My Inquiry
My Account
Analog Devices Inc. LTC1867IGN#PBF
- Part No.:
- LTC1867IGN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
LTC1867IGN#PBF.pdf
- Description:
- IC ADC 16BIT SAR 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:136
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1867IGN#PBF from Analog Devices is a 16-bit, 8-channel, 200ksps successive approximation ADC with integrated 2.5V reference, SPI/MICROWIRE serial interface, and configurable single-ended/differential input multiplexer. It delivers ±2LSB max INL, 89dB SNR (with internal reference), and operates from a single 5V supply at 1.3mA typical current. It is used in high-precision industrial data acquisition systems requiring low power and temperature-stable DC performance.
For engineers reviewing the LTC1867IGN#PBF datasheet, LTC1867IGN#PBF pinout, LTC1867IGN#PBF application, or LTC1867IGN#PBF equivalent, key selection criteria include guaranteed 16-bit no-missing-codes operation over –40°C to +85°C, automatic nap/sleep modes for battery-sensitive designs, and flexible analog input configuration supporting unipolar/bipolar and single-ended/differential modes across eight channels.
Technical Context
The LTC1867IGN#PBF implements a capacitive successive approximation register (SAR) architecture with differential 16-bit DAC and low-power comparator. Its internal 2.5V bandgap reference is factory-trimmed and buffered to 4.096V at REFCOMP, enabling precise unipolar (0–4.096V) or bipolar (±2.048V) full-scale ranges.
Conversion is initiated by a rising edge on CS/CONV; acquisition time is 1.5µs (min), conversion time is 3.5µs (max), and serial output follows SPI timing with SDO valid on SCK falling edge. The 7-bit configuration word controls channel selection, input mode (SD, OS, COM), polarity (UNI), and sleep enable (SLP).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonicity and no missing codes over full temperature range (–40°C to +85°C) |
| Sample Rate | 200ksps - supports real-time capture of signals up to 1.25MHz full-power bandwidth |
| INL | ±2LSB max - ensures accurate end-point linearity critical for closed-loop control and calibration |
| SNR | 89dB typical (with internal reference) - enables >14.5 effective number of bits (ENOB) for high-fidelity signal digitization |
| Supply Current | 1.3mA at 200ksps; 150µA in nap mode - allows continuous operation in power-constrained embedded systems |
| Analog Input Range | 0–4.096V (unipolar) or ±2.048V (bipolar) - matches standard industrial sensor outputs and op-amp rails |
| Reference | Internal 2.5V ±15ppm/°C tempco, buffered to 4.096V - eliminates external reference component count while maintaining drift stability |
Pinout & Package
Package: 16-pin narrow plastic SSOP (GN), 0.15mm pitch, 5.0mm × 6.2mm body size, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH6 (Pins 1–7) | Analog input channel | Single-ended inputs or positive-side differential inputs; each draws ≤±1µA leakage current |
| CH7/COM (Pin 8) | Configurable analog terminal | Functions as eighth channel (CH7) or common-mode reference (COM) for differential pairs when COM bit = 1 |
| REFCOMP (Pin 9) | Reference buffer output | Provides 4.096V reference voltage; requires 10µF + 0.1µF bypass for optimal noise performance |
| VREF (Pin 10) | Internal reference output / external reference input | Delivers 2.5V ±0.02V; series 6kΩ resistor allows overdrive with external precision reference |
| CS/CONV (Pin 11) | Conversion start & serial frame control | Rising edge initiates conversion; low state enables serial data output on SDO |
| SCK (Pin 12) | Serial clock input | Supports up to 40MHz clock; data latched on falling edge for SDO, sampled on rising edge for SDI |
| SDO (Pin 13) | Serial data output | Outputs 16-bit result in straight binary (unipolar) or two's complement (bipolar) format |
| SDI (Pin 14) | Serial data input | Accepts 7-bit configuration word (SD, OS, S1, S0, COM, UNI, SLP) before each conversion |
| GND (Pin 15) | Analog and digital ground | Single ground plane required; separation from noisy digital traces essential for 89dB SNR |
| VDD (Pin 16) | Power supply | 4.75V–5.25V single supply; bypass with 10µF + 0.1µF capacitor adjacent to pin |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit no-missing-codes performance | Guaranteed over –40°C to +85°C, enabling reliable measurement without code gaps in safety-critical systems |
| Configurable 8-channel analog MUX | Supports mixed single-ended/differential, unipolar/bipolar inputs per conversion via 7-bit command word |
| Integrated reference with 4.096V output | Eliminates need for external reference IC or resistor divider, reducing BOM count and layout area |
| Automatic nap mode between conversions | Reduces average current to 150µA at low sample rates, extending battery life in portable instrumentation |
| SPI/MICROWIRE-compatible serial interface | Uses standard 3-wire protocol (CS/CONV, SCK, SDO/SDI) compatible with most microcontrollers and FPGAs |
| Low acquisition time (1.5µs min) | Enables fast channel switching in multiplexed systems without sacrificing settling accuracy |
Applications
| Industrial Process Monitoring | Portable Data Loggers |
|---|---|
|
Use Scenario: Continuous monitoring of 8 thermocouple, RTD, or 4–20mA loop signals in PLC I/O modules. IC Role / Device Role / Timing Role: Primary 16-bit ADC performing synchronized sampling of multiple sensor inputs with programmable gain and offset compensation. Use Value: ±2LSB INL and 89dB SNR ensure <0.01% measurement error over temperature, meeting IEC 61000-4-3 immunity requirements for factory floor deployment. |
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and pressure at 100Hz for 6 months. IC Role / Device Role / Timing Role: Low-power ADC managing duty-cycled acquisition, nap mode between samples, and SPI burst reads to MCU. Use Value: 150µA nap current and 0.2µA sleep current extend coin-cell lifetime; internal reference removes need for external voltage reference IC. |
