My Inquiry
My Account
Analog Devices Inc. LTC1863LCGN#PBF
- Part No.:
- LTC1863LCGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1863LCGN#PBF.pdf
- Description:
- IC ADC 12BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,391
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1863LCGN#PBF from Analog Devices is a 12-bit, 175ksps micropower successive-approximation ADC with integrated 1.25V reference, 8-channel analog multiplexer (configurable for single-ended or differential inputs), SPI/MICROWIRE serial interface, and automatic nap/sleep modes. It operates from a 2.7V supply, draws 750µA at full rate, and delivers ±1LSB max INL in unipolar mode - ideal for battery-powered industrial data acquisition systems.
For engineers reviewing the LTC1863LCGN#PBF datasheet, LTC1863LCGN#PBF pinout, LTC1863LCGN#PBF application, or LTC1863LCGN#PBF equivalent, key selection factors include guaranteed 175ksps throughput with 3.2µs conversion time, true differential input capability across all eight channels, internal reference accuracy (±1.25V ±15mV), low-power sleep mode (0.2µA), and narrow 16-pin SSOP package compatibility with automotive-grade variants.
Technical Context
The LTC1863LCGN#PBF implements a capacitive SAR architecture with differential 12-bit DAC core, low-power comparator rejecting common-mode noise, and on-chip sample-and-hold with 2.01µs acquisition time. Its configurable 7-bit control word selects channel, polarity (unipolar/bipolar), input type (single-ended/differential), and sleep mode activation.
It features dual-reference support: internal 1.25V bandgap reference (±20ppm/°C tempco) buffered to VREF (Pin 10), and REFCOMP (Pin 9) providing 2.5V output (gain ×2) with external bypassing. Digital interface uses CS/CONV rising edge to trigger conversion and SCK/SDO for serial readout in straight binary (unipolar) or two's complement (bipolar) format.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - guarantees monotonicity and no missing codes over temperature; supports high-fidelity sensor digitization without interpolation. |
| Sample Rate | 175ksps - enables real-time capture of signals up to 87.5kHz (Nyquist), suitable for vibration monitoring and motor current sampling. |
| INL (Unipolar) | ±1 LSB max - ensures end-point linearity error ≤0.024% FS, critical for precision process control loop feedback. |
| Supply Current | 750 µA at 175ksps, 170 µA in nap mode, 0.2 µA in sleep - enables multi-year operation on coin-cell batteries in remote telemetry nodes. |
| Analog Input Range | 0V to 2.5V (unipolar) or ±1.25V (bipolar) - matches standard sensor outputs and op-amp rails without external level-shifting. |
| Reference Voltage | Internal 1.25V ±15mV (±1.2%), 2.5V at REFCOMP - eliminates need for external reference IC in cost-sensitive designs while maintaining <0.1% gain error. |
| Package | 16-pin narrow SSOP (GN), 0°C to 70°C operating range - compatible with automated SMT assembly and space-constrained PCB layouts. |
Pinout & Package
Package: 16-lead narrow plastic SSOP (GN), 5.3mm × 6.2mm body, 0.65mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH7/COM (Pins 1–8) | Analog input multiplexer terminals | Supports 8 single-ended inputs, 4 differential pairs, or 7 single-ended + common (CH7/COM), enabling flexible sensor interfacing without external mux ICs. |
| REFCOMP (Pin 9) | 2.5V reference buffer output | Provides stable 2.5V for ADC reference; requires 10µF + 0.1µF bypass for optimal noise performance and stability. |
| VREF (Pin 10) | 1.25V internal reference output / external reference input | Factory-trimmed 1.25V bandgap source; can be overdriven by external reference for improved accuracy or drift performance. |
| CS/CONV (Pin 11) | Conversion start / serial frame enable | Rising edge initiates conversion; falling edge enables serial data output - simplifies timing-critical host MCU firmware. |
| SCK (Pin 12) | Serial clock input | Accepts up to 20MHz clock; supports both rising- and falling-edge capture for flexible SPI/MICROWIRE controller compatibility. |
| SDO (Pin 13) | Digital data output | Outputs 12-bit result in straight binary (unipolar) or two's complement (bipolar); tri-state when CS/CONV high. |
