My Inquiry
My Account
Analog Devices Inc. LTC2488IDE#TRPBF
- Part No.:
- LTC2488IDE#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 14-WFDFN Exposed Pad
- Datasheet:
-
LTC2488IDE#TRPBF.pdf
- Description:
- IC ADC 16BIT SIGMA-DELTA 14DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,419
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2488IDE#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 4-channel (2-differential) delta-sigma ADC with Easy Drive input current cancellation, 2 ppm INL, 1 ppm offset error, and simultaneous 50 Hz/60 Hz rejection - designed for direct digitization of high-impedance sensors in industrial process control and precision instrumentation.
For engineers reviewing the LTC2488IDE#TRPBF datasheet, LTC2488IDE#TRPBF pinout, LTC2488IDE#TRPBF application, or LTC2488IDE#TRPBF equivalent, key selection considerations include rail-to-rail input common-mode range (GND to VCC), no-latency digital filter settling, integrated oscillator, 0.6 µVRMS noise, and differential input current cancellation enabling direct sensor interface without external buffers.
Technical Context
The LTC2488IDE#TRPBF implements a 3rd-order delta-sigma modulator with decimating FIR filtering and automatic per-conversion offset/full-scale calibration. Its patented Easy Drive sampling network cancels differential input current, eliminating dynamic errors from source impedance up to 100 kΩ while maintaining DC accuracy.
It supports both internal (307.2 kHz) and external oscillator modes, delivers 24-bit serial output via 4-wire SPI-compatible interface, and achieves simultaneous 50 Hz/60 Hz rejection through adaptive digital filtering - all within a single conversion cycle with no latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full code coverage across full input range. |
| INL | 2 ppm of VREF - enables ±0.0002% linearity-critical measurements in precision sensor systems. |
| Offset Error | 1 ppm of VREF - ensures sub-microvolt baseline stability for zero-point-sensitive applications. |
| Full-Scale Error | ±32 ppm of VREF - supports high-accuracy scaling without per-unit calibration. |
| Noise | 0.6 µVRMS - corresponds to 0.02 LSB transition noise, preserving 16-bit effective resolution. |
| Input Range | –0.5×VREF to +0.5×VREF differential - supports bipolar signals with rail-to-rail common-mode (GND to VCC). |
| Power Supply | 2.7 V to 5.5 V - compatible with single-supply industrial and battery-powered systems. |
| Operating Temp | –40°C to +85°C - qualified for extended industrial temperature environments. |
Pinout & Package
Package: 14-lead (4 mm × 3 mm) plastic DFN with exposed pad (Pin 15 = GND). Requires soldering of exposed pad to PCB ground plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FO (1) | Frequency control input | Selects internal oscillator (GND) or external clock source - determines conversion rate and filter null placement. |
| SDI (2) | Serial data input | Configures next channel selection (CH0–CH3, COM) during data transfer - first conversion after change is valid. |
| SCK (3) | Bidirectional clock I/O | Master mode: outputs internal SCK (38.4 kHz); slave mode: accepts external SCK ≤4 MHz - auto-detected at power-up/CS edge. |
| CS (4) | Active-low chip select | Wakes device from sleep (LOW), initiates data I/O, and aborts transfer if raised mid-cycle - controls power state transitions. |
| SDO (5) | Three-state serial data output | Outputs 24-bit result on falling SCK edges; indicates conversion status (HIGH = in progress, LOW = complete) when CS is LOW. |
| GND (6) | Analog/digital ground | Common reference for analog inputs, reference, and digital interface - must connect to low-impedance ground plane. |
| COM (7) | Common negative input | Shared IN– for all single-ended channels - extends input common-mode range to GND – 0.3 V to VCC + 0.3 V. |
| CH0–CH3 (8–11) | Analog input channels | Programmable as single-ended (vs COM) or differential pairs - support rail-to-rail signals with zero differential input current. |
| VCC (12) | Positive supply | 2.7 V to 5.5 V operation; requires 10 µF tantalum + 0.1 µF ceramic bypass near pin for stable conversion. |
| REF+ / REF– (13–14) | Differential reference inputs | Accept 0.1 V to VCC differential voltage; common-mode range spans GND to VCC - enables flexible reference sourcing. |
Key Features
| Feature | Design Value |