| Multiplexed Test Equipment | Automotive Sensor Interface |
|
Use Scenario: Benchtop multichannel oscilloscope front-end acquiring 8 analog signals simultaneously with selectable input ranges. IC Role / Device Role / Timing Role: High-speed SAR ADC providing 200ksps throughput per channel with software-selectable unipolar/bipolar modes. Use Value: 1.25MHz full-power bandwidth and 3.5µs max conversion time support real-time waveform reconstruction without aliasing artifacts. |
Use Scenario: In-vehicle battery management system measuring cell voltages and temperatures across 8 cells. IC Role / Device Role / Timing Role: AEC-Q100 qualified ADC performing isolated, high-accuracy voltage measurements with built-in reference stability. Use Value: –40°C to +85°C operating range and ±15ppm/°C reference tempco meet automotive thermal cycling requirements without external calibration. |
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 |
|---|---|---|---|
| AD7682BCPZ-RL7 | 16-bit, 250ksps, SPI interface, no internal reference - requires external 2.5V reference; consumes 1.7mA at full rate | Higher speed but lacks integrated reference and nap mode - better suited for fixed-rate, reference-controlled systems | Select when higher throughput (250ksps) is mandatory and board space allows external reference; not drop-in due to different pinout and reference dependency |
| ADS8688IPWR | 16-bit, 500ksps, integrated 4.096V reference, SPI, but uses separate VIO (1.65–5.5V) and AVDD (4.75–5.25V) supplies | Higher speed and rail-to-rail input range (±10.24V) - targets wider dynamic range applications like motor control feedback | Choose when dual-supply flexibility and >200ksps are needed; pinout and power architecture differ significantly - not pin-compatible |
Compared with AD7682BCPZ-RL7 and ADS8688IPWR, the LTC1867IGN#PBF offers unique integration of precision internal reference, automatic nap mode, and unified 5V supply - simplifying design for space- and power-constrained industrial and portable systems where 200ksps suffices.
Availability
LTC1867IGN#PBF is available at Aetrix Electronics and suitable for industrial process control, portable data loggers, and multiplexed test equipment requiring stable component supply across extended temperature ranges.
Supply support for LTC1867IGN#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.
The LTC1867IGN#PBF belongs to the LTC® precision data acquisition family, designed specifically for low-power, high-accuracy multichannel measurement in space-constrained and thermally demanding environments.
FAQ
What is the operating temperature range for the LTC1867IGN#PBF?
The LTC1867IGN#PBF is rated for –40°C to +85°C, as indicated by the "I" grade suffix in its part number. This extended industrial temperature range is validated across all electrical specifications including INL, SNR, and reference stability, making it suitable for deployment in harsh environments such as factory automation and automotive under-hood applications.
Does the LTC1867IGN#PBF require an external reference?
No, the LTC1867IGN#PBF includes a factory-trimmed 2.5V internal bandgap reference with ±15ppm/°C tempco, buffered to 4.096V at REFCOMP. External reference is optional - only needed when tighter initial accuracy or lower drift than the internal reference provides is required. The VREF pin has a 6kΩ series resistor to support overdrive.
How does the nap mode function in the LTC1867IGN#PBF?
The LTC1867IGN#PBF enters automatic nap mode when CS/CONV remains high after conversion completion. In this state, the ADC maintains VREF and REFCOMP bias but powers down the SAR core and comparator, reducing supply current from 1.3mA to 150µA. Nap mode activates automatically - no configuration bit is required - and resumes full operation on the next CS/CONV rising edge.
Can the LTC1867IGN#PBF perform differential measurements?
Yes, the LTC1867IGN#PBF supports true differential measurements using any pair of channels (e.g., CH0/CH1, CH2/CH3) or CHX/CH7/COM when the COM bit is set. The 7-bit configuration word selects differential mode (SD=0), odd/even pairing (OS), and channel address. 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 LTC1867IGN#PBF?
The LTC1867IGN#PBF supports SCK frequencies up to 40MHz, as specified in the Timing Characteristics table. At 40MHz, data is captured on the falling edge of SCK (t2 ≤ 22ns), allowing efficient high-speed readout. For rising-edge capture, maximum SCK is 20MHz (t2 ≤ 25ns). The interface is fully SPI Mode 0 (CPOL=0, CPHA=0) compliant.
LTC1867IGN#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:
- 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1867IGN#PBF FAQ
1.How can I place an order for LTC1867IGN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1867IGN#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 LTC1867IGN#PBF reliable?
The price and inventory of LTC1867IGN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1867IGN#PBF is usually 5 days.
3.What payment methods are accepted for LTC1867IGN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1867IGN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1867IGN#PBF?
LTC1867IGN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1867IGN#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 LTC1867IGN#PBF?
For technical support, including LTC1867IGN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1867IGN#PBF requirements.
6.How does Aetrix verify that LTC1867IGN#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1867IGN#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 LTC1867IGN#PBF meets industry standards.
7.What is the process for return or replacement of LTC1867IGN#PBF?
All LTC1867IGN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1867IGN#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 LTC1867IGN#PBF part is unused and in its original packaging.
Return procedure for LTC1867IGN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1867IGN#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…
