ADS1210PG4 - 24-Bit Delta-Sigma ADC, 18-PDIP | Texas Instruments
MPN: ADS1210PG4 ✓ نشطADS1210PG4 نظرة عامة
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts a continuous analog voltage into a discrete digital code; the delta-sigma architecture in particular uses oversampling and noise-shaping to push quantization noise away from the signal band of interest, then decimates to a lower-rate high-resolution output. The ADS1210PG4 sits in the precision data-acquisition tier, well below SAR ADCs in raw speed but well above them in noise-free resolution, making it the device of choice when measuring low-frequency transducer signals such as strain gauges, RTDs, thermocouples, and weigh-scale load cells.
Key features include a differential front end with wide common-mode range, self-calibration of offset and gain, on-chip input buffers, and a flexible SINC^4 digital filter with programmable sample rates from 1 Hz to 16 kHz via an external reference and clock. The integrated PGA provides gains from 1 to 16 in binary steps, allowing small transducer signals (millivolts) to be amplified before conversion and eliminating the need for an external instrumentation amp in many designs. Calibration modes (self, system, background) compensate for drift and PC-board leakage.
Typical applications include industrial weighing scales, process instrumentation (pressure, flow, temperature), smart sensor transmitters, portable medical instrumentation, and laboratory data loggers where single-supply +5V operation, high resolution, and a parallel-through-hole footprint simplify PCB and firmware design. When designing with the ADS1210PG4, treat the analog and digital grounds as split nets joined at a single point beneath the IC, place the 1 nF to 10 uF decoupling capacitors as close as possible to AVDD/DVDD pins, and drive the modulator clock with a clean low-jitter source. The 'G4' suffix denotes the Pb-free (RoHS) finish designation; the underlying silicon is identical to the legacy ADS1210P.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement rather than duplicate the manufacturer datasheet.
بدائل مباشرة لـ ADS1210PG4 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع ADS1210PG4 (نفس عامل الشكل والبصمة) — يختلف في Programmable Gain Amplifier.
ADS1210P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←ADS1210PG4
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←ADS1211P
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADS1210U/1KG4
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADS1259IPWR
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADS124S08IPBSR
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
ADS1210PG4 الحدود القصوى والخصائص الكهربائية
| الدقة | 24 bits |
| Architecture | Delta-Sigma (Sigma-Delta) |
| Number of Input Channels | 1 differential (4 analog inputs via pin mux) |
| Input Type | Differential, bipolar/unipolar |
| Sampling Rate (Max) | 16 kS/s (19.5 kS/s modulator rate per some listings) |
| Effective Resolution at 10 Hz | 23 bits |
| Effective Resolution at 1 kHz | 20 bits |
| No-Missing-Code Performance | 22 bits |
| Integral Nonlinearity (INL) | 0.0015% (EL) max |
| Programmable Gain Amplifier | 1, 2, 4, 8, 16 |
| Data Interface | Serial, SPI-compatible |
| جهد المرجع | External, differential |
| جهد التغذية | +5 V single supply |
| درجة حرارة التشغيل | -40C to +85C |
| العلبة / الحالة | 18-PDIP (0.300 inch, 7.62 mm) |
| نوع التركيب | Through-Hole |
| Packaging | Tube |
| حالة RoHS | Compliant (G4 = Pb-free finish) |
تكوين أطراف ADS1210PG4
| دبوس 1 | AINP — Positive analog input (differential channel A) |
| دبوس 2 | AINN — Negative analog input (differential channel A) |
| دبوس 3 | VBIAS — Analog input bias voltage (bypass to AGND) |
| دبوس 4 | AGND — Analog ground |
| دبوس 5 | VREF+ — Positive reference input |
| دبوس 6 | VREF- — Negative reference input |
| دبوس 7 | AVDD — Analog +5V supply |
| دبوس 8 | DVDD — Digital +5V supply |
| دبوس 9 | DGND — Digital ground |
| دبوس 10 | XIN — Crystal oscillator input |
| دبوس 11 | XOUT — Crystal oscillator output |
| دبوس 12 | SCLK — Serial interface clock |
| دبوس 13 | SDOUT — Serial data output |
| دبوس 14 | SDIN — Serial data input |
| دبوس 15 | DRDY — Data ready (active low) |
| دبوس 16 | SYNC — Synchronization input |
| دبوس 17 | RESET — Reset input |
| دبوس 18 | TEST — Test mode (tie to DGND in normal operation) |
التطبيقات النموذجية
ADS1210PG4 مناسب لـ 7 التطبيقs: Industrial Weigh Scales, Process Pressure Transmitters, Temperature Measurement (RTD / Thermocouple), Strain-Gauge and Bridge Sensor Systems, Portable Medical Instrumentation, Laboratory Data Acquisition Systems, Smart Sensor Transmitter Modules.