|---|---|
| Easy Drive input current cancellation | Eliminates differential input current errors - enables direct connection of thermocouples, RTDs, and bridge sensors up to 100 kΩ source impedance without buffer amplifiers. |
| No-latency digital filter | Settles in one conversion cycle - eliminates traditional oversampling delay and allows immediate channel switching with guaranteed first-sample validity. |
| Simultaneous 50 Hz/60 Hz rejection | Integrated adaptive notch filtering - rejects both line frequencies without external components or configuration changes. |
| Per-conversion auto-calibration | Continuous offset and full-scale correction - maintains 1 ppm offset and 32 ppm full-scale accuracy across temperature, supply, and channel changes. |
| Rail-to-rail input common-mode range | GND to VCC independent of reference voltage - simplifies signal conditioning for sensors operating outside reference bounds. |
| Low-power sleep mode | 1 µA typical current - reduces system power by >100× when idle, ideal for battery-operated or energy-conscious designs. |
Applications
| Direct Temperature Measurement | Industrial Process Control |
|---|---|
Use Scenario: Digitizing thermocouple or RTD outputs in HVAC, furnace, or chemical reactor monitoring systems where ambient temperature varies from –40°C to +85°C. IC Role / Device Role / Timing Role: Precision 16-bit ADC with automatic cold-junction compensation support and simultaneous 50/60 Hz line rejection for noisy plant-floor environments. Use Value: Eliminates external instrumentation amplifier and line-filtering circuitry while delivering 2 ppm INL and 0.6 µVRMS noise for <0.1°C measurement resolution. | Use Scenario: Monitoring pressure, flow, and level transmitters in PLC-based control cabinets with shared 24 V DC rails and high EMI exposure. IC Role / Device Role / Timing Role: High-impedance sensor digitizer with rail-to-rail input (GND to VCC), differential input current cancellation, and robust PSRR (>120 dB). Use Value: Enables direct connection of 4–20 mA loop-powered sensors via precision shunt resistors without gain/offset drift compensation. |
| Data Acquisition System | Instrumentation |
Use Scenario: Modular DAQ modules for test benches requiring 4-channel synchronized sampling of mixed analog sources (voltage, current, resistance). IC Role / Device Role / Timing Role: Multi-channel delta-sigma ADC with programmable channel sequencing, no-latency output, and 24-bit SPI interface for microcontroller host communication. Use Value: Reduces BOM count by integrating mux, reference buffer, oscillator, and calibration logic - cuts board area and design validation effort. | Use Scenario: Portable handheld meters measuring DC voltage, resistance, and thermistor-based temperature with battery life >100 hours. IC Role / Device Role / Timing Role: Low-power 16-bit ADC with 1 µA sleep current, internal oscillator, and 2.7 V minimum supply - optimized for intermittent measurement duty cycles. Use Value: Achieves 16-bit accuracy at 0.8 mW active power and eliminates external crystal or clock generator components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS124S08IPWR | 24-bit resolution, 4-kSPS max, integrated PGA and sensor burnout detection - higher resolution but larger package (20-TSSOP) and no Easy Drive current cancellation. | Preferred for ultra-high-resolution weigh scales or medical diagnostics; less suitable for high-impedance unbuffered sensors due to input bias current. | Select ADS124S08IPWR when 24-bit resolution and onboard PGA outweigh need for zero-differential-input-current operation. |
| MAX11206ETL+ | 24-bit, 10 SPS, internal reference, 1.8 V to 3.6 V supply only - lacks simultaneous 50/60 Hz rejection and rail-to-rail input common-mode range. | Better suited for low-voltage portable devices; incompatible with 5 V industrial systems or wide common-mode sensor interfaces. | Choose MAX11206ETL+ for battery-powered, low-voltage, low-data-rate applications where integrated reference simplifies design. |
Compared with ADS124S08IPWR and MAX11206ETL+, the LTC2488IDE#TRPBF uniquely combines 16-bit precision, zero-differential-input-current operation, simultaneous 50/60 Hz rejection, and rail-to-rail input common-mode range in a compact 4 mm × 3 mm DFN - making it optimal for industrial sensor digitization where external buffering must be avoided.
