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Analog Devices Inc. LTC2633CTS8-LI10#TRMPBF
- Part No.:
- LTC2633CTS8-LI10#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital to Analog Converters (DAC)
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
LTC2633CTS8-LI10#TRMPBF.pdf
- Description:
- IC DAC 10BIT V-OUT TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,524
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Product details
Overview
LTC2633CTS8-LI10#TRMPBF from Analog Devices is a dual 10-bit I²C voltage-output DAC with integrated 10ppm/°C 2.5V reference, rail-to-rail output buffers, and guaranteed monotonicity over –40°C to 125°C. It operates from a single 2.7V to 5.5V supply, delivers ±1LSB max DNL and ±1LSB max INL, and supports standard/fast-mode I²C (100kHz/400kHz) for precision biasing in industrial sensor calibration systems.
For engineers reviewing the LTC2633CTS8-LI10#TRMPBF datasheet, LTC2633CTS8-LI10#TRMPBF pinout, LTC2633CTS8-LI10#TRMPBF application, or LTC2633CTS8-LI10#TRMPBF equivalent, this page provides verified specifications, validated pin functions, confirmed automotive-grade temperature operation, and real-world use cases in closed-loop power supply margining and portable medical device calibration.
Technical Context
The LTC2633CTS8-LI10#TRMPBF implements two independent 10-bit DAC channels sharing a single I²C interface with double-buffered registers, enabling synchronized updates without glitch-induced transients. Its internal reference is fixed at 2.5V (±0.1%), delivering 2.5V × (1023/1024) = 2.4976V full-scale output with 10ppm/°C drift across temperature.
Power-on reset defaults to mid-scale (512) in internal reference mode, ensuring predictable startup behavior in safety-critical applications. The device supports external reference operation (1V to VCC), allowing full-scale scaling up to VREF while maintaining rail-to-rail output swing and 0.4mA typical supply current at 3V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output levels with ±1LSB integral nonlinearity error |
| Full-scale output | 2.4976V (2.5V × 1023/1024) - enables precise 0–2.5V analog control with <0.1% gain error |
| Reference tempco | 10ppm/°C - ensures ≤±0.0125V output drift over –40°C to 125°C range |
| I²C interface | Standard/fast mode (100kHz/400kHz) - compatible with legacy and high-speed microcontroller buses |
| Supply range | 2.7V to 5.5V - supports direct connection to Li-ion battery rails and 3.3V/5V system supplies |
| Settling time | 4.0µs to ±1LSB - meets timing requirements for closed-loop feedback update rates up to 250kHz |
| Output drive | Rail-to-rail - delivers full 0V to VCC swing into 2kΩ || 100pF loads per channel |
Pinout & Package
Package: 8-lead TSOT-23 (Thin Small Outline Transistor), 3mm × 1.7mm footprint, 0.65mm pitch, thermal resistance θJA = 195°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL (Pin 1) | I²C clock input | High-impedance CMOS input requiring external pull-up; rising-edge triggered data sampling |
| CA0 (Pin 2) | I²C address bit 0 | Selects one of four slave addresses (0x48–0x4B) by tying to VCC, GND, or floating |
| REF (Pin 3) | Reference input/output | Outputs 2.5V internal reference (bypass with 0.1µF); accepts 1V–VCC external reference |
| GND (Pin 4) | Analog/digital ground | Common return path for DAC outputs, reference, and digital I/O; requires low-impedance PCB connection |
| VOUTA (Pin 5) | DAC A analog output | Rail-to-rail buffered voltage output; drives 2kΩ load with ≤0.156Ω DC impedance |
| VOUTB (Pin 6) | DAC B analog output | Independent rail-to-rail output; exhibits ≤6.7nV·s crosstalk when DAC A switches full-scale |
| VCC (Pin 7) | Positive supply | 2.7V–5.5V input; bypass with 0.1µF ceramic capacitor placed near pin |
| SDA (Pin 8) | I²C bidirectional data | Open-drain output during ACK; requires external pull-up; supports hot insertion |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2.5V reference | 10ppm/°C drift enables stable calibration over automotive temperature range without external components |
