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Texas Instruments DAC7513N/3K
- Part No.:
- DAC7513N/3K
- Manufacturer:
- Texas Instruments
- Category:
- Digital to Analog Converters (DAC)
- Package:
- SOT-23-8
- Datasheet:
-
DAC7513N/3K.pdf
- Description:
- IC DAC 12BIT V-OUT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:797
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Product details
Overview
DAC7513N/3K from Texas Instruments is a low-power, single-channel, 12-bit buffered voltage-output digital-to-analog converter (DAC) with rail-to-rail output swing, 10 µs settling time to 1 LSB, ±8 LSB relative accuracy, and 115 µA supply current at 5 V. It operates from +2.7 V to +5.5 V and supports SPI/QSPI/Microwire-compatible 3-wire serial interface up to 30 MHz - ideal for portable instrumentation and closed-loop servo-control systems requiring precision analog output under battery-constrained conditions.
For engineers reviewing the DAC7513N/3K datasheet, DAC7513N/3K pinout, DAC7513N/3K application, or DAC7513N/3K equivalent, key selection considerations include its SOT23-8 package footprint, power-on reset to 0 V, programmable power-down modes (200 nA), rail-to-rail output amplifier with VFB feedback pin, and external reference dependency for full-scale range control.
Technical Context
The DAC7513N/3K implements a resistor-string architecture with a 12-bit straight-binary input coding scheme and on-chip rail-to-rail output buffer amplifier. Its VFB pin provides direct feedback access for improved load accuracy or external signal conditioning.
It uses a 16-bit shift register with two control bits (PD1/PD0) enabling four operating modes: normal operation or one of three power-down states (1 kΩ to GND, 100 kΩ to GND, or high-Z). SYNC acts as a level-triggered frame synchronization signal with interrupt capability - a rising edge before the 16th SCLK falling edge aborts the write sequence.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output levels across full-scale range. |
| Relative Accuracy | ±8 LSB - ensures monotonicity and predictable transfer function error over temperature. |
| Settling Time | 10 µs to 1 LSB - enables fast updates in closed-loop control and data acquisition timing budgets. |
| Supply Current | 115 µA typical at 5 V - supports ultra-low-power portable designs; drops to 200 nA in power-down mode. |
| Output Range | Rail-to-rail (0 V to VDD) - maximizes dynamic range without external op-amp gain stages. |
| Serial Interface | 3-wire (SYNC/SCLK/DIN), SPI/QSPI/Microwire-compatible, up to 30 MHz - simplifies integration with common microcontrollers and DSPs. |
| Reference Dependency | External VREF required - allows flexible full-scale scaling and multiplying DAC operation. |
| Power-On Reset | Outputs 0 V at startup until first valid write - prevents undefined analog transients during system boot. |
Pinout & Package
The DAC7513N/3K is housed in an 8-pin SOT23 package (orderable marking D13N), with 0.65 mm pitch, JEDEC MO-178 compliant footprint, and thermal resistance θJA = 240 °C/W. Pin 1 is marked by a dot or beveled corner; device orientation follows standard SOT23 top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive power supply input | Accepts +2.7 V to +5.5 V; powers internal logic, DAC core, and output amplifier. |
| VREF | Reference voltage input | Sets full-scale output range; enables multiplying DAC operation when driven by variable source. |
| VFB | Inverting input of output amplifier | Allows Kelvin connection to load for improved accuracy or insertion of external compensation networks. |
| VOUT | Analog voltage output | Rail-to-rail buffered output capable of sourcing/sinking up to 50 mA at 5 V; stable with ≤1000 pF capacitive load. |
| SYNC | Frame synchronization input (active LOW) | Starts serial write cycle on falling edge; rising edge before 16th SCLK acts as write abort interrupt. |
| SCLK | Serial clock input | Accepts up to 30 MHz clock; data latched on falling edge; defines timing window for DIN sampling. |
| DIN | Serial data input | MSB-first 16-bit stream: bits DB15–DB14 ignored, DB13–DB12 control power-down mode, DB11–DB0 are DAC data. |
