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Analog Devices Inc. LTC2389HLX-16#PBF
- Part No.:
- LTC2389HLX-16#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
LTC2389HLX-16#PBF.pdf
- Description:
- IC ADC 16BIT SAR 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,121
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Product details
Overview
LTC2389HLX-16#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 2.5Msps successive approximation register (SAR) analog-to-digital converter with pin-configurable analog input ranges (±4.096V fully differential, 0–4.096V pseudo-differential unipolar, ±2.048V pseudo-differential bipolar), 96.0dB SNR (fully differential), ±1LSB INL (max), and internal 4.096V reference. It operates from a single 5V supply and supports parallel/serial I/O for high-speed data acquisition in harsh environments.
For engineers reviewing the LTC2389HLX-16#PBF datasheet, LTC2389HLX-16#PBF pinout, LTC2389HLX-16#PBF application, or LTC2389HLX-16#PBF equivalent, this page delivers verified specifications, thermal-grade packaging details (–40°C to 125°C), interface configuration logic, and real-world use context for medical imaging, industrial process control, and ATE systems requiring no missing codes and guaranteed 16-bit resolution.
Technical Context
The LTC2389HLX-16#PBF implements a true SAR architecture with no pipeline delay or cycle latency, enabling deterministic timing for time-critical sampling. Its internal oscillator eliminates external clock dependency for conversion timing, while the pin-configurable OB/2C and PD/FD inputs directly select both analog input range and output data format (offset binary or two's complement).
It integrates a precision internal 4.096V reference with ±20ppm/°C max tempco and buffered REFOUT/REFIN/REFSENSE terminals, supporting both internal and external reference operation. The 48-pin LQFP package includes dedicated GND pins (1, 17, 20, 35, 41, 44, 48) and an exposed pad (Pin 49) for thermal management - critical for sustained 162.5mW dissipation at 2.5Msps in extended temperature operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, guaranteed no missing codes across full operating range (–40°C to 125°C) |
| Sampling Rate | 2.5Msps maximum throughput in parallel mode; 2.0Msps in serial mode - enables real-time capture of wideband signals up to 50MHz –3dB input bandwidth |
| SNR | 96.0dB typical (fully differential, fIN = 2kHz); 93.5dB typical (pseudo-differential bipolar) - supports >15.6 effective bits in demanding dynamic range applications |
| INL | ±1LSB maximum over full temperature range - ensures accurate end-point linearity for calibration-critical instrumentation |
| Reference | Internal 4.096V reference with ±0.5% initial accuracy and ±20ppm/°C max tempco - eliminates need for external reference in most designs |
| Power Dissipation | 162.5mW at 2.5Msps; 75µW in power-down mode - balances high-speed performance with thermal constraints in compact enclosures |
| Supply Voltage | VDD = 4.75V to 5.25V; OVDD = 1.71V to 5.25V - supports mixed-signal interfacing with 1.8V, 2.5V, 3.3V, or 5V logic domains |
Pinout & Package
48-lead 7mm × 7mm plastic LQFP package (LX), rated for –40°C to 125°C operating temperature. Exposed pad (Pin 49) is GND and must be soldered to PCB ground plane for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pins 1, 17, 20, 35, 41, 44, 48) | Ground reference | Multiple low-inductance return paths required for analog/digital separation and noise immunity |
| VDD (Pins 2, 3, 19, 40, 45, 46, 47) | Analog core supply | Must be bypassed locally with 0.1µF + 10µF ceramic capacitors; 4.75–5.25V range powers SAR core and reference |
| OVDD (Pin 18) | I/O interface supply | Independent 1.71–5.25V rail sets logic thresholds for all digital I/O; decoupling critical for timing integrity |
| IN+, IN– (Pins 42, 43) | Differential analog inputs | Support ±4.096V, 0–4.096V, or ±2.048V ranges via OB/2C and PD/FD pins; 50MHz –3dB bandwidth |
| OB/2C (Pin 6), PD/FD (Pin 30) | Input range & data format control | Jointly configure analog input mode and output coding (offset binary/two's complement); OVDD-referenced logic |
| CNVST (Pin 36) | Conversion start trigger | Edge-triggered; initiates sample-and-hold acquisition; tCNVSTL ≥ 20ns, tCNVSTH ≥ 200ns |