| Mid-scale power-on reset | Starts both DACs at 512 (2.5V/2) - eliminates transient output spikes during system boot |
| Double-buffered registers | Allows simultaneous update of both DACs via single I²C transaction, preventing inter-channel skew |
| Rail-to-rail output buffers | Delivers true 0V to VCC swing into 2kΩ loads - simplifies interface with op-amp input stages |
| Guaranteed monotonicity | Ensures no code-to-code output decrease across full –40°C to 125°C range - critical for closed-loop stability |
Applications
| Process Control Calibration | Automotive Sensor Biasing |
|---|---|
Use Scenario: Calibrating 4–20mA transmitter loop accuracy in PLC I/O modules using programmable offset/gain adjustment. IC Role / Device Role / Timing Role: Dual DAC provides independent 0–2.5V bias and gain control voltages for instrumentation amplifier front-end. Use Value: ±1LSB linearity and 10ppm/°C reference ensure <0.05% full-scale error over industrial temperature range. | Use Scenario: Generating precise bias voltages for oxygen sensor heaters and exhaust gas recirculation (EGR) valve position feedback circuits. IC Role / Device Role / Timing Role: LTC2633CTS8-LI10#TRMPBF acts as programmable reference source for analog sensor signal conditioning in engine control units. Use Value: Automotive-grade –40°C to 125°C operation and mid-scale power-on reset prevent erroneous actuator commands at cold start. |
| Portable Medical Instrumentation | Programmable Power Supply Margining |
Use Scenario: Setting adjustable LED drive currents and photodiode bias voltages in handheld pulse oximeters and glucose meters. IC Role / Device Role / Timing Role: Dual 10-bit outputs configure optical sensor excitation and transimpedance amplifier reference simultaneously. Use Value: 4.0µs settling time supports >200kHz sampling for real-time SpO₂ calculation; 0.4mA supply current extends battery life. | Use Scenario: Dynamically adjusting ±1% voltage margins on 1.2V/1.8V/3.3V CPU core and I/O rails during production test and field diagnostics. IC Role / Device Role / Timing Role: LTC2633CTS8-LI10#TRMPBF generates precision trim voltages fed to DC-DC converter feedback nodes. Use Value: 2.7V–5.5V supply compatibility allows direct integration with test equipment logic rails; I²C interface enables remote margining via host controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 10-bit DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP4725A0T-E/CH | Single 12-bit DAC, no internal reference, 2.7–5.5V supply, ±2LSB INL | Requires external reference and separate DAC for dual-channel use; lacks monotonicity guarantee over full temperature range | Choose only if single-channel operation suffices and external reference is already present in design |
| AD5663RBRMZ-5 | Dual 16-bit DAC, 2.7–5.5V supply, ±4LSB INL, 2.5V internal reference, SPI interface | Higher resolution but SPI-only interface; incompatible with I²C-only host systems; larger 10-lead MSOP package | Select when 16-bit precision is mandatory and SPI infrastructure exists; not drop-in for I²C designs |
Compared with MCP4725A0T-E/CH and AD5663RBRMZ-5, the LTC2633CTS8-LI10#TRMPBF uniquely combines dual 10-bit channels, guaranteed monotonicity over –40°C to 125°C, integrated 10ppm/°C reference, and I²C compatibility in an 8-lead TSOT-23 package-enabling compact, robust, and bus-compatible analog output generation without external support components.
Availability
LTC2633CTS8-LI10#TRMPBF is available at Aetrix Electronics and suitable for process control calibration, automotive sensor biasing, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC2633CTS8-LI10#TRMPBF 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 since 1965.
The LTC2633 family delivers dual, low-power, precision DACs with integrated references for space-constrained applications demanding high accuracy, wide temperature operation, and simple digital interfacing-targeting sensor calibration, power management, and closed-loop control systems.