| SDI (Pin 14) | Digital configuration input | Accepts 7-bit control word to configure channel, polarity, input mode, and sleep bit before next conversion. |
| GND (Pin 15) | Analog and digital ground | Single ground plane required; separation not needed due to internal isolation design - reduces layout complexity. |
| VDD (Pin 16) | Power supply input | 2.7V to 3.6V operation; bypass with 10µF + 0.1µF capacitor - supports direct connection to Li-ion or 3.3V LDO outputs. |
Key Features
| Feature | Design Value |
|---|---|
| Configurable 8-channel analog multiplexer | Enables dynamic reconfiguration between single-ended and differential modes per conversion via 7-bit SDI word - eliminates hardware redesign for multi-sensor platforms. |
| Automatic nap mode between conversions | Reduces average current from 750µA to 170µA without software intervention - extends battery life in portable DAQ systems by >2× vs continuous sampling. |
| True differential input capability | Rejects common-mode noise up to 112dB (100kHz), allowing accurate measurement of small signals in electrically noisy industrial environments. |
| On-chip 1.25V reference with ±20ppm/°C tempco | Eliminates external reference component count and associated board area while maintaining <0.05% full-scale drift over 0°C–70°C. |
| SPI/MICROWIRE-compatible serial interface | Uses only three digital lines (CS/CONV, SCK, SDO/SDI) - minimizes GPIO usage on resource-constrained microcontrollers and reduces routing congestion. |
Applications
| Industrial Process Control | High-Speed Data Acquisition |
|---|---|
|
Use Scenario: Monitoring temperature, pressure, and flow sensors in PLC I/O modules with tight power budgets. IC Role / Device Role / Timing Role: 12-bit ADC digitizing 8 analog sensor channels at 175ksps with internal reference and automatic nap mode. Use Value: Eliminates external reference and mux ICs, reducing BOM cost by $0.85/unit and PCB area by 22 mm² while maintaining ±0.024% linearity. |
Use Scenario: Capturing transient waveforms from vibration sensors in predictive maintenance edge devices. IC Role / Device Role / Timing Role: High-throughput SAR ADC acquiring 175k samples/sec with 3.2µs conversion time and 2.01µs acquisition window. Use Value: Enables Nyquist-compliant analysis of mechanical resonance up to 87.5kHz using only 2.7V supply and 750µA current - no boost converter required. |
| Battery-Operated Systems | Multiplexed Data Acquisition Systems |
|
Use Scenario: Long-life environmental sensor nodes powered by CR2032 coin cells deployed in remote locations. IC Role / Device Role / Timing Role: Micropower ADC entering 0.2µA sleep mode between triggered measurements, waking via CS/CONV pulse. Use Value: Achieves >5-year battery life at one 12-bit reading per minute - validated by 750µA active / 0.2µA sleep current specs and 80ms wake-up time. |
Use Scenario: Modular test equipment requiring flexible signal routing across multiple sensor types (thermocouples, RTDs, strain gauges). IC Role / Device Role / Timing Role: Reconfigurable 8-channel MUX supporting mixed single-ended and differential inputs per conversion cycle. Use Value: Enables single-hardware platform to support 4 distinct sensor interfaces without manual jumpering or firmware recompilation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit, multiplexed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 12-bit, 200ksps, 2.7V–5.25V supply, no internal reference, SO-8 package | Requires external reference and level-shifting for 2.7V systems; lacks differential input support and nap mode | Select when higher sample rate (200ksps) is mandatory and external reference is already present in system. |
| MAX11131ETE+ | 12-bit, 500ksps, internal 2.048V reference, 10-pin µMAX, 2.7V–3.6V supply | Higher speed but only 4-channel MUX; no CH7/COM common-mode flexibility; smaller package limits thermal dissipation | Select when board space is critical and 4-channel count suffices; avoid if 8-channel differential routing is required. |
Compared with ADS7822U and MAX11131ETE+, the LTC1863LCGN#PBF uniquely combines 8-channel configurability, true differential inputs, internal 1.25V reference, and sub-µA sleep mode in a standard SSOP - making it optimal for compact, battery-powered industrial DAQ where channel density and power efficiency are co-primary constraints.
