My Inquiry
My Account
Analog Devices Inc. LTC2326IMS-16#TRPBF
- Part No.:
- LTC2326IMS-16#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TFSOP (0.118", 3.00mm Width)
- Datasheet:
-
LTC2326IMS-16#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 16MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,678
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC2326IMS-16#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 250ksps successive approximation register (SAR) analog-to-digital converter with pseudo-differential inputs and true bipolar ±10.24V input range. It operates from a single 5V supply, delivers 93.5dB SNR and ±1.5LSB INL (max), and integrates a low-drift 2.048V internal reference and reference buffer-making it suitable for high-voltage industrial data acquisition systems requiring wide dynamic range and DC accuracy.
For engineers reviewing the LTC2326IMS-16#TRPBF datasheet, LTC2326IMS-16#TRPBF pinout, LTC2326IMS-16#TRPBF application, or LTC2326IMS-16#TRPBF equivalent, key selection considerations include its guaranteed 16-bit no-missing-codes performance, daisy-chain SPI interface supporting 1.8V–5V I/O, internal conversion clock, nap/sleep power management (28mW typical / 300μW sleep), and operation up to 85°C.
Technical Context
The LTC2326IMS-16#TRPBF implements a charge-redistribution SAR architecture with a 16-bit CDAC and differential comparator, sampling pseudo-differential inputs (IN+, IN–) across ±2.5 × VREFBUF. Its acquisition phase uses a 45pF sampling capacitor and ~50Ω switch on-resistance, while conversion timing is fully internal-eliminating pipeline delay and cycle latency.
It features a factory-trimmed 2.048V bandgap reference (20ppm/°C max drift), buffered to 4.096V at REFBUF, enabling ±10.24V full-scale input. The SPI-compatible serial interface supports both normal mode (RDL/SDI as bus enable) and chain mode (RDL/SDI as SDI), with BUSY signaling and MSB-first 2's complement output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - guarantees monotonic transfer function and no missing codes over full temperature range. |
| Sampling Rate | 250ksps - enables real-time capture of signals up to 7MHz input bandwidth with <1µs transient response. |
| Input Range | ±10.24V true bipolar - supports direct interfacing with industrial ±10V sensor outputs without external level-shifting. |
| SNR | 93.5dB (typ) at fIN = 2kHz - ensures high-fidelity digitization for precision instrumentation and spectral analysis. |
| INL | ±1.5LSB (max) - maintains linearity critical for closed-loop control and calibration-sensitive measurement systems. |
| Power Dissipation | 28mW (typ) at 250ksps - scales with sample rate via automatic nap mode; drops to 300μW in sleep mode for intermittent use. |
| Reference | 2.048V internal bandgap (20ppm/°C max drift) + 4.096V buffered output - eliminates need for external reference in most applications. |
Pinout & Package
Package: 16-lead plastic MSOP (3mm × 4.9mm, 0.65mm pitch), rated for –40°C to +85°C operating temperature (I-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDLBYP (1) | 2.5V LDO bypass | Internally regulated supply for analog core; requires 2.2µF ceramic decoupling to GND for noise suppression. |
| VDD (2) | 5V analog supply | Main power rail (4.75–5.25V); must be decoupled with 10µF ceramic capacitor to ensure stable ADC core operation. |
| GND (3, 6, 16) | Analog/digital ground | Three dedicated ground pins minimize ground bounce and improve PSRR; all must connect to low-impedance analog ground plane. |
| IN+ (4) | Pseudo-differential analog input (+) | Accepts input from –2.5×VREFBUF to +2.5×VREFBUF; forms differential pair with IN– for common-mode rejection. |
| IN– (5) | Pseudo-differential analog input (–) | Ground-sense pin with ±500mV range; ties to remote ground or system reference to reject common-mode noise. |
| REFBUF (7) | Reference buffer output | Nominally 4.096V; supplies ADC core reference; requires 47µF ceramic decoupling; can be overdriven externally (2.5–5V). |
| REFIN (8) | Internal reference output / external reference input | 2.048V bandgap output (bypass with 100nF); accepts external reference (1.25–2.4V) to scale input range and improve accuracy. |
| CNV (9) | Convert trigger input | Rising-edge–initiated conversion start; powers up ADC and begins acquisition; logic levels referenced to OVDD. |
| CHAIN (10) | Mode selector | Low = normal SPI mode (RDL/SDI = bus enable); high = daisy-chain mode (RDL/SDI = serial data input). |
| BUSY (11) | Conversion status indicator | Active-high open-drain signal indicating conversion in progress; used for timing synchronization or interrupt generation. |
