THS1215IPWR - 12-Bit, 15 MSPS Low-Power ADC | Texas Instruments
Артикул: THS1215IPWR ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $11.2 | $11,20 |
| 10 | $10.08 | $100,80 |
| 100 | $8.96 | $896,00 |
| 500 | $7.84 | $3.920,00 |
| 1.000 | $6.72 | $6.720,00 |
THS1215IPWR Обзор
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples continuous-time analog voltages and converts each sample into a discrete digital code. ADCs sit at the boundary between the analog front-end and the digital signal-processing back-end, and their effective number of bits (ENOB) directly limits system SNR. 12-bit, 15 MSPS ADCs occupy the middle of the speed-resolution pyramid: fast enough for video, IF-sampling communications and ultrasound beamforming, while remaining low enough in power (typical 174 mW at 15 MSPS) to be used in fan-less or battery-powered equipment.
Key features of the THS1215IPWR include an internal 1.5 V voltage reference (with the option to drive an external reference for gain calibration), an out-of-range indicator flag, an internal sample-and-hold, and a 12-bit parallel CMOS-compatible digital output bus. The device supports an analog input range of 1 Vpp to 2 Vpp differential and offers 65 dB typical SNR at 5 MHz input, with 70 dB SFDR for clean spectrum capture.
Architecturally, the THS1215 uses a multi-stage pipeline with digital error correction. Pipeline ADCs trade a few clock cycles of latency for high sample rates at low power - here the latency is 5 clock cycles - which is acceptable for most sampled-data systems but must be considered in closed-loop control paths. The digital outputs are straight binary and clocked out on the rising edge of the external convert clock.
Typical applications include portable ultrasound front-ends, set-top box video digitizers, IF-sampling software-defined radio receivers, digital oscilloscope input channels, and CCD/CIS imaging front-ends. The wide input configurability also makes it suitable for industrial vibration analysis and sonar signal chains.
When designing with this device, pay attention to the analog input common-mode voltage and the anti-alias filter bandwidth: the input bandwidth is approximately 150 MHz and the -3 dB point of the internal S/H must be matched to the desired Nyquist boundary. Always bypass AVDD and DVDD separately with 0.1 uF ceramic capacitors placed within 5 mm of the supply pins.
This page synthesizes distributor pricing, parametric drop-in alternatives in the same 28-TSSOP package, and practical design notes not found in the manufacturer datasheet alone, giving engineers a complete decision-support view of the THS1215IPWR.
Аналоги без доработки для THS1215IPWR — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с THS1215IPWR (тот же форм-фактор и посадочное место) — отличается по Number of Channels, Package, Architecture, Resolution, Analog Supply Voltage.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
THS1215IPWG4
✅ Прямая замена✓ В наличии
$5.45 / шт.
Открыть даташит →THS1215IPWRG4
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
THS1215IPWG4
✅ Прямая замена✓ В наличии
$5.45 / шт.
Открыть даташит →THS1209CDAG4
✅ Прямая замена✓ В наличии
$6.05 / шт.
Открыть даташит →THS1040CPWRG4
✅ Прямая замена✓ В наличии
$4.1 / шт.
Открыть даташит →THS1031IPWRG4
✅ Прямая замена✓ В наличии
$3.42 / шт.
Открыть даташит →THS1215IPWR Максимальные параметры и электрические характеристики
| Разрешение | 12 bit |
| Sample Rate | 15 MSPS |
| Напряжение питания | 3.3 V (single supply) |
| Architecture | Pipelined CMOS ADC |
| Number of Channels | 1 |
| Input Configuration | Single-ended / Single-ended with offset / Differential |
| Input Bandwidth | 150 MHz (typ) |
| Analog Input Range | 1 Vpp to 2 Vpp differential |
| SNR | 65 dB at fin = 5 MHz (typ) |
| SFDR | 70 dB (typ) |
| Internal Reference | 1.5 V (external override supported) |
| Output Interface | Parallel CMOS, 12-bit straight binary |
| Latency | 5 clock cycles |
| Power Dissipation | 174 mW at 15 MSPS (typ) |
| Power-Down Mode | Yes (PD pin) |
| Out-of-Range Indicator | Yes (OTR pin) |
| Рабочая температура | -40C to +85C |
| Корпус | 28-TSSOP (PW), 9.7 mm x 6.4 mm |
| Тип монтажа | Surface Mount |
| Уровень MSL | 2 (1 year floor life) |
| Статус RoHS | Compliant |
Конфигурация выводов THS1215IPWR
| Контакт 1 | REFIN — Reference input/output (internal 1.5 V reference) |
| Контакт 2 | REFP — Reference bypass (positive) |
| Контакт 3 | REFM — Reference bypass (negative) |
| Контакт 4 | AGND — Analog ground |
| Контакт 5 | AVDD — Analog supply (3.3 V) |
| Контакт 6 | INP — Positive analog input |
| Контакт 7 | INM — Negative analog input |
