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Analog Devices Inc. LTC1863CGN#TRPBF
- Part No.:
- LTC1863CGN#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1863CGN#TRPBF.pdf
- Description:
- IC ADC 12BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,451
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Product details
Overview
LTC1863CGN#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 speed, and supports unipolar (0–4.096V) or bipolar (±2.048V) conversion modes - used in industrial process control and battery-operated data acquisition systems.
For engineers reviewing the LTC1863CGN#TRPBF datasheet, LTC1863CGN#TRPBF pinout, LTC1863CGN#TRPBF application, or LTC1863CGN#TRPBF equivalent, key selection criteria include guaranteed 12-bit no-missing-codes performance, ±1LSB max INL over temperature, automatic nap mode power management, and narrow 16-pin SSOP packaging for space-constrained designs.
Technical Context
The LTC1863CGN#TRPBF implements a capacitive SAR architecture with factory-trimmed internal clock (typ. 3µs conversion time), differential comparator, and 7-bit configuration word controlling channel selection, input mode (single-ended/differential), polarity (unipolar/bipolar), and sleep activation. Its analog input MUX supports flexible topologies including 8 single-ended, 4 differential, or mixed configurations using CH7/COM as common terminal.
It integrates a curvature-corrected bandgap reference (2.5V ±20mV, ±15ppm/°C tempco) buffered to VREF (Pin 10) and amplified to 4.096V at REFCOMP (Pin 9), both requiring specific bypassing (2.2µF + 0.1µF and 10µF + 0.1µF respectively). Digital I/O complies with SPI timing up to 40MHz SCK, with CS/CONV serving dual roles: conversion trigger and serial frame enable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - guarantees monotonic transfer function and no missing codes across full temperature range (0°C to 70°C). |
| Sample 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 critical for closed-loop control and calibration-sensitive measurements. |
| SNR | 73.6dB typ. - supports 12-bit effective resolution in noise-limited applications such as sensor signal conditioning. |
| Supply Current | 1.3mA at 200ksps; 150µA in nap mode - reduces thermal load and extends battery life in portable instrumentation. |
| Analog Input Range | 0–4.096V (unipolar) or ±2.048V (bipolar) - matches standard industrial voltage ranges and simplifies front-end scaling. |
| Reference | Internal 2.5V ±20mV bandgap - eliminates external reference component count while maintaining ±15ppm/°C drift stability. |
Pinout & Package
Package: 16-lead narrow plastic SSOP (GN), 0.150" body width, 0.025" lead pitch - compatible with standard surface-mount reflow processes and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH6 (Pins 1–7) | Analog Input Channel | Single-ended inputs or positive terminals for differential pairs; low leakage (±1µA) enables direct connection to high-impedance sensors. |
| CH7/COM (Pin 8) | Configurable Terminal | Functions as eighth channel or common-mode reference (–) for differential/singles-ended modes based on COM bit in config word. |
| REFCOMP (Pin 9) | Reference Buffer Output | Provides 4.096V reference for ADC core; requires 10µF + 0.1µF bypass to GND for stable low-noise operation. |
| VREF (Pin 10) | Internal Reference Tap | Delivers 2.5V ±20mV bandgap voltage; can be overdriven externally via 6kΩ series resistor for improved accuracy/drift. |
| CS/CONV (Pin 11) | Conversion Start / Serial Frame | Rising edge initiates conversion; low state enables serial output; supports short-pulse (<100ns) or sustained high for nap mode. |
| SCK (Pin 12) | Serial Clock Input | Synchronizes 12-bit data transfer; supports up to 40MHz frequency with defined setup/hold timing (t5=15ns, t6=10ns). |
| SDO (Pin 13) | Digital Data Output | Outputs straight binary (unipolar) or two's complement (bipolar); Hi-Z when CS/CONV high; 19mA sink capability. |
| 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 before each conversion. |
| GND (Pin 15) | Analog/Digital Ground | Common return for all analog and digital circuitry; must connect to low-impedance ground plane per layout guidelines. |
| VDD (Pin 16) | Power Supply | Single 4.75–5.25V supply powers analog core, reference, and digital interface; requires 10µF + 0.1µF local bypass. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable 8-channel MUX | Supports 8 single-ended, 4 differential, or hybrid input topologies - eliminates need for external multiplexers in multi-sensor systems. |
| Automatic Nap Mode | Reduces current from 1.3mA to 150µA between conversions - cuts average power by >85% at 10ksps without software intervention. |
| On-chip 2.5V Reference | Factory-trimmed ±20mV initial accuracy and ±15ppm/°C tempco - removes external reference cost and board area in cost-sensitive designs. |
| Flexible Input Ranges | Hardware-selectable unipolar (0–4.096V) or bipolar (±2.048V) modes - accommodates diverse sensor outputs without external level-shifting. |
| SPI/MICROWIRE Compatibility | Standard 3-wire serial interface with CS/CONV framing - interoperates with microcontrollers lacking dedicated ADC peripherals. |
Applications
| Industrial Process Monitoring | Battery-Powered Data Loggers |
|---|---|
|
Use Scenario: Continuous monitoring of temperature, pressure, and flow sensors in PLC-based control cabinets. IC Role / Device Role / Timing Role: 12-bit precision ADC digitizing 8 analog sensor channels at 200ksps with internal reference stability. Use Value: Eliminates external reference and multiplexer components while maintaining ±1 LSB INL for regulatory-compliant calibration records. |
Use Scenario: Portable environmental sensor node logging temperature, humidity, and CO₂ over weeks on coin-cell battery. IC Role / Device Role / Timing Role: Low-power ADC enabling 1.3mA active and 150µA nap-mode operation synchronized to wake-up intervals. Use Value: Extends battery life by >5× versus fixed-rate sampling ICs through hardware-managed nap mode between measurements. |
| Multiplexed Test Equipment | Imaging Signal Conditioning |
|