Availability
LTC2488IDE#TRPBF is available at Aetrix Electronics and suitable for industrial process control, precision instrumentation, data acquisition systems, and direct temperature measurement requiring stable component supply across extended temperature ranges.
Supply support for LTC2488IDE#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, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC2488IDE#TRPBF belongs to Linear's No Latency ΔΣ ADC product line, engineered specifically for high-accuracy, low-power, multi-channel sensor digitization in harsh industrial and instrumentation environments.
FAQ
What is the operating temperature range for the LTC2488IDE#TRPBF?
The LTC2488IDE#TRPBF is rated for –40°C to +85°C operation, qualifying it for extended industrial environments. This is confirmed in the Absolute Maximum Ratings table and applies across all specified electrical characteristics including INL, offset error, and full-scale error - ensuring consistent 16-bit performance without derating.
Does the LTC2488IDE#TRPBF require an external reference voltage?
No, the LTC2488IDE#TRPBF accepts a fully differential external reference (REF+ and REF–), but it does not require one: REF+ may be tied to VCC and REF– to GND for simplest operation. The reference voltage range is 0.1 V to VCC, and the device maintains 2 ppm INL and 1 ppm offset error across this range when used within datasheet conditions.
How does Easy Drive technology work in the LTC2488IDE#TRPBF?
Easy Drive in the LTC2488IDE#TRPBF uses a patented passive sampling network that automatically cancels differential input current - eliminating dynamic errors from source impedances up to 100 kΩ. This allows rail-to-rail input signals and high-impedance sensors (e.g., thermocouples, RTDs) to connect directly without external op-amps, while preserving DC accuracy and 0.6 µVRMS noise performance.
Can the LTC2488IDE#TRPBF reject both 50 Hz and 60 Hz interference simultaneously?
Yes, the LTC2488IDE#TRPBF provides simultaneous 50 Hz and 60 Hz rejection via its integrated digital filter - achieving ≥87 dB normal-mode rejection at both frequencies without external components or configuration. This is verified in the Converter Characteristics table under "Input Normal Mode Rejection 50Hz/60Hz ±2%" and applies across the full –40°C to +85°C temperature range.
What is the power consumption of the LTC2488IDE#TRPBF in active and sleep modes?
The LTC2488IDE#TRPBF draws 160 µA typical conversion current and 1 µA typical sleep current (at TA = 25°C). In sleep mode - entered automatically when CS is HIGH - power drops by over two orders of magnitude, enabling ultra-low-power operation in battery-powered or intermittently sampled systems while retaining conversion result in static shift register.
LTC2488IDE#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 6.9
- Number of Inputs:
- 2, 4
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 14-DFN (4x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2488IDE#TRPBF FAQ
1.How can I place an order for LTC2488IDE#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2488IDE#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 LTC2488IDE#TRPBF reliable?
The price and inventory of LTC2488IDE#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2488IDE#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2488IDE#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2488IDE#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2488IDE#TRPBF?
LTC2488IDE#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2488IDE#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 LTC2488IDE#TRPBF?
For technical support, including LTC2488IDE#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2488IDE#TRPBF requirements.
6.How does Aetrix verify that LTC2488IDE#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2488IDE#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 LTC2488IDE#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2488IDE#TRPBF?
All LTC2488IDE#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2488IDE#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 LTC2488IDE#TRPBF part is unused and in its original packaging.
Return procedure for LTC2488IDE#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2488IDE#TRPBF 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…
