My Inquiry
My Account
Analog Devices Inc. LTC1867LCGN#PBF
- Part No.:
- LTC1867LCGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1867LCGN#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:367
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1867LCGN#PBF from Analog Devices is a 16-bit, 175ksps successive-approximation ADC with integrated 1.25V reference, 8-channel analog multiplexer supporting true differential or single-ended inputs, and SPI/MICROWIRE serial interface. It delivers ±3LSB INL, 16-bit no missing codes over temperature, and operates from a 2.7V supply. It is used in high-speed industrial data acquisition systems requiring precision, low power, and channel flexibility.
For engineers reviewing the LTC1867LCGN#PBF datasheet, LTC1867LCGN#PBF pinout, LTC1867LCGN#PBF application, or LTC1867LCGN#PBF equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, confirmed automotive-grade alternatives, and supply-chain support details specific to the 0°C to 70°C commercial-grade narrow SSOP variant.
Technical Context
The LTC1867LCGN#PBF implements a capacitive SAR architecture with differential 16-bit DAC, low-power comparator rejecting common-mode noise, and internal clock factory-trimmed for 3.2µs typical conversion time. Its analog input MUX supports dynamic reconfiguration via 7-bit serial command - enabling on-the-fly selection of unipolar/bipolar, single-ended/differential, and COM-pin assignment modes.
It features automatic nap mode (170µA) between conversions and sleep mode (0.2µA), with wake-up time of 80ms after CS/CONV assertion. Reference operation supports internal 1.25V bandgap (±20ppm/°C) or external overdrive at VREF, amplified to 2.5V at REFCOMP with dedicated bypassing requirements (10µF + 0.1µF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonic transfer function and no missing codes across full temperature range. |
| Sample Rate | 175ksps - enables real-time capture of signals up to 87.5kHz (Nyquist) in high-speed process monitoring. |
| INL | ±3LSB max - ensures end-point linearity error ≤ ±0.046% FS, critical for calibrated sensor interfaces. |
| Power @ 175ksps | 750µA @ 2.7V - draws only 2.025mW, suitable for battery-powered field instruments with multi-day runtime. |
| Input Range | ±1.25V differential or 0–2.5V unipolar - matches standard industrial transducer outputs and rail-to-rail op-amp stages. |
| SNR | 83.7dB typ - resolves 13.6 effective bits, sufficient for 12-bit system-level accuracy with margin. |
| Channel Isolation | –112dB @ 100kHz - prevents crosstalk-induced measurement errors in multiplexed thermocouple or strain-gauge arrays. |
Pinout & Package
Package: 16-lead narrow plastic SSOP (GN), 0°C to 70°C operating range, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH7/COM (Pins 1–8) | Analog input channels / common-mode reference | Configurable as eight single-ended inputs, four differential pairs, or seven single-ended referenced to CH7/COM - supports mixed-signal sensor arrays without external mux. |
| REFCOMP (Pin 9) | 2.5V reference buffer output | Provides low-noise, buffered 2.5V reference for external circuitry; requires 10µF + 0.1µF bypass to GND for stability and PSRR optimization. |
| VREF (Pin 10) | 1.25V internal reference output / external reference input | Factory-trimmed 1.25V bandgap (±20ppm/°C); can be overdriven by external reference to improve accuracy and drift performance. |
| CS/CONV (Pin 11) | Conversion start / serial frame enable | Rising edge initiates conversion; falling edge enables SDO output - dual-function pin simplifies timing-critical control logic. |
| SCK (Pin 12) | Serial clock input | Accepts up to 20MHz clock; supports both rising- and falling-edge capture for flexible host MCU interface design. |
| SDO (Pin 13) | Serial data output | Outputs 16-bit result in straight binary (unipolar) or two's complement (bipolar) format - eliminates need for software sign extension. |
| SDI (Pin 14) | Serial data input | Accepts 7-bit configuration word to set channel, polarity, differential mode, and sleep bit - enables dynamic MUX reconfiguration per conversion. |
| GND (Pin 15) | Analog and digital ground | Single ground plane required; separation not recommended due to integrated analog/digital design and shared reference paths. |
| VDD (Pin 16) | 2.7V–3.6V supply | Power source for analog core, reference, and digital I/O; requires 10µF + 0.1µF bypass to minimize supply-induced noise coupling into conversion. |
Key Features
| Feature | Design Value |
|---|---|
| True differential input architecture | Rejects common-mode noise up to 112dB at 100kHz, enabling accurate measurements in electrically noisy industrial environments. |
| Automatic nap mode | Reduces current from 750µA to 170µA between conversions without software intervention - cuts average power by >75% in burst-sampling applications. |
| On-chip 1.25V reference with external overdrive capability | Eliminates external reference IC; external drive at VREF improves gain error match to ±3LSB and tempco to ±3ppm/°C when using precision external sources. |
| Configurable 8-channel MUX with COM pin | Supports 7 single-ended + 1 common, 4 differential, or mixed configurations - reduces BOM count and PCB area versus discrete mux + ADC solutions. |
| SPI/MICROWIRE-compatible serial interface | Uses standard 3-wire protocol with no additional control lines - interoperable with most microcontrollers and FPGAs without custom logic or level-shifting. |
Applications
| Industrial Process Control | High-Speed Data Acquisition |
|---|---|
Use Scenario: Monitoring pressure, temperature, and flow sensors across 8 PLC I/O channels with simultaneous sampling requirements. IC Role / Device Role / Timing Role: 16-bit ADC with true differential inputs and ±3LSB INL serves as primary digitizer for analog sensor front-end, synchronized via CS/CONV edge-triggering. Use Value: Eliminates external reference and mux ICs while maintaining 0.046% linearity - reduces calibration effort and long-term drift in closed-loop control systems. |
Use Scenario: Capturing transient waveforms from vibration sensors or motor current signatures at up to 175ksps in portable diagnostic tools. IC Role / Device Role / Timing Role: SAR ADC with 3.2µs conversion time and automatic nap mode performs burst sampling with minimal power penalty between triggers. Use Value: 750µA active current and 0.2µA sleep current enable >100-hour battery life in handheld test equipment with intermittent high-speed capture. |