Use Scenario: Benchtop multichannel oscilloscope front-end acquiring synchronized waveforms from multiple probes. IC Role / Device Role / Timing Role: 8-channel SAR ADC with 1.5µs acquisition time and 3µs conversion supporting 200ksps interleaved sampling. Use Value: Enables simultaneous capture of 8 signals with <100ns inter-channel skew using single-chip solution and shared reference. |
Use Scenario: Medical ultrasound receiver digitizing echo signals from phased-array transducers. IC Role / Device Role / Timing Role: Bipolar-mode ADC accepting ±2.048V differential inputs with 73.6dB SNR for baseband signal fidelity. Use Value: Preserves dynamic range of weak echo returns while rejecting common-mode noise from high-voltage pulsers via differential topology. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit multichannel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 12-bit, 200ksps, 4-channel, SPI interface, no internal reference - requires external 2.5V reference and external MUX for >4 channels. | Lower channel count limits use in 8-sensor systems without added components; higher 2.5mA supply current increases power budget. | Select when system already includes precision external reference and needs lower-cost 4-channel solution with identical speed. |
| MAX11131ETE+ | 12-bit, 500ksps, 8-channel, internal 4.096V reference, SPI interface - faster sampling but higher 3.2mA active current and larger 16-TQFN package. | Higher speed suits burst-mode acquisition; larger package footprint and thermal dissipation may limit use in ultra-compact designs. | Select when throughput >200ksps is required and board space allows 3mm × 3mm TQFN; verify thermal derating in sealed enclosures. |
Compared with ADS7822U and MAX11131ETE+, the LTC1863CGN#TRPBF delivers optimal balance of integrated functionality (8-channel MUX + 2.5V reference), ultra-low nap-mode current (150µA), and compact SSOP packaging - making it ideal for space- and power-constrained industrial data acquisition where 200ksps suffices.
Availability
LTC1863CGN#TRPBF is available at Aetrix Electronics and suitable for industrial process control, battery-powered data loggers, and multiplexed test equipment requiring stable component supply and long-term production continuity.
Supply support for LTC1863CGN#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, founded in 1965 and headquartered in Wilmington, MA.
The LTC1863CGN#TRPBF belongs to Analog Devices' precision data acquisition product line, designed specifically for low-power, multichannel industrial and portable measurement systems requiring integrated references and robust serial interfaces.
FAQ
What is the operating temperature range for the LTC1863CGN#TRPBF?
The LTC1863CGN#TRPBF is rated for 0°C to 70°C ambient operation, as indicated by the 'C' grade suffix in its part number. This commercial-grade specification ensures reliable performance in controlled-environment industrial electronics and benchtop instrumentation where extended temperature ranges are not required. The device maintains ±1 LSB INL and 200ksps throughput across this full range.
Does the LTC1863CGN#TRPBF require an external reference?
No, the LTC1863CGN#TRPBF includes a factory-trimmed 2.5V internal bandgap reference accessible at Pin 10 (VREF) and amplified to 4.096V at Pin 9 (REFCOMP). External reference is optional - only needed when tighter initial accuracy (<±20mV) or lower drift (<±15ppm/°C) is required. The internal reference eliminates BOM cost and board space in most 12-bit applications.
How does the automatic nap mode reduce power consumption in the LTC1863CGN#TRPBF?
The LTC1863CGN#TRPBF enters automatic nap mode when CS/CONV remains high after conversion completion, reducing supply current from 1.3mA to 150µA. This hardware-managed state keeps VREF and REFCOMP active but disables the SAR logic and comparator - cutting dynamic power while preserving reference stability for rapid wake-up. At 10ksps, average current drops to ~180µA.
Can the LTC1863CGN#TRPBF perform differential measurements?
Yes, the LTC1863CGN#TRPBF supports true differential measurements using any of four channel pairs (CH0/CH1, CH2/CH3, CH4/CH5, CH6/CH7) or CHX/CH7/COM combinations. The 7-bit configuration word selects differential mode (SD=0), odd/sign bit (OS), and channel address (S1/S0). Differential inputs reject common-mode noise and enable precise measurement of floating or ground-referenced signals.
What is the maximum SCK frequency supported by the LTC1863CGN#TRPBF?
The LTC1863CGN#TRPBF supports SCK frequencies up to 40MHz, as specified in the Timing Characteristics table. This allows fast serial readout of the 12-bit result in under 300ns per bit, enabling full conversion + readout cycles within the 5µs window at 200ksps. Setup (t5=15ns) and hold (t6=10ns) times are guaranteed over temperature, ensuring robust timing margin with standard microcontroller SPI peripherals.
LTC1863CGN#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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1863CGN#TRPBF FAQ
1.How can I place an order for LTC1863CGN#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1863CGN#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 LTC1863CGN#TRPBF reliable?
The price and inventory of LTC1863CGN#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1863CGN#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1863CGN#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1863CGN#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1863CGN#TRPBF?
LTC1863CGN#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1863CGN#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 LTC1863CGN#TRPBF?
For technical support, including LTC1863CGN#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1863CGN#TRPBF requirements.
6.How does Aetrix verify that LTC1863CGN#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1863CGN#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 LTC1863CGN#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1863CGN#TRPBF?
All LTC1863CGN#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1863CGN#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 LTC1863CGN#TRPBF part is unused and in its original packaging.
Return procedure for LTC1863CGN#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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