Industrial Weigh Scales
The ADS1210PG4 fits weigh-scale front ends because its 24-bit resolution and integrated PGA (gains 1-16) directly digitize the millivolt-level output of a load cell bridge without a separate instrumentation amplifier. With 23 effective bits at the 10 Hz output rate typical for static weighing, the converter resolves weight steps well below the resolution of mechanical scale platforms. The differential input accepts the bridge output plus a 5V excitation-derived common-mode voltage, simplifying analog signal chain. Per TI ADS1210 datasheet, on-chip self-calibration cancels offset and gain drift, ensuring long-term stable readings in factory-floor environments with thermal cycling.
موصى به
Process Pressure Transmitters
The ADS1210PG4 is well-suited to 4-20 mA smart pressure transmitters and process instrumentation because its single +5V supply, low power, and 24-bit noise-free resolution digitize bridge-style pressure transducers with high accuracy. The differential input accepts the bridge output, while the on-chip PGA amplifies low-output sensors. The SPI-compatible serial interface links cleanly to low-cost microcontrollers in 2-wire loop-powered transmitters. According to the TI ADS1210 datasheet, the device supports system calibration, which removes PCB parasitic thermocouple errors introduced by the wiring harness.
موصى به
Temperature Measurement (RTD / Thermocouple)
The ADS1210PG4 handles RTD and thermocouple thermometry because its integrated PGA (gains up to 16) boosts the small RTD-derived voltage to full-scale, and its 24-bit resolution resolves sub-0.01C temperature steps at 10 Hz data rates typical of thermal monitoring. The differential inputs reject common-mode thermocouple errors introduced by ground loops. Combined with an external precision reference and a current source for RTD excitation, the ADS1210PG4 supports 3-wire and 4-wire RTD measurement topologies. Per TI ADS1210 datasheet, the input common-mode range accommodates grounded-junction thermocouples referenced to AGND.
موصى به
Strain-Gauge and Bridge Sensor Systems
The ADS1210PG4 is appropriate for strain-gauge signal conditioning where a Wheatstone bridge produces millivolt-level outputs and the design demands 24-bit noise-free resolution. The integrated PGA gains the signal directly without an external instrumentation amplifier, simplifying BOM. The 18-PDIP package through-hole mounting supports rugged mechanical-test fixtures. According to the TI ADS1210 datasheet, the on-chip self and system calibration compensates for bridge zero-offset and gain errors, enabling calibrated strain measurements in structural-health-monitoring systems.
موصى به
Portable Medical Instrumentation
The ADS1210PG4 fits portable medical devices such as blood-pressure monitors, pulse oximeter front ends, and bedside patient monitors because its low-power single +5V operation, small size, and 24-bit resolution capture low-frequency bioelectric signals with high fidelity. The integrated PGA eliminates external analog stages, saving board space and reducing leakage paths. Per TI ADS1210 datasheet, the low-noise floor at low data rates enables direct digitization of EEG/ECG front-end outputs after a single instrumentation amplifier, simplifying battery-powered medical designs.
موصى به
Laboratory Data Acquisition Systems
The ADS1210PG4 supports bench-top and laboratory data acquisition cards where the through-hole 18-PDIP package simplifies hand-built prototypes and where 24-bit resolution is required for slow sensor signals (pH meters, ion-selective electrodes, gas analyzers). The SPI serial interface is straightforward to bit-bang from any microcontroller or FPGA. Per TI ADS1210 datasheet, on-chip calibration and the flexible SINC^4 filter produce repeatable, low-noise measurements for laboratory-grade instruments, while the integrated PGA removes the need for external gain stages.