| GND | Analog/digital ground reference | Single shared ground pin; requires low-impedance connection to analog ground plane to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| MicroPOWER operation | 115 µA typical supply current at 5 V - extends battery life in portable instrumentation and sensor nodes. |
| Power-on reset to zero | Guarantees VOUT = 0 V at power-up until first valid write - eliminates uncontrolled analog transients in safety-critical systems. |
| Programmable power-down modes | Three selectable states (1 kΩ/100 kΩ to GND or high-Z) with 200 nA IDD - preserves known output impedance while minimizing standby power. |
| Rail-to-rail output amplifier | Delivers full 0 V to VDD swing into 2 kΩ || 1000 pF - avoids external amplification for most industrial and test equipment applications. |
| SYNC interrupt facility | Aborts incomplete writes via early SYNC HIGH - prevents partial register updates and ensures data integrity in noisy environments. |
| Monotonic by design | No missing codes across entire 12-bit range - essential for closed-loop control stability and calibration accuracy. |
Applications
| Process Control | Data Acquisition Systems |
|---|---|
Use Scenario: Generating precise analog setpoints for PID controllers in PLC-based industrial automation. IC Role / Device Role / Timing Role: Voltage-output DAC providing calibrated 0–5 V or 0–10 V command signals to valve actuators and motor drives. Use Value: ±8 LSB relative accuracy and rail-to-rail output ensure consistent loop response across temperature (–40°C to +105°C) without recalibration. |
Use Scenario: Converting digital sensor readings into analog waveforms for oscilloscope display or analog recording. IC Role / Device Role / Timing Role: High-fidelity waveform reconstruction DAC synchronized to ADC sampling clocks via shared microcontroller. Use Value: 10 µs settling time and low code-change glitch (20 nV·s) preserve signal fidelity in multi-channel DAQ front-ends. |
| Closed-Loop Servo-Control | Portable Instrumentation |
Use Scenario: Driving position or torque reference inputs in motor control boards for robotics and CNC systems. IC Role / Device Role / Timing Role: Real-time analog command generator interfaced to 68HC11 or ARM Cortex-M microcontrollers via SPI. Use Value: SYNC interrupt support and 30 MHz serial interface enable deterministic update timing within tight motion control loops. |
Use Scenario: Battery-powered handheld multimeters, calibrators, and field service tools requiring low-drift analog outputs. IC Role / Device Role / Timing Role: Low-power DAC generating reference voltages, attenuation control, or sensor excitation signals. Use Value: 115 µA active current and 200 nA power-down current extend operational runtime; SOT23-8 footprint saves PCB space. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit serial-input DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP4822-E/SN | 2-channel, SPI-only interface, integrated 2.048 V reference, ±2 LSB INL, 4.5 µs settling time | Better for dual-output or self-referenced systems; lacks SYNC interrupt and external VREF flexibility | Choose when board space permits dual DACs and fixed reference suffices; avoid if multiplying DAC or interrupt-safe writes are needed. |
| AD5620BRJZ-1500RL7 | Single-channel, SPI-compatible, internal 1.25 V reference, ±4 LSB INL, 10 µs settling, 10-lead SOT-23 | Higher accuracy but no VFB pin or programmable power-down; limited to unipolar 0–2.5 V output | Prefer for higher-precision unipolar applications where external reference isn't required; not suitable for bipolar or multiplying configurations. |
Compared with MCP4822-E/SN and AD5620BRJZ-1500RL7, DAC7513N/3K uniquely combines external reference support, SYNC interrupt capability, rail-to-rail output with VFB access, and three programmable power-down states - making it optimal for flexible, low-power, and safety-aware analog output designs.
Availability
DAC7513N/3K is available at Aetrix Electronics and suitable for process control, data acquisition systems, and portable instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DAC7513N/3K 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data converters and industrial-grade IC design.