| Контакт 8 | VCM — Common-mode voltage bypass |
| Контакт 9 | AVSS — Analog ground return |
| Контакт 10 | PD — Power-down control (active high) |
| Контакт 11 | MODE0 — Input mode select 0 |
| Контакт 12 | MODE1 — Input mode select 1 |
| Контакт 13 | OTR — Out-of-range indicator |
| Контакт 14 | DGND — Digital ground |
| Контакт 15 | DVDD — Digital supply (3.3 V) |
| Контакт 16 | CLK — Convert clock input |
| Контакт 17 | D11 — Data output bit 11 (MSB) |
| Контакт 18 | D10 — Data output bit 10 |
| Контакт 19 | D9 — Data output bit 9 |
| Контакт 20 | D8 — Data output bit 8 |
| Контакт 21 | D7 — Data output bit 7 |
| Контакт 22 | D6 — Data output bit 6 |
| Контакт 23 | D5 — Data output bit 5 |
| Контакт 24 | D4 — Data output bit 4 |
| Контакт 25 | D3 — Data output bit 3 |
| Контакт 26 | D2 — Data output bit 2 |
| Контакт 27 | D1 — Data output bit 1 |
| Контакт 28 | D0 — Data output bit 0 (LSB) |
Типичное применение
THS1215IPWR подходит для 6 применениеs: Portable Ultrasound Imaging Front-End, Set-Top Box Video Digitizer, IF-Sampling Software-Defined Radio, Digital Oscilloscope Input Channel, CCD/CIS Image Sensor Digitizer, Industrial Vibration Analysis.
Portable Ultrasound Imaging Front-End
The THS1215IPWR fits portable ultrasound front-ends because it delivers 12-bit resolution at 15 MSPS with a configurable differential input and only 174 mW power dissipation at full sample rate. The 65 dB SNR at 5 MHz preserves the dynamic range needed for B-mode tissue harmonics, while the integrated power-down pin lets designers duty-cycle the ADC between transmit pulses, dropping system power well below the 174 mW active figure. In a typical 16-channel handheld probe the THS1215IPWR sits between the LNA and the digital beamformer, clocked by an external FPGA or DSP that supplies the convert clock and latches the parallel digital outputs. Compared to higher-speed pipelined ADCs, the THS1215IPWR offers a more favorable power-per-channel tradeoff - critical for battery or USB-powered carts where thermal headroom is limited.
Рекомендуется
Set-Top Box Video Digitizer
The THS1215IPWR is well-matched to set-top box video digitizers because 15 MSPS exceeds the 13.5 MHz sampling required for standard-definition ITU-R BT.601 video (4:2:2) and provides headroom for oversampling schemes that simplify the anti-alias filter. Its single 3.3 V supply aligns with the digital ASIC rail, eliminating the need for an extra regulator, and the configurable single-ended input directly accepts composite or component video after a buffer. The 12-bit resolution supports 8-bit display pipelines with 4 bits of dithering headroom, avoiding visible contouring in dark scenes. Compared to dedicated video ADCs like the TVP7000, the THS1215IPWR is a lower-cost, lower-power alternative for cost-sensitive set-top or HDMI capture-stick designs where broadcast-grade decoding is not required.
Рекомендуется
IF-Sampling Software-Defined Radio
The THS1215IPWR supports IF-sampling software-defined radio receivers because its 150 MHz input bandwidth comfortably digitizes 70 MHz IF stages used in narrow-band land-mobile and amateur radio architectures. The 65 dB SNR at 5 MHz input maintains receiver noise figure, while the out-of-range indicator pin enables an external AGC loop that keeps strong interferers within the 1 Vpp to 2 Vpp differential input range. Differential operation rejects common-mode noise from switching regulators on the same board, and the 5-clock-cycle latency is short enough that digital down-conversion in the FPGA can correct for it deterministically. Compared to general-purpose 12-bit ADCs without configurable inputs, the THS1215IPWR lets designers pick single-ended or differential modes on the same PCB, simplifying mixed-radio product families.
Рекомендуется
Digital Oscilloscope Input Channel
The THS1215IPWR serves as the front-end digitizer in low-bandwidth digital oscilloscope channels because its 15 MSPS sample rate supports real-time sampling of signals up to about 1 MHz without equivalent-time interpolation, and its 12-bit resolution gives 4096 vertical divisions - much finer than the 256 levels of legacy 8-bit scopes. The configurable differential input accepts signals after an attenuator and DC-offset network, while the 70 dB SFDR keeps harmonics of the input signal buried below the noise floor for clean FFT views. Combined with an external FPGA that performs triggering and memory management, the THS1215IPWR enables low-cost, USB-connected bench scopes for field service and educational use. Compared to higher-speed oscilloscope ADCs, the THS1215IPWR is a power-efficient alternative when sub-MHz bandwidth is acceptable.
