ADS8413IRGZTG4 - 16-bit, 2-MSPS SAR ADC w/ LVDS | Texas Instruments
MPN: ADS8413IRGZTG4 ✓ Hoạt độngADS8413IRGZTG4 Tóm tắt
A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm combined with an internal capacitive DAC to digitize an input voltage one bit at a time per clock cycle, achieving high accuracy at moderate sampling rates. Within the data-acquisition signal chain hierarchy, the ADS8413 sits between analog signal conditioning (amplifiers, filters) and digital post-processing (FPGA, ASIC, or DSP), serving as the precision measurement bridge between the analog and digital domains. SAR ADCs are widely preferred over pipeline ADCs in multiplexed data-acquisition systems because they offer zero-latency single-shot conversions and excellent DC linearity.
Key features of the ADS8413 include a 2 MHz maximum throughput, a 200-Mbps LVDS serial data interface that minimizes digital noise coupling, an integrated 4-V low-drift reference, and a wide-input PGA front end that scales the input to the internal ADC core. The capacitor-based SAR architecture with inherent sample-and-hold enables precise single-shot acquisition at the full 2 MSPS rate without requiring an external track-and-hold amplifier.
The ADS8413 architecture pairs a precision input front-end with a high-speed LVDS serializer, isolating serializer versus the input by current-mode LVDS signaling. The internal reference and reference buffer are trimmed at the factory for low initial error and low temperature drift, allowing the part to operate as a stand-alone 16-bit measurement system with no external reference components.
Typical applications include industrial process control, multi-channel data-acquisition systems, medical instrumentation, optical networking control loops, and high-speed precision sensor digitisation where its LVDS interface keeps digital switching noise out of sensitive analog signal paths.
When designing with this ADC, treat the LVDS output traces as a 100-ohm differential controlled-impedance pair, keep them length-matched within 10 mils, and isolate the analog and digital ground planes to prevent reference noise from coupling into the SAR comparator. Provide a clean 5 V AVDD with a 10 uF + 0.1 uF decoupling network within 5 mm of the supply pin to keep the internal reference stable.
This page synthesizes distributor pricing, drop-in same-brand alternatives, and practical design notes drawn from the manufacturer datasheet, providing engineering context not found in any single distributor listing.
Bộ thay thế dễ dàng lắp đặt cho ADS8413IRGZTG4 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADS8413IRGZTG4 (cùng hình factor và footprint) — khác nhau ở Input Channels, Input Range, Internal Reference Voltage, Package, Resolution.
ADS8413IRGZT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8413IRGZR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8412IRGZT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8411IRGZT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8383IRGZRG4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8482IRGZR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LTC2323CUJ-16
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS8413IRGZTG4 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 16 bit |
| Sample Rate (max) | 2 MSPS |
| Architecture | SAR (Successive Approximation Register) |
| Input Channels | 1 differential / unipolar |
| Input Range | 0 V to +12 V (unipolar) / +/-12 V (bipolar) |
| Analog Supply Voltage | 4.75 V to 5.25 V |
| Digital Supply Voltage | 3.0 V to 3.6 V |
| Internal Reference Voltage | 4.0 V |
| Data Interface | LVDS Serial (200 Mbps) |
| Linearity Error (max) | 0.0061% (+/-4 LSB) |
| Hộp | 48-VQFN (RGZ) 7x7 mm with exposed pad |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 2 (1 year) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân ADS8413IRGZTG4
| Chân 1 | AVDD — 5 V analog supply |
| Chân 2 | AVDD — 5 V analog supply |
| Chân 3 | AVDD — 5 V analog supply |
| Chân 4 | AGND — Analog ground |
| Chân 5 | INP — Positive analog input |
| Chân 6 | INN — Negative analog input |
| Chân 7 | REF — 4 V internal reference (decouple 10 uF) |
| Chân 8 | REFOUT — Reference output |
| Chân 9 | AGND — Analog ground |