| RDL/SDI (12) | Configurable serial I/O | Function depends on CHAIN state: bus enable (low) or serial data input (high); supports multi-device daisy-chaining. |
| SCK (13) | Serial clock input | Drives SPI data transfer; supports up to 100MHz clock (10ns period); rising edge clocks out MSB-first 2's complement data. |
| SDO (14) | Serial data output | Outputs conversion result or daisy-chain data; high-impedance when disabled; compatible with 1.8V–5V host logic. |
| OVDD (15) | I/O interface supply | Digital I/O voltage rail (1.71–5.25V); sets logic thresholds for CNV, CHAIN, BUSY, RDL/SDI, SCK, SDO; bypass with 0.1µF ceramic. |
Key Features
| Feature | Design Value |
|---|---|
| True bipolar ±10.24V input range | Enables direct connection to industrial ±10V sensors and PLC analog I/O modules without external op-amp gain/level-shift circuitry. |
| No pipeline delay / zero cycle latency | Delivers first valid conversion result immediately after CNV edge-critical for deterministic real-time control loops. |
| Daisy-chain SPI interface | Allows synchronous readout of multiple LTC2326IMS-16#TRPBF devices using single SCK/SDO lines-reducing PCB routing complexity and MCU GPIO count. |
| Auto nap mode between conversions | Reduces average power proportionally to sampling rate-e.g., 10ksps operation draws ~1.1mW instead of 28mW-ideal for battery-powered DAQ. |
| Onboard 2.048V reference with 20ppm/°C max drift | Meets ATE and process control accuracy requirements without external reference components, simplifying BOM and layout. |
| Guaranteed operation to 85°C | Validated for extended industrial environments including motor drives, power inverters, and factory automation cabinets. |
Applications
| Programmable Logic Controllers | Industrial Process Control |
|---|---|
Use Scenario: Digitizing ±10V analog outputs from field transmitters (e.g., pressure, temperature, flow) in modular PLC backplanes. IC Role / Device Role / Timing Role: Primary high-accuracy ADC front-end with true bipolar input handling and deterministic 4µs conversion cycle time. Use Value: Eliminates external signal conditioning, reduces channel count per module, and maintains <±0.01% FSR accuracy across 0–85°C ambient. |
Use Scenario: High-speed monitoring of reactor temperature gradients and valve position feedback in chemical processing systems. IC Role / Device Role / Timing Role: 250ksps SAR ADC capturing transient thermal events and control loop diagnostics with no missing codes. Use Value: Enables 32k-point FFT analysis (93.5dB SNR) for spectral anomaly detection while sustaining DC stability via low-drift internal reference. |
| High Speed Data Acquisition | Portable or Compact Instrumentation |
Use Scenario: Modular DAQ cards for automated test equipment requiring synchronized multi-channel sampling at >200ksps. IC Role / Device Role / Timing Role: Precision ADC with daisy-chain capability for time-aligned sampling across 8+ channels using shared SCK. Use Value: Reduces inter-channel skew to <1ns and eliminates FPGA-based timing logic-lowering system cost and firmware complexity. |
Use Scenario: Handheld oscilloscopes and portable power analyzers needing low-power, high-SNR digitization in space-constrained enclosures. IC Role / Device Role / Timing Role: Low-power 16-bit ADC with 300μW sleep mode and integrated reference-minimizing active component count and thermal load. Use Value: Extends battery life by >5× versus discrete reference + ADC solutions while maintaining laboratory-grade 93.5dB SNR performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, true bipolar SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1MSPS, ±5V unipolar input only; requires external reference and level-shifting for ±10V signals. | Best suited for high-speed unipolar applications (e.g., motor phase current sensing); not drop-in for true bipolar sensor interfaces. | Select when sampling rate >250ksps is mandatory and input range can be limited to 0–5V or ±5V with external signal conditioning. |
| AD7606BSTZ | 16-bit, 200ksps, simultaneous sampling octal ADC; ±10V input supported but uses external reference and higher 125mW power. | Preferred for multi-channel synchronized acquisition (e.g., vibration analysis), but lacks daisy-chain SPI and auto nap mode. | Choose when 8-channel simultaneous sampling is required and board space allows larger LQFP package and additional decoupling components. |
Compared with ADS8860IDRCT and AD7606BSTZ, the LTC2326IMS-16#TRPBF uniquely combines true ±10.24V bipolar input, integrated low-drift reference, daisy-chain SPI, and sub-30mW power-making it optimal for compact, single-channel industrial DAQ where signal integrity and power efficiency are prioritized over raw speed or channel count.