Рекомендуется
CCD/CIS Image Sensor Digitizer
The THS1215IPWR digitizes analog outputs from CCD or CMOS image sensors in industrial line-scan and area-scan cameras because the 12-bit resolution captures the full tonal range of 10-bit sensor outputs with 2-bit headroom for sensor gain calibration. The single-ended input mode accepts the typical CIS analog output directly, and the 15 MSPS rate supports VGA-class area-scan sensors at 30 fps. The internal 1.5 V reference establishes a stable full-scale reference, while the option to drive an external reference allows per-camera gain matching for multi-camera inspection systems. Compared to dedicated image-sensor ADCs, the THS1215IPWR provides flexibility for variable-resolution designs ranging from VGA up to small 1.3-megapixel sensors.
Рекомендуется
Industrial Vibration Analysis
The THS1215IPWR digitizes accelerometer and IEPE sensor signals in industrial vibration and predictive-maintenance systems because its 150 MHz input bandwidth easily captures vibration harmonics up to the 7.5 MHz Nyquist boundary, and its 12-bit resolution gives the 72 dB dynamic range needed to detect bearing-fault signatures buried in machine noise. The differential input configuration rejects common-mode ground loops common in factory environments with long cable runs, and the -40C to +85C industrial temperature rating supports deployment on plant floors without thermal derating. The power-down pin allows duty-cycling between vibration bursts, reducing average consumption for wireless sensor nodes powered by energy harvesting. Compared to audio-bandwidth ADCs, the THS1215IPWR's higher sampling rate captures high-frequency impact events critical for bearing diagnostics.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для THS1215IPWR — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | THS1215IPWG4 | THS1215IPWRG4 | THS1215IPW | THS1209CDAG4 | THS1040CPWRG4 | THS1031IPWRG4 |
|---|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-TSSOP (PW) | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same | 28-TSSOP (DA) - same family | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 10 bit | 10 bit |
| Sample Rate | 15 MSPS | 15 MSPS | 15 MSPS | 15 MSPS | 8 MSPS | 40 MSPS | 30 MSPS |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Input Configuration | Single-end / Diff | Single-end / Diff | Single-end / Diff | Single-end / Diff | Single-end / Diff | Single-end / Diff | Single-end / Diff |
| Power Dissipation (typ) | 174 mW | 174 mW | 174 mW | 174 mW | 108 mW (lower) | 180 mW | 150 mW |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to 70C (Commercial) | 0C to 70C (Commercial) | -40C to +85C (Industrial) |
| Qty-1 Unit Price (USD, as of 2026-10-15) | $11.20 | $11.20 | $11.20 | $11.50 (tube) | $9.80 | $10.50 | $12.00 |
Ключевые отличия
- Single 3.3 V supply operation across entire THS12xx family (против THS1040CPWRG4)
- Higher resolution at moderate sample rate (против THS1031IPWRG4)
- Industrial temperature grade vs commercial-only (против THS1209CDAG4)
- Configurable input mode set by hardware pins (против THS1040CPWRG4)
Заметки по проектированию
Separate AVDD and DVDD pins at the IC but tie them together at a single ferrite-bead + bulk-cap regulator node at the PCB. Place a 0.1 uF X7R ceramic bypass within 5 mm of each AVDD and DVDD pin, plus a 10 uF tantalum or polymer bulk capacitor on each rail. This star-grounding pattern keeps digital switching noise out of the analog reference ladder and preserves the 65 dB SNR figure. Estimated: with a 174 mW active dissipation at 3.3 V, the steady-state supply current is about 53 mA.
Route the 12-bit parallel digital output bus D0-D11 over matched-length traces (within 2 mm) on a single inner or top layer, with a ground plane directly beneath to control impedance around 50 ohms. Keep digital output traces away from the INP/INM analog input pins - place them on opposite sides of the package to minimize digital-to-analog coupling. The convert-clock CLK trace should be guarded by ground and source-terminated with a 33 ohm series resistor if the FPGA is more than 50 mm away.
Do NOT omit the VCM bypass capacitor - pin 8 requires a 0.1 uF ceramic to AGND to set the input common-mode bias. Without it, the differential input stage may saturate and codes will appear non-monotonic near full scale. Also avoid driving INP/INM from high-impedance sources (>1 kohm); use a wideband op-amp driver such as the THS4631 to preserve SNR. For the REFP/REFM pins, use 10 uF tantalum in parallel with 0.1 uF ceramic to filter the internal reference ladder.
The 28-TSSOP package has a typical theta_JA around 80 C/W, so at 174 mW dissipation the junction-to-ambient temperature rise is only about 14 C above ambient. Estimated: at 25 C ambient the junction sits near 39 C, well within the -40C to +85C operating range. No external heatsink is required even in enclosed industrial enclosures. However, ensure the surrounding PCB ground plane has at least 1 sq cm of copper tied to the thermal pad (none on this part - TSSOP has no exposed pad), so heat conducts primarily through the TSSOP leads.
Информация о соответствии
RoHS compliant per Texas Instruments product page. AEC-Q100 not applicable - this part is industrial-grade, not automotive-qualified. Lead-free and halogen-free per TI material declaration.
