TLV1572CD - 10-Bit 1.25 MSPS SAR ADC | Texas Instruments
MPN: TLV1572CD ✓ פעילTLV1572CD סקירה
An ADC converts a continuously varying analog voltage into a numeric value suitable for processing by a microcontroller, digital signal processor, programmable logic, or industrial controller. The TLV1572 belongs to the successive-approximation ADC, or SAR ADC, category within the broader analog-to-digital converter and data-converter hierarchy. This architecture is appropriate when an application needs compact conversion hardware, a moderate sampling rate, low power consumption, and a straightforward digital interface rather than the throughput of a pipeline ADC.
The TLV1572 combines a 10-bit conversion resolution with a maximum throughput of 1.25 million samples per second. Its single 2.7 V to 5.5 V operating range allows operation from standard low-voltage and 5 V supply systems. Automatic power-down is particularly useful in intermittently sampled instruments because the converter can enter a low-current state between measurements. The available manufacturer information also identifies the device as a serial ADC with a very low-power operating mode.
The serial interface reduces the number of signals required to transfer conversion results, helping conserve board area and connector pins. Digital data must still be clocked and framed correctly, so the host controller must match the converter's serial timing and logic levels. Because the ADC accepts a 0 V to VCC input range, signal conditioning is generally required when the source can be bipolar, noisy, slow-moving, or outside the converter's supply-referenced input limits.
Typical uses include industrial process measurement, low-rate audio or vibration monitoring, battery-powered instruments, temperature-sensor acquisition, communications equipment, and compact embedded control systems. Selection should consider the required sampling rate, input bandwidth, noise performance, reference arrangement, power budget, and required conversion latency rather than resolution alone.
A critical design consideration is to keep the analog input and reference network within the operating limits specified by the manufacturer. The input signal should be sampled through a suitable source impedance, and the PCB should minimize noise coupling into the sensitive analog node. Because detailed pin assignments, reference requirements, timing limits, and layout recommendations are not included in the supplied verified snippets, engineers should confirm them against the manufacturer datasheet before releasing a PCB.
This product page consolidates the verified manufacturer and distributor information, distinguishes the converter's verified capabilities from unresolved datasheet details, and provides application-oriented design guidance without inventing unavailable pricing, pinout, or cross-reference information.
חלופות תחליף ישיר עבור TLV1572CD — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
אין חלופות תואמות Drop-in עבור מוצר זה.
בקשת חלופותTLV1572CD דירוגים מרביים ומאפיינים חשמליים
| ADC Type | Successive-approximation register (SAR) ADC |
| רזולוציה | 10 bit |
| Number of Channels | 1 channel |
| Maximum Sampling Rate | 1.25 MSPS |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Analog Input Range | 0 V to VCC |
| Power Dissipation at 3 V | 8 mW |
| Power Dissipation at 5 V | 25 mW |
| Auto Power-Down Current | 10 μA when no conversion is performed |
| מארז | 8-pin SOIC |
| סוג הרכבה | Surface mount |
| סוג ממשק | Serial interface |
| Input Type | Single-ended |
| Differential Nonlinearity | ±1 LSB |
| Integral Nonlinearity | ±1 LSB |
| Signal-to-Noise and Distortion Ratio | 59 dB |
מדריך תצורת פינים של TLV1572CD 8-pin soic
תצורת פינים עבור TLV1572CD (מארזת 8-pin soic). רכיב אנלוגי זה כולל פיני כניסה, יציאה ואספקת מתח. יש לעיין בגיליון הנתונים של היצרן לתצורות פיני איפוס היסט, פיצוי והפעלה. אידיאלי למעגלי עיצוב אותות ומגברים.
אין נתוני פריסת פינים מפורטים עבור TLV1572CD.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
TLV1572CD מתאים עבור 6 יישוםs: Industrial Process Measurement, Battery-Powered Sensor Acquisition, Temperature and Thermocouple Monitoring, Vibration and Condition Monitoring, Communications and Data Acquisition, Low-Power Audio Level Measurement.
Industrial Process Measurement
The TLV1572CD fits industrial acquisition modules that sample slowly varying process-control signals at moderate speed. Its 10-bit resolution provides 1,024 digital codes, while the 1.25 MSPS maximum rate offers additional timing margin for multiplexed or multi-parameter measurements. The 2.7 V to 5.5 V supply range supports common embedded supply levels, and the 8-pin SOIC package simplifies assembly. The front end should include suitable input protection, buffering, and filtering because the ADC accepts only a 0 V to VCC range.
