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Analog Devices Inc. LTC1863IGN#TRPBF
- Part No.:
- LTC1863IGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1863IGN#TRPBF.pdf
- Description:
- IC ADC 12BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,160
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Product details
Overview
LTC1863IGN#TRPBF from Analog Devices is a 12-bit, 8-channel, 200ksps successive approximation ADC with integrated 2.5V reference, SPI/MICROWIRE interface, and configurable single-ended/differential input multiplexer. It operates from a single 5V supply, draws 1.3mA at full rate, and supports unipolar (0–4.096V) or bipolar (±2.048V) conversion modes - used in industrial process control and battery-powered data acquisition systems.
For engineers reviewing the LTC1863IGN#TRPBF datasheet, LTC1863IGN#TRPBF pinout, LTC1863IGN#TRPBF application, or LTC1863IGN#TRPBF equivalent, key selection criteria include guaranteed 12-bit no-missing-codes performance over –40°C to +85°C, ±1LSB max INL, 73.6dB SNR, automatic nap mode power management, and narrow 16-pin SSOP package compatibility with LTC1867 series.
Technical Context
The LTC1863IGN#TRPBF implements a capacitive SAR architecture with internal differential 12-bit DAC, low-power comparator, and sample-and-hold circuit acquiring analog inputs in ≤1.5µs. Its 8-channel MUX accepts programmable configurations via 7-bit serial command (SD/OS/S1/S0/COM/UNI/SLP), enabling mixed single-ended and differential channel pairs using CH7/COM as common or dedicated input.
Digital interface uses CS/CONV-rising-edge conversion start, followed by SPI-compatible serial readout on SDO (straight binary for unipolar, two's complement for bipolar). Internal clock is factory-trimmed for 3µs typical conversion time; VREF (2.5V ±15ppm/°C) and REFCOMP (4.096V) outputs support external overdrive and precision bypassing with 2.2µF/10µF capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - guarantees monotonic transfer function and no missing codes across –40°C to +85°C operating range. |
| Sampling Rate | 200ksps - enables real-time capture of signals up to 1.25MHz full-power bandwidth without aliasing. |
| INL | ±1 LSB max - ensures accurate end-point linearity for calibration-sensitive industrial sensor interfaces. |
| SNR | 73.6 dB typical - supports 12-bit effective resolution in noise-critical analog front-ends. |
| Supply Current | 1.3 mA at 200ksps; 150 µA in nap mode - reduces thermal load and extends battery life in portable instrumentation. |
| Analog Input Range | 0–4.096 V (unipolar) or ±2.048 V (bipolar) - matches standard industrial voltage/current transducer outputs. |
| Reference | Internal 2.5V bandgap (±15 ppm/°C) buffered to 4.096V at REFCOMP - eliminates need for external reference in cost-sensitive designs. |
Pinout & Package
Package: 16-lead narrow plastic SSOP (GN), 0.150" body width, –40°C to +85°C industrial temperature grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH6 (Pins 1–7) | Analog Input Channel | Single-ended or differential "+" inputs; configurable via COM bit to pair with CH7/COM as "–". |
| CH7/COM (Pin 8) | Configurable Analog Terminal | Acts as eighth channel (CH7) when COM = 0; serves as common "–" input for differential pairs when COM = 1. |
| REFCOMP (Pin 9) | Reference Buffer Output | 4.096V precision output; must be bypassed with 10µF + 0.1µF to GND for stable low-noise operation. |
| VREF (Pin 10) | Internal Reference Output | 2.5V bandgap reference; can be overdriven externally via 6kΩ series resistor for improved accuracy/drift. |
| CS/CONV (Pin 11) | Conversion Start & Serial Frame | Rising edge initiates conversion; falling edge enables serial data output on SDO. |
| SCK (Pin 12) | Serial Clock Input | Synchronizes 12-bit data shift-out on SDO and config word shift-in on SDI (up to 40MHz). |
| SDO (Pin 13) | Digital Data Output | Outputs conversion result: straight binary (unipolar) or two's complement (bipolar); high-impedance when CS/CONV high. |
| SDI (Pin 14) | Serial Configuration Input | Accepts 7-bit control word (SD/OS/S1/S0/COM/UNI/SLP) to configure MUX, polarity, and sleep mode. |
| GND (Pin 15) | Analog/Digital Ground | Common return for analog inputs, reference, and digital I/O; requires solid ground plane for noise immunity. |
| VDD (Pin 16) | Power Supply | Single 4.75–5.25V supply powering analog core, reference, and digital interface; bypass with 10µF + 0.1µF. |
Key Features
| Feature | Design Value |
|---|---|
| 8-channel configurable MUX | Supports simultaneous single-ended (8 channels) or differential (4 channels) acquisition, plus mixed-mode configurations using CH7/COM as shared reference. |
| Automatic nap mode | Reduces current from 1.3mA to 150µA between conversions without software intervention - cuts average power proportionally to sampling rate. |
| On-chip 2.5V reference | Factory-trimmed bandgap with ±15ppm/°C tempco and 0.43mV/V line regulation - eliminates external reference component count and layout area. |
| SPI/MICROWIRE compatibility | Uses standard 3-wire serial interface (CS/CONV, SCK, SDO/SDI) with no external logic required - simplifies host microcontroller integration. |
| Industrial temperature range | Specified from –40°C to +85°C with full performance (INL, SNR, timing) guaranteed - suitable for harsh factory-floor environments. |
Applications
| Industrial Process Monitoring | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Continuous monitoring of 4–20mA current loops, thermocouple outputs, and RTD bridges in PLC I/O modules. IC Role / Device Role / Timing Role: 12-bit ADC digitizing multiple sensor inputs with programmable gain and bipolar range to handle negative offsets and bidirectional signals. Use Value: ±1 LSB INL and 73.6dB SNR ensure <0.025% measurement error across temperature, meeting SIL-2 functional safety requirements for loop diagnostics. | Use Scenario: Portable environmental sensors logging temperature, humidity, and air quality over weeks on coin-cell batteries. IC Role / Device Role / Timing Role: Low-power ADC performing burst-mode sampling at 10ksps, then entering nap mode for >99% duty cycle reduction. Use Value: 150µA nap current and automatic wake-on-CS/CONV enable multi-year battery life without complex power-state firmware. |