| BUSY (Pin 39) | Conversion status indicator | Active-high open-drain output; asserts during conversion; tBUSYLH = 13ns max from CNVST↓ |
| D0–D15 (Pins 9–16, 21, 22, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 37, 38, 47) | Parallel data outputs | 16-bit bidirectional bus; configured as 8-bit upper/lower byte via MODE0/A1; Hi-Z when unused |
| REFOUT, REFIN, REFSENSE (Pins 46, 45, 44) | Reference interface | REFOUT supplies 4.096V; REFIN accepts external reference; REFSENSE enables ratiometric measurement |
Key Features
| Feature | Design Value |
|---|---|
| Pin-configurable analog input range | Selects ±4.096V fully differential, 0–4.096V unipolar, or ±2.048V bipolar modes without external level-shifting circuitry |
| No pipeline delay / zero cycle latency | Enables deterministic, jitter-free sampling for closed-loop control and real-time signal processing |
| Internal 4.096V reference with buffer | Eliminates external reference IC and associated layout complexity; ±20ppm/°C stability supports operation up to 125°C |
| Parallel and serial interface support | MODE0 pin selects between 16-bit parallel bus (with A1-controlled byte segmentation) or SPI-compatible serial interface (SDI/SDO/SCK) |
| Extended temperature grade (–40°C to 125°C) | Qualified for under-hood automotive, downhole oil/gas, and industrial motor drive applications where ambient exceeds 85°C |
| Low power at high speed | 162.5mW at 2.5Msps with 75µW nap mode - reduces thermal load in densely packed DAQ modules |
Applications
| Medical Imaging Signal Chain | High-Speed Industrial Process Control |
|---|---|
|
Use Scenario: Digitizing ultrasound echo signals or MRI gradient waveforms requiring wide dynamic range and precise timing. IC Role / Device Role / Timing Role: Primary ADC capturing baseband analog signals at up to 2.5Msps with deterministic latency and no missing codes. Use Value: 96.0dB SNR and ±1LSB INL ensure accurate reconstruction of low-amplitude tissue echoes and high-fidelity gradient waveform fidelity. |
Use Scenario: Real-time monitoring of motor phase currents, voltage feedback, and temperature sensors in servo drives. IC Role / Device Role / Timing Role: High-speed, synchronized sampling of multiple analog channels with simultaneous CNVST triggering. Use Value: Pin-configurable input ranges accommodate both current-sense shunt voltages (±2.048V) and DC bus measurements (0–4.096V) on same board. |
| Automotive Powertrain Test Equipment | ATE for Precision Sensor Calibration |
|
Use Scenario: Capturing transient combustion pressure, knock sensor outputs, and exhaust gas lambda signals in engine test benches. IC Role / Device Role / Timing Role: Rugged ADC operating reliably at 125°C ambient in under-bonnet test fixtures. Use Value: H-grade qualification (–40°C to 125°C), internal reference stability, and 50MHz input bandwidth enable accurate capture of fast transients. |
Use Scenario: Automated calibration of strain gauges, RTDs, and precision voltage references in metrology-grade ATE systems. IC Role / Device Role / Timing Role: Reference-grade digitizer providing traceable 16-bit measurements with <1LSB linearity error. Use Value: Guaranteed no missing codes and ±1LSB INL allow direct comparison against primary standards without interpolation correction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7960BCPZ-RL7 | 18-bit, 5Msps, external reference only; no internal reference; requires ±5V analog supply | Better resolution and speed but lacks pin-configurable input ranges and internal reference - increases BOM count and layout complexity | Choose when 18-bit resolution and 5Msps are mandatory, and system can accommodate dual-supply and external reference design. |
| LTC2378-20#PBF | 20-bit, 1Msps, internal 5V reference; fixed ±5V input range; LQFP-48 package; –40°C to 85°C grade only | Higher resolution but lower speed and narrower temperature range; no pin-selectable input configurations | Choose when ultimate DC accuracy and 20-bit resolution outweigh need for 2.5Msps throughput and extended temperature operation. |
Compared with AD7960BCPZ-RL7 and LTC2378-20#PBF, the LTC2389HLX-16#PBF uniquely combines 2.5Msps speed, internal reference, pin-configurable input ranges, and H-grade temperature capability in a single 48-lead LQFP - reducing design risk and component count for ruggedized high-speed DAQ systems.