The DAC7513N/3K belongs to TI's precision 12-bit serial-input DAC product line, engineered for low-power, rail-to-rail analog output in space-constrained and battery-operated applications demanding reliability across –40°C to +105°C.
FAQ
What is the maximum clock frequency supported by DAC7513N/3K?
The DAC7513N/3K supports serial clock (SCLK) frequencies up to 30 MHz when VDD is between +3.6 V and +5.5 V, and up to 20 MHz at +2.7 V to +3.6 V. This enables high-speed communication with modern microcontrollers and DSPs while maintaining reliable data capture on the falling edge of SCLK. The DAC7513N/3K timing specifications guarantee setup and hold margins across this range.
Does DAC7513N/3K have an internal reference voltage?
No, DAC7513N/3K requires an external reference voltage applied to the VREF pin to define its output full-scale range. This design enables multiplying DAC operation and flexible scaling - for example, using a 2.5 V reference yields 0–2.5 V output, while a 5 V reference gives 0–5 V. The DAC7513N/3K does not include any internal voltage reference circuitry.
How does the power-on reset function in DAC7513N/3K?
The DAC7513N/3K incorporates a dedicated power-on reset circuit that forces the DAC register to zero and holds VOUT at 0 V until the first valid 16-bit write completes. This behavior is guaranteed across the full operating temperature range (–40°C to +105°C) and prevents undefined analog output during system startup - critical for safe operation in servo and process control systems. The DAC7513N/3K maintains this state regardless of VREF presence or value.
Can DAC7513N/3K operate in bipolar output mode?
Yes, DAC7513N/3K can generate bipolar outputs (e.g., ±5 V) using an external op-amp configuration with feedback, such as the OPA703-based circuit shown in TI's SBAS157A datasheet. Since the DAC7513N/3K itself is unipolar (0 V to VDD), bipolar operation relies on external signal conditioning - the VFB pin facilitates precise Kelvin sensing for this purpose. The DAC7513N/3K datasheet provides verified schematics and equations for ±VREF output ranges.
What are the power-down current specifications for DAC7513N/3K?
In all power-down modes, DAC7513N/3K draws just 200 nA typical at +5 V and 50 nA at +3 V. These ultra-low currents are achieved by shutting down all linear circuitry while preserving DAC register contents. The device exits power-down in 2.5 µs (at +5 V) or 5 µs (at +3 V), allowing rapid resumption of analog output without reinitialization. This makes DAC7513N/3K highly suitable for duty-cycled portable instrumentation.
DAC7513N/3K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of Bits:
- 12
- Number of D/A Converters:
- 1
- Settling Time:
- 10µs
- Output Type:
- Voltage - Buffered
- Differential Output:
- No
- Data Interface:
- SPI, DSP
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- INL/DNL (LSB):
- ±8 (Max), ±1 (Max)
- Architecture:
- String DAC
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- SOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
DAC7513N/3K FAQ
1.How can I place an order for DAC7513N/3K through Aetrix?
Please submit a Request for Quotation (RFQ) for DAC7513N/3K 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 DAC7513N/3K reliable?
The price and inventory of DAC7513N/3K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DAC7513N/3K is usually 5 days.
3.What payment methods are accepted for DAC7513N/3K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DAC7513N/3K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DAC7513N/3K?
DAC7513N/3K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DAC7513N/3K 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 DAC7513N/3K?
For technical support, including DAC7513N/3K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DAC7513N/3K requirements.
6.How does Aetrix verify that DAC7513N/3K is sourced from the original manufacturer or authorized distributors?
All DAC7513N/3K 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 DAC7513N/3K meets industry standards.
7.What is the process for return or replacement of DAC7513N/3K?
All DAC7513N/3K units undergo pre-shipment inspection (PSI). If there is an issue with DAC7513N/3K, 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 DAC7513N/3K part is unused and in its original packaging.
Return procedure for DAC7513N/3K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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