| Multiplexed Sensor Arrays | Imaging System Front-Ends |
Use Scenario: Medical diagnostic equipment scanning 8-channel electrode arrays for ECG or bioimpedance measurements. IC Role / Device Role / Timing Role: Simultaneous sampling of differential biopotential signals with CH7/COM as driven-right-leg reference. Use Value: 100dB channel-to-channel isolation at 100kHz prevents crosstalk between adjacent electrodes during fast transient detection. | Use Scenario: Industrial machine vision cameras capturing line-scan CCD outputs with precise timing and low noise. IC Role / Device Role / Timing Role: Digitizing analog pixel data at 200ksps with 1.25MHz full-power bandwidth and minimal aperture jitter. Use Value: 3µs conversion time and 1.5µs acquisition window allow tight synchronization to pixel clock edges without external sample-hold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC1867IGN#TRPBF | 16-bit resolution, ±2 LSB INL, 89dB SNR, same pinout/package - higher precision at identical power and interface. | Used where 16-bit dynamic range is required (e.g., high-fidelity audio test, precision metrology), not for basic 12-bit sensor digitization. | Select LTC1867IGN#TRPBF when system-level accuracy demands >12-bit ENOB and SNR >85dB. |
| ADS8320IDR | 16-bit, 100ksps, SPI interface, external reference only, SOIC-8 package - lower speed, smaller footprint, no internal reference. | Preferred in space-constrained, low-throughput applications where external 4.096V reference already exists and 12-bit resolution is insufficient. | Choose ADS8320IDR when board area is critical, sampling rate ≤100ksps suffices, and reference sourcing is centralized. |
Compared with LTC1863IGN#TRPBF, LTC1867IGN#TRPBF delivers 4 extra bits of resolution and 15dB higher SNR in identical hardware, while ADS8320IDR trades speed and internal reference for compactness - making each viable only within distinct accuracy, throughput, and BOM constraints.
Availability
LTC1863IGN#TRPBF is available at Aetrix Electronics and suitable for industrial process control, battery-operated data loggers, and multiplexed sensor array applications requiring stable component supply across extended temperature ranges.
Supply support for LTC1863IGN#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC1863IGN#TRPBF belongs to the LTC® precision ADC family, designed specifically for low-power, multi-channel data acquisition in space- and energy-constrained industrial systems.
FAQ
What is the guaranteed operating temperature range for the LTC1863IGN#TRPBF?
The LTC1863IGN#TRPBF is specified for continuous operation from –40°C to +85°C, with all electrical parameters (including INL, SNR, and timing) fully guaranteed across this industrial temperature range per the official Analog Devices datasheet Rev. E.
Does the LTC1863IGN#TRPBF require an external reference voltage?
No, the LTC1863IGN#TRPBF includes a factory-trimmed 2.5V internal bandgap reference routed to VREF (Pin 10) and amplified to 4.096V at REFCOMP (Pin 9). An external reference is optional - used only when tighter initial accuracy or lower drift than ±15ppm/°C is required.
How does the LTC1863IGN#TRPBF handle differential versus single-ended input configurations?
The LTC1863IGN#TRPBF uses a 7-bit serial configuration word where the SD (single/differential) and COM (CH7/COM mode) bits determine input topology. With COM = 0, CH7 functions as independent channel CH7; with COM = 1, CH7 becomes common "–" for differential pairs like CH0–CH7/COM, enabling flexible mixed-mode acquisition without hardware changes.
What power-saving modes does the LTC1863IGN#TRPBF support, and how are they activated?
The LTC1863IGN#TRPBF supports automatic nap mode (entered when CS/CONV remains high post-conversion, drawing 150µA) and explicit sleep mode (activated by setting SLP = 1 in the configuration word, drawing 0.2µA). Wake-up from sleep requires 60ms after CS/CONV assertion to stabilize VREF/REFCOMP.
Is the LTC1863IGN#TRPBF pin-compatible with other members of the LTC1863/LTC1867 family?
Yes, the LTC1863IGN#TRPBF is fully pin-compatible with LTC1867IGN#TRPBF, LTC1863CGN#TRPBF, and all GN-package variants in the family. Identical 16-pin SSOP layout, pin functions, and timing allow direct substitution where resolution and temperature grade align with system requirements.
LTC1863IGN#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 8
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1863IGN#TRPBF FAQ
1.How can I place an order for LTC1863IGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1863IGN#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 LTC1863IGN#TRPBF reliable?
The price and inventory of LTC1863IGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1863IGN#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1863IGN#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1863IGN#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1863IGN#TRPBF?
LTC1863IGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1863IGN#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 LTC1863IGN#TRPBF?
For technical support, including LTC1863IGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1863IGN#TRPBF requirements.
6.How does Aetrix verify that LTC1863IGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1863IGN#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 LTC1863IGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1863IGN#TRPBF?
All LTC1863IGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1863IGN#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 LTC1863IGN#TRPBF part is unused and in its original packaging.
Return procedure for LTC1863IGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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