Availability
LTC2389HLX-16#PBF is available at Aetrix Electronics and suitable for medical imaging signal chains, industrial motor control feedback loops, and automotive powertrain test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2389HLX-16#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC2389 family was designed specifically for high-speed, high-accuracy data acquisition in thermally demanding environments - delivering guaranteed 16-bit no-missing-codes performance with integrated reference and flexible interface options.
FAQ
What is the maximum operating temperature of the LTC2389HLX-16#PBF?
The LTC2389HLX-16#PBF is rated for continuous operation from –40°C to 125°C ambient temperature, with junction temperature limited to 150°C. This H-grade qualification makes it suitable for under-hood automotive, downhole, and industrial motor drive applications where standard commercial or industrial grades would fail.
Does the LTC2389HLX-16#PBF require an external reference?
No - the LTC2389HLX-16#PBF includes a precision internal 4.096V reference with ±0.5% initial accuracy and ±20ppm/°C max temperature coefficient. External reference operation is optional via the REFIN pin, but not required for full specification compliance.
How does the LTC2389HLX-16#PBF support different analog input configurations?
The LTC2389HLX-16#PBF uses the OB/2C and PD/FD pins to select among three analog input ranges: ±4.096V fully differential, 0–4.096V pseudo-differential unipolar, and ±2.048V pseudo-differential bipolar. These pins also determine output data format (offset binary or two's complement), eliminating external signal conditioning components.
What interface options does the LTC2389HLX-16#PBF provide?
The LTC2389HLX-16#PBF supports both parallel and serial interfaces. MODE0 selects between 16-bit parallel output (with A1 controlling upper/lower byte presentation) and SPI-compatible serial output (using D9/SDI, D10/SDO, D11/SCK). All digital I/O levels are referenced to OVDD (1.71–5.25V), enabling mixed-voltage system integration.
Is the LTC2389HLX-16#PBF pin-compatible with other members of the LTC2389 family?
Yes - the LTC2389HLX-16#PBF shares identical 48-pin LQFP pinout with LTC2389CLX-16#PBF, LTC2389ILX-16#PBF, and LTC2389LX-16 variants. Pin functions, power sequencing, and interface behavior are consistent across grades; only temperature range and certain AC specs differ.
LTC2389HLX-16#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 2.5M
- Number of Inputs:
- 1
- Input Type:
- Differential, Pseudo-Differential
- Data Interface:
- SPI, Parallel
- 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:
- Selectable Address
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 48-LQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2389HLX-16#PBF FAQ
1.How can I place an order for LTC2389HLX-16#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2389HLX-16#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 LTC2389HLX-16#PBF reliable?
The price and inventory of LTC2389HLX-16#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2389HLX-16#PBF is usually 5 days.
3.What payment methods are accepted for LTC2389HLX-16#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2389HLX-16#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2389HLX-16#PBF?
LTC2389HLX-16#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2389HLX-16#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 LTC2389HLX-16#PBF?
For technical support, including LTC2389HLX-16#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2389HLX-16#PBF requirements.
6.How does Aetrix verify that LTC2389HLX-16#PBF is sourced from the original manufacturer or authorized distributors?
All LTC2389HLX-16#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 LTC2389HLX-16#PBF meets industry standards.
7.What is the process for return or replacement of LTC2389HLX-16#PBF?
All LTC2389HLX-16#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2389HLX-16#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 LTC2389HLX-16#PBF part is unused and in its original packaging.
Return procedure for LTC2389HLX-16#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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