موصى به
Smart Sensor Transmitter Modules
The ADS1210PG4 powers smart sensor transmitters because it combines a precision 24-bit delta-sigma ADC, integrated PGA, and SPI interface in a single chip, allowing designers to pair it with a low-cost microcontroller for HART, IO-Link, or wireless sensor modules. The differential analog inputs accept transducer outputs directly, while on-chip calibration corrects for sensor-specific offset and gain. According to the TI ADS1210 datasheet, the single +5V supply operation is compatible with industrial 24V loop-powered architectures after a front-end regulator, simplifying field-instrument design.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ ADS1210PG4 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | ADS1210P | ADS1211P | ADS1210U/1KG4 | ADS1259IPWR | ADS124S08IPBSR |
|---|---|---|---|---|---|---|
| Package | 18-PDIP (0.300 inch, 7.62 mm) | 18-PDIP - same | 18-PDIP - same | 18-SOIC - different footprint, SMT | 20-TSSOP - different | 32-TQFP - different |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 24 bits | 24 bits | 24 bits | 24 bits | 24 bits | 24 bits |
| Architecture | Delta-Sigma | Delta-Sigma | Delta-Sigma | Delta-Sigma | Delta-Sigma | Delta-Sigma |
| Max Sample Rate | 16 kS/s | 16 kS/s | 16 kS/s | 16 kS/s | 14.4 kS/s (max data rate) | 4 kS/s |
| Integrated PGA | Yes (1, 2, 4, 8, 16) | Yes (1-16) | Yes (1-16) | Yes (1-16) | Yes | Yes (1-128) |
| Supply Voltage | +5 V single | +5 V single | +5 V single | +5 V single | 3.3 V or 5 V | 2.7 V to 5.25 V |
| Interface | SPI serial | SPI serial | SPI serial | SPI serial | SPI serial | SPI serial |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C |
| Lead-Free (RoHS) | Yes (G4 finish) | No (legacy SnPb finish) | No | Yes (G4 finish) | Yes | Yes |
أبرز الفروقات
- Through-hole 18-PDIP package with lead-free (G4) finish (مقابلADS1210U (SOIC-18 SMT))
- Single +5V supply with integrated PGA (gains 1-16) (مقابلADS124S08IPBSR (32-TQFP, 4-channel, 12 inputs))
- Pin-compatible upgrade path to ADS1211 for higher channel count (مقابلADS1211P (multi-channel variant))
ملاحظات التصميم
The ADS1210PG4 requires a clean single +5V supply. Place a 10 uF tantalum (or ceramic) bulk capacitor at the board supply input and a 0.1 uF ceramic decoupling capacitor as close as possible to each of the AVDD (pin 7) and DVDD (pin 8) pins. The analog and digital grounds should be joined at a single star point beneath the IC to prevent digital switching noise from corrupting the analog front end. Per TI ADS1210 datasheet, supply ripple above 10 mVpp at the modulator clock frequency can leak through the modulator and degrade noise performance.
Route the analog input traces (AINP, AINN) as a tightly-coupled differential pair on the top layer with a continuous ground plane beneath them, and keep them away from digital lines (SCLK, SDOUT) to minimize capacitive coupling. Place the external reference and crystal components as close to their respective pins as possible. The TI ADS1210 datasheet layout section recommends a guard trace around AINP/AINN tied to AGND to suppress leakage on high-impedance sensor inputs. For through-hole 18-PDIP boards, hand-routing the analog section on a single layer often gives the best noise performance.
Do not leave the TEST pin floating; tie TEST (pin 18) directly to DGND to disable factory test modes. Ensure the XIN/XOUT crystal or external clock source meets the datasheet drive-level requirements; a low-amplitude or noisy clock couples directly into the modulator and degrades effective resolution. Always run on-chip self-calibration after power-up and after any change in PGA gain, reference voltage, or sample rate, because uncorrected offset can exceed several LSB at high PGA settings. Estimated: at gain=16 and 10 Hz output rate, uncorrected input-referred offset can shift readings by tens of microvolts if calibration is skipped.
Drive the modulator clock from a low-jitter source (crystal oscillator preferred over RC) because clock jitter is multiplied by the delta-sigma loop gain and appears as broadband noise on the output. The TI ADS1210 datasheet specifies a 60 kHz to 60 MHz modulator clock range; for 10 Hz output rate the modulator runs at a high oversampling ratio, so even 100 ns of clock jitter has a measurable effect on effective resolution. If synchronization across multiple ADS1210PG4 channels is required, drive all XIN pins from a common clock and use the SYNC pin to align conversions.
معلومات الامتثال
The 'G4' finish designation indicates Pb-free (RoHS-compliant) terminal plating. AEC-Q100 automotive qualification is NOT available for this part; use a TI automotive-grade ADC (e.g. ADS131A04-Q1) if automotive compliance is required.