Availability
LTC2326IMS-16#TRPBF is available at Aetrix Electronics and suitable for programmable logic controllers, industrial process control systems, and high-speed data acquisition requiring stable component supply, long-term lifecycle support, and guaranteed I-grade temperature performance.
Supply support for LTC2326IMS-16#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 ICs for precision measurement, power management, and connectivity.
The LTC2326IMS-16#TRPBF belongs to Linear's high-speed precision SAR ADC product line, designed specifically for industrial, test & measurement, and medical applications demanding true bipolar input, low noise, and robust operation across extended temperature ranges.
FAQ
What is the maximum operating temperature for the LTC2326IMS-16#TRPBF?
The LTC2326IMS-16#TRPBF is an I-grade device rated for continuous operation from –40°C to +85°C. This specification is guaranteed across all electrical parameters-including INL, SNR, and reference drift-as confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables. It is not rated for 125°C operation; that capability applies only to the H-grade variant (LTC2326HMS-16#TRPBF).
Does the LTC2326IMS-16#TRPBF require an external reference?
No, the LTC2326IMS-16#TRPBF does not require an external reference. It integrates a factory-trimmed 2.048V bandgap reference with ≤20ppm/°C drift and a buffered 4.096V output (REFBUF), enabling a standard ±10.24V input range. An external reference may be used at REFIN (1.25–2.4V) or REFBUF (2.5–5V) to adjust input range or improve accuracy-but it is optional, not required.
Can the LTC2326IMS-16#TRPBF interface directly with a 1.8V microcontroller?
Yes, the LTC2326IMS-16#TRPBF supports 1.8V I/O logic levels. Its OVDD supply accepts 1.71V to 5.25V, and digital pins (CNV, CHAIN, BUSY, RDL/SDI, SCK, SDO) are fully specified at 1.8V operation-including VIH = 0.8×OVDD and VOL = 0.2V. No level-shifting circuitry is needed when interfacing with 1.8V MCUs, provided OVDD is set to 1.8V and appropriate decoupling is applied.
How does the nap mode reduce power consumption in the LTC2326IMS-16#TRPBF?
The LTC2326IMS-16#TRPBF automatically enters nap mode between conversions, reducing supply current from 11.5mA (active) to 0.1mA (nap) at 250ksps-cutting dynamic power by >90%. Power scales linearly with sampling rate: at 10ksps, nap current dominates, yielding ~1.1mW total dissipation. This behavior is automatic and requires no software control, unlike sleep mode (300μW), which must be explicitly enabled.
Is the LTC2326IMS-16#TRPBF pin-compatible with other devices in the LTC2326 family?
Yes, all variants of the LTC2326 family-including LTC2326CMS-16#TRPBF (C-grade), LTC2326IMS-16#TRPBF (I-grade), and LTC2326HMS-16#TRPBF (H-grade)-share identical 16-lead MSOP pinouts, electrical interfaces, and functional behavior. Only the guaranteed temperature range and certain AC specifications (e.g., THD drift) differ between grades; PCB layout and firmware are fully interchangeable across the family.
LTC2326IMS-16#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TFSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential
- Data Interface:
- SPI
- Configuration:
- 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:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2326IMS-16#TRPBF FAQ
1.How can I place an order for LTC2326IMS-16#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2326IMS-16#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 LTC2326IMS-16#TRPBF reliable?
The price and inventory of LTC2326IMS-16#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2326IMS-16#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC2326IMS-16#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2326IMS-16#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2326IMS-16#TRPBF?
LTC2326IMS-16#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2326IMS-16#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 LTC2326IMS-16#TRPBF?
For technical support, including LTC2326IMS-16#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2326IMS-16#TRPBF requirements.
6.How does Aetrix verify that LTC2326IMS-16#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC2326IMS-16#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 LTC2326IMS-16#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC2326IMS-16#TRPBF?
All LTC2326IMS-16#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2326IMS-16#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 LTC2326IMS-16#TRPBF part is unused and in its original packaging.
Return procedure for LTC2326IMS-16#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC2326IMS-16#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…
