPBF reliable?
The price and inventory of LTC1392CS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1392CS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1392CS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1392CS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1392CS8#TRPBF?
LTC1392CS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1392CS8#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 LTC1392CS8#TRPBF?
For technical support, including LTC1392CS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1392CS8#TRPBF requirements.
6.How does Aetrix verify that LTC1392CS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1392CS8#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 LTC1392CS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1392CS8#TRPBF?
All LTC1392CS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1392CS8#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 LTC1392CS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC1392CS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1392CS8#TRPBF Tags
-
EMC2101-ACZL-TR
Microchip Technology
-
MCP9844T-BE/MNY
Microchip Technology
-
EMC2101-R-ACZL-TR
Microchip Technology
-
MCP98244T-BE/MNY
Microchip Technology
-
TC670ECHTR
Microchip Technology
-
SE98ATP,547
NXP Semiconductors
-
AMC6821SDBQR
Texas Instruments
-
MAX6604AATA+T
Analog Devices Inc./Maxim Integrated
-
ADT7475ARQZ-REEL
onsemi
-
MAX6643LBBAEE+
Analog Devices Inc./Maxim Integrated
-
MAX6684ESA+T
Analog Devices Inc./Maxim Integrated
-
MAX6639AEE+
Analog Devices Inc./Maxim Integrated
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…