Battery-Powered Sensor Acquisition
The TLV1572CD is appropriate for duty-cycled sensor acquisition where the converter can sleep between measurements. According to the Texas Instruments manufacturer guide, automatic power-down reduces current to 10 μA whenever a conversion is not performed, while active power dissipation is 8 mW with a 3 V supply. This makes the device useful in compact instrumentation operating from 2.7 V to 5.5 V sources. The power budget must also include the sensor, voltage reference, interface, and leakage outside the ADC.
Temperature and Thermocouple Monitoring
The TLV1572CD can digitize conditioned temperature signals in a monitoring controller, using its 1.25 MSPS capability when the system requires rapid updates rather than slow equilibrium measurements. The 10-bit result provides 1,024 codes, which is often suitable for coarse monitoring and control loops when combined with calibration. Because the input must remain from 0 V to VCC, thermocouple or RTD circuitry requires the appropriate offset, gain, linearization, protection, and noise filtering ahead of the ADC.
Vibration and Condition Monitoring
The TLV1572CD is suitable for compact vibration-monitoring front ends that sample a rectified or conditioned accelerometer signal. Its maximum 1.25 MSPS throughput supports acquisition of higher-frequency content than a slow low-rate converter, while the 10-bit resolution establishes a practical baseline for moderate dynamic-range measurements. A practical design must account for the analog bandwidth of the sensor, anti-alias filtering, input range, and MCU storage rate. The converter's auto power-down behavior can also reduce consumption between monitoring bursts.
Communications and Data Acquisition
The TLV1572CD can serve as a compact front end for communications equipment or general-purpose data-acquisition boards that need periodic analog measurements. The single-channel SAR architecture and serial interface reduce wiring and board-space requirements, while the 2.7 V to 5.5 V operating range supports 3 V and 5 V system rails. For communications-grade designs, engineers must verify noise, reference stability, serial timing, and channel settling against the complete manufacturer datasheet rather than relying only on the headline resolution and throughput figures.
Low-Power Audio Level Measurement
The TLV1572CD can be used for audio-level monitoring when the audio signal is first conditioned into the ADC's 0 V to VCC input range. Its 1.25 MSPS maximum sampling rate is sufficient for many level-metering and control tasks, and the 10-bit resolution provides 1,024 quantization levels for the selected measurement range. For accurate results, the design should include gain control, anti-alias filtering, headroom management, and calibration. The serial output is also appropriate for a host microcontroller performing peak, RMS, or threshold calculations.
נתוני עזר הנדסיים עבור TLV1572CD — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה |
|---|---|
| Resolution | 10 bit |
| Sampling Rate | 1.25 MSPS |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Analog Input Range | 0 V to VCC |
| Number of Channels | 1 channel |
| Architecture | Successive-approximation register (SAR) |
| Package | 8-pin SOIC |
| Brand | Texas Instruments |
| Auto Power-Down Current | 10 μA when no conversion is performed |
| Differential Nonlinearity | ±1 LSB |
מבדילים עיקריים
- Compact 10-bit conversion in an 8-pin SOIC (לעומתHigher-resolution or differential ADC families)
- Low-current automatic power-down (לעומתContinuously powered converters)
- Single-supply operation over a broad range (לעומתConverters requiring separate analog and digital rails)
הערות תכנון
Use the verified 2.7 V to 5.5 V supply range and account for the converter's active dissipation of 8 mW at 3 V or 25 mW at 5 V. Automatic power-down lowers current to 10 μA between conversions, but the overall duty cycle must include time spent awake, reference current, serial-interface activity, and any external sensors. Confirm bypass-capacitor values, reference requirements, and startup behavior against the manufacturer datasheet before finalizing the power tree.
Keep the analog input path short and isolate it from digital return currents and switching nodes. Because the TLV1572CD accepts a single-ended 0 V to VCC input, the source impedance and any anti-alias-filter network can affect settling during the SAR conversion. The supplied snippets do not state the permitted source impedance or acquisition time, so use the official Texas Instruments layout guidance rather than estimating those values.
Do not assume that 1.25 MSPS is a required continuous conversion rate or that every system needs the converter powered at maximum speed. The maximum rate is a capability rating, while the application's bandwidth, noise, settling, and power requirements determine the actual operating rate. Likewise, verify the temperature range, reference configuration, serial timing, and exact pin assignments because those details are absent from the supplied verified snippets.
מידע על תאימות
The supplied verified snippets do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. These fields must be confirmed using the current Texas Instruments product page and applicable material-compliance documentation.