Availability
LTC1863LCGN#PBF is available at Aetrix Electronics and suitable for industrial process control, battery-operated sensor nodes, and multiplexed data acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LTC1863LCGN#PBF 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. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC1863LCGN#PBF belongs to the LTC® micropower ADC product line, designed specifically for space- and energy-constrained applications demanding high resolution, flexible input configuration, and robust operation across extended temperature ranges.
FAQ
What is the maximum sampling rate supported by the LTC1863LCGN#PBF?
The LTC1863LCGN#PBF supports a guaranteed maximum sampling rate of 175ksps across its full operating temperature range (0°C to 70°C). This is achieved with a typical conversion time of 3.2µs and acquisition time of 2.01µs. The internal clock is factory trimmed to maintain timing accuracy without external components, and the specification is tested under VDD = 2.7V and fSCK = 20MHz conditions per the official Analog Devices datasheet Rev F.
Does the LTC1863LCGN#PBF support true differential input configurations?
Yes, the LTC1863LCGN#PBF supports true differential inputs across all eight channels via its configurable analog multiplexer. When configured with SD = 0 (differential mode), it accepts paired inputs such as CH0/CH1, CH2/CH3, CH4/CH5, and CH6/CH7 - with common-mode rejection of –112dB at 100kHz. The CH7/COM pin can serve as the common negative input, and the 7-bit SDI control word allows dynamic switching between differential and single-ended modes per conversion cycle.
Can the LTC1863LCGN#PBF operate without an external reference?
Yes, the LTC1863LCGN#PBF includes a factory-trimmed, temperature-compensated 1.25V internal reference connected to VREF (Pin 10), which is amplified to 2.5V at REFCOMP (Pin 9). This eliminates the need for an external reference in most applications. The internal reference exhibits ±15mV initial accuracy and ±20ppm/°C tempco - sufficient for 12-bit precision over 0°C to 70°C. External references may be applied to VREF only if improved accuracy or lower drift is required.
What power-saving modes does the LTC1863LCGN#PBF provide?
The LTC1863LCGN#PBF provides two autonomous power-saving modes: automatic nap mode (170µA typical) activated when CS/CONV remains high after conversion completion, and explicit sleep mode (0.2µA) entered by setting the SLP bit in the 7-bit SDI configuration word. Wake-up from sleep requires 80ms stabilization time (t7), during which REFCOMP and VREF settle. These modes are fully documented in the datasheet Rev F timing table and enable multi-year operation in battery-powered systems.
Is the LTC1863LCGN#PBF pin-compatible with other members of the LTC1863/LTC1867 family?
Yes, the LTC1863LCGN#PBF is pin-compatible with the LTC1863LIGN#PBF (–40°C to 85°C), LTC1867LCGN#PBF (16-bit version), and LTC1867LIGN#PBF, as confirmed in the "ORDER INFORMATION" section of the datasheet Rev F. All share identical 16-pin narrow SSOP (GN) footprint, pin functions, and interface protocol - enabling drop-in upgrades to higher resolution or extended temperature grades without PCB revision.
LTC1863LCGN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 175k
- 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:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1863LCGN#PBF FAQ
1.How can I place an order for LTC1863LCGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1863LCGN#PBF 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 LTC1863LCGN#PBF reliable?
The price and inventory of LTC1863LCGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1863LCGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC1863LCGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1863LCGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1863LCGN#PBF?
LTC1863LCGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1863LCGN#PBF 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 LTC1863LCGN#PBF?
For technical support, including LTC1863LCGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1863LCGN#PBF requirements.
6.How does Aetrix verify that LTC1863LCGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1863LCGN#PBF 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 LTC1863LCGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC1863LCGN#PBF?
All LTC1863LCGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1863LCGN#PBF, 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 LTC1863LCGN#PBF part is unused and in its original packaging.
Return procedure for LTC1863LCGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1863LCGN#PBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
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…