| Battery-Operated Systems | Multiplexed Sensor Arrays |
Use Scenario: Remote environmental monitoring node logging temperature, humidity, and gas concentration using low-power microcontroller and Li-ion battery. IC Role / Device Role / Timing Role: Low-voltage 2.7V operation and 300µA current at 50ksps allow direct connection to battery without regulator - extends runtime. Use Value: Internal reference and integrated MUX reduce component count by ≥3 vs discrete solution - lowers bill-of-materials cost and board space by 25%. |
Use Scenario: Medical patient monitor acquiring ECG, respiration, and SpO₂ signals from multiple electrodes with channel isolation critical for signal fidelity. IC Role / Device Role / Timing Role: 8-channel MUX with –112dB crosstalk at 100kHz digitizes all physiological signals sequentially without inter-channel interference. Use Value: Differential input mode rejects 50/60Hz mains noise; ±1.25V input range matches clinical-grade instrumentation amplifier outputs directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8688IPWR | 16-bit, 500ksps, 2.5V internal reference, SPI interface, 24-QFN package | Higher speed and resolution but requires 3V supply minimum; no sleep mode below 1µA | Select for systems needing >175ksps throughput and higher SNR (91dB), accepting larger footprint and higher quiescent current. |
| MAX11131ETE+ | 16-bit, 250ksps, internal 2.048V reference, SPI, 16-TQFN | Lower INL (±1.5LSB), smaller TQFN package, but no differential input support - single-ended only | Select when board space is constrained and differential rejection is unnecessary; verify unipolar-only input compatibility with sensor outputs. |
Compared with LTC1867LCGN#PBF, ADS8688IPWR offers higher speed at the cost of increased power and package size, while MAX11131ETE+ trades differential capability for compactness and tighter INL - choice depends on whether channel isolation or miniaturization dominates the design priority.
Availability
LTC1867LCGN#PBF is available at Aetrix Electronics and suitable for industrial process control, high-speed data acquisition, and battery-operated systems requiring stable component supply, guaranteed 0°C to 70°C operation, and long-term manufacturing continuity.
Supply support for LTC1867LCGN#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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision data conversion and power management solutions.
The LTC1867LCGN#PBF belongs to the LTC® micropower SAR ADC product line, designed specifically for space-constrained, low-power industrial and portable instrumentation where precision, integration, and supply voltage flexibility are critical.
FAQ
What is the guaranteed operating temperature range for LTC1867LCGN#PBF?
The LTC1867LCGN#PBF is specified for 0°C to 70°C operation, as indicated by the "C" grade suffix in its part number and confirmed in the Absolute Maximum Ratings table. This commercial-grade variant is intended for non-automotive, indoor industrial and portable equipment applications where ambient temperatures remain within this range.
Does LTC1867LCGN#PBF support true differential input mode?
Yes, LTC1867LCGN#PBF supports true differential inputs across four channel pairs (CH0/CH1, CH2/CH3, CH4/CH5, CH6/CH7) with common-mode rejection inherent to its SAR architecture. The datasheet confirms "True Differential Inputs" under FEATURES and specifies ±1.25V differential input range with –112dB channel-to-channel isolation at 100kHz.
Can LTC1867LCGN#PBF use an external reference instead of the internal 1.25V source?
Yes, LTC1867LCGN#PBF allows external reference injection at the VREF pin (Pin 10), which overrides the internal bandgap. The internal 3kΩ series resistor enables clean overdrive; when combined with external precision reference and proper REFCOMP bypassing, gain error match improves to ±3LSB and tempco to ±3ppm/°C.
What is the minimum supply voltage required for LTC1867LCGN#PBF to operate reliably?
LTC1867LCGN#PBF is guaranteed to operate down to 2.7V, as stated in the "2.7V Guaranteed Supply Voltage" feature and POWER REQUIREMENTS table. Below this voltage, specifications including sample rate, INL, and reference accuracy are not assured - designs must maintain VDD ≥2.7V across all operating conditions.
How does the automatic nap mode function in LTC1867LCGN#PBF?
In LTC1867LCGN#PBF, automatic nap mode activates when CS/CONV remains high after conversion completion, reducing supply current from 750µA to 170µA without software command. This state persists until the next CS/CONV rising edge initiates a new conversion - optimizing average power in periodic sampling applications.
LTC1867LCGN#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:
- 16
- 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:
- 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:
- -
LTC1867LCGN#PBF FAQ
1.How can I place an order for LTC1867LCGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1867LCGN#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 LTC1867LCGN#PBF reliable?
The price and inventory of LTC1867LCGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1867LCGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC1867LCGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1867LCGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1867LCGN#PBF?
LTC1867LCGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1867LCGN#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 LTC1867LCGN#PBF?
For technical support, including LTC1867LCGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1867LCGN#PBF requirements.
6.How does Aetrix verify that LTC1867LCGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1867LCGN#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 LTC1867LCGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC1867LCGN#PBF?
All LTC1867LCGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1867LCGN#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 LTC1867LCGN#PBF part is unused and in its original packaging.
Return procedure for LTC1867LCGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1867LCGN#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…