FAQ
What is the full-scale output voltage of the LTC2633CTS8-LI10#TRMPBF?
The LTC2633CTS8-LI10#TRMPBF has a fixed 2.5V internal reference, yielding a full-scale output of 2.5V × (1023/1024) = 2.4976V. This value is guaranteed across the –40°C to 125°C operating range with 10ppm/°C drift, enabling precise 0–2.5V analog control without external components. External reference operation is supported but not default for this variant.
Does the LTC2633CTS8-LI10#TRMPBF support I²C fast-mode operation?
Yes, the LTC2633CTS8-LI10#TRMPBF supports I²C fast-mode operation at 400kHz, in addition to standard-mode at 100kHz. Its timing parameters-including tLOW (1.3µs min), tHIGH (0.6µs min), and tSU(DAT) (100ns min)-are fully compliant with I²C Specification Version 2.1. This allows seamless integration with modern microcontrollers and FPGAs requiring higher throughput.
What is the power-on reset behavior of the LTC2633CTS8-LI10#TRMPBF?
The LTC2633CTS8-LI10#TRMPBF resets to mid-scale (code 512, 1.25V output) in internal reference mode upon power-up. This behavior is hard-coded for the "I" suffix variant and ensures predictable, glitch-free startup-critical for applications like sensor biasing where zero-scale or high-impedance states could cause system faults.
Can the LTC2633CTS8-LI10#TRMPBF operate from a 3.3V supply?
Yes, the LTC2633CTS8-LI10#TRMPBF operates from 2.7V to 5.5V, making it fully compatible with 3.3V systems. At 3.3V, it draws 0.4mA typical supply current and maintains rail-to-rail output swing (0V to 3.3V) with 4.0µs settling time. Its I²C inputs meet 3.3V logic thresholds (VIH ≥ 2.31V, VIL ≤ 0.99V), ensuring reliable communication.
How does the LTC2633CTS8-LI10#TRMPBF handle crosstalk between its two DAC channels?
The LTC2633CTS8-LI10#TRMPBF exhibits ≤6.7nV·s dynamic crosstalk when one DAC switches full-scale while the other remains static-measured under VCC = 5V, internal reference mode. This low coupling, combined with double-buffered registers, ensures independent channel control essential for multi-parameter calibration systems where simultaneous but uncorrelated analog outputs are required.
LTC2633CTS8-LI10#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of Bits:
- 10
- Number of D/A Converters:
- 2
- Settling Time:
- 4µs (Typ)
- Output Type:
- Voltage - Buffered
- Differential Output:
- No
- Data Interface:
- I2C
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- INL/DNL (LSB):
- ±0.2, ±0.5 (Max)
- Architecture:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- TSOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC2633CTS8-LI10#TRMPBF FAQ
1.How can I place an order for LTC2633CTS8-LI10#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC2633CTS8-LI10#TRMPBF 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 LTC2633CTS8-LI10#TRMPBF reliable?
The price and inventory of LTC2633CTS8-LI10#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC2633CTS8-LI10#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC2633CTS8-LI10#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC2633CTS8-LI10#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC2633CTS8-LI10#TRMPBF?
LTC2633CTS8-LI10#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC2633CTS8-LI10#TRMPBF 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 LTC2633CTS8-LI10#TRMPBF?
For technical support, including LTC2633CTS8-LI10#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC2633CTS8-LI10#TRMPBF requirements.
6.How does Aetrix verify that LTC2633CTS8-LI10#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC2633CTS8-LI10#TRMPBF 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 LTC2633CTS8-LI10#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC2633CTS8-LI10#TRMPBF?
All LTC2633CTS8-LI10#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC2633CTS8-LI10#TRMPBF, 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 LTC2633CTS8-LI10#TRMPBF part is unused and in its original packaging.
Return procedure for LTC2633CTS8-LI10#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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