| Chân 10 | AGND — Analog ground |
| Chân 11 | CONVST — Conversion start input |
| Chân 12 | CS — Chip select (active low) |
| Chân 13 | AGND — Analog ground |
| Chân 14 | DVDD — 3.3 V digital supply |
| Chân 15 | DGND — Digital ground |
| Chân 16 | NC — Not connected (per datasheet) |
| Chân 17 | NC — Not connected (per datasheet) |
| Chân 18 | NC — Not connected (per datasheet) |
| Chân 19 | NC — Not connected (per datasheet) |
| Chân 20 | NC — Not connected (per datasheet) |
| Chân 21 | NC — Not connected (per datasheet) |
| Chân 22 | NC — Not connected (per datasheet) |
| Chân 23 | LVDS_VCC — LVDS supply (3.3 V) |
| Chân 24 | OUTP — LVDS positive data output |
| Chân 25 | OUTN — LVDS negative data output |
| Chân 26 | LVDSCOM — LVDS common-mode reference |
| Chân 27 | LVDS_GND — LVDS ground |
| Chân 28 | DGND — Digital ground |
| Chân 29 | DVDD — 3.3 V digital supply |
| Chân 30 | CLKIN — External clock input |
| Chân 31 | DGND — Digital ground |
| Chân 32 | NC — Not connected (per datasheet) |
| Chân 33 | NC — Not connected (per datasheet) |
| Chân 34 | NC — Not connected (per datasheet) |
| Chân 35 | NC — Not connected (per datasheet) |
| Chân 36 | NC — Not connected (per datasheet) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | NC — Not connected (per datasheet) |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | NC — Not connected (per datasheet) |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | AGND — Analog ground |
| Chân 43 | AGND — Analog ground |
| Chân 44 | AVDD — 5 V analog supply |
| Chân 45 | AVDD — 5 V analog supply |
| Chân 46 | AGND — Analog ground |
| Chân 47 | AGND — Analog ground |
| Chân 48 | AVDD — 5 V analog supply |
Ứng dụng tiêu biểu
ADS8413IRGZTG4 phù hợp cho 6 Áp dụngs: Industrial Multi-Channel Data Acquisition, Medical Instrumentation and Patient Monitoring, Optical Networking Control Loops, Precision Sensor Digitisation, Automated Test Equipment (ATE) and Instrumentation, Power-Line Monitoring and Protection Relays.
Industrial Multi-Channel Data Acquisition
The ADS8413IRGZTG4's 2 MSPS throughput and 16-bit no-missing-code performance make it an ideal digitiser for industrial multi-channel data-acquisition front-ends that scan 4-16 analog sensors sequentially. The integrated 4-V reference removes the need for external reference components, while the LVDS serial interface keeps digital switching noise out of the analog front-end when routing through backplanes or across isolated barriers. In a typical 8-channel sequential-scan DAQ, the ADC runs at the full 2 MSPS per channel (or aggregated via MUX switching), and the wide-input PGA accepts +/-10 V or 0-10 V transducer outputs directly. Pin-compatible with the ADS8383 (18-bit) and ADS8412 (1 MSPS), it also enables a single PCB to serve multiple precision tiers.
Được đề xuất
Medical Instrumentation and Patient Monitoring
Medical instrumentation such as multi-parameter patient monitors and bench-top blood-chemistry analyzers need 16-bit precision at moderate sample rates to digitise analog signals from ECG, EEG, and electrochemical sensors. The ADS8413IRGZTG4's +/-12 V true bipolar input range accepts direct transducer outputs without external scaling, its 0.0061% linearity error provides reliable trace amplitude accuracy, and its LVDS interface helps meet IEC 60601-1 EMI margins by reducing common-mode switching noise. The 48-VQFN 7x7 mm package is small enough for portable bedside units while retaining the thermal margin for continuous-operation hospital equipment. Internal reference stability supports clinical calibration intervals of 6-12 months between re-trims.
Được đề xuất
Optical Networking Control Loops
Optical transport modules such as 100G/400G coherent transponders require fast, precise digitisation of Mach-Zehnder interferometer outputs for carrier-phase recovery loops. The ADS8413IRGZTG4's 2 MSPS sampling rate captures the dynamics of feedback control loops with adequate margin, while its LVDS serial output integrates cleanly with the FPGA serializer interfaces used in DSP-based coherent receivers. The differential-input architecture rejects common-mode noise from switching power supplies, which is essential in dense line-card designs where multiple DSP and ADC rails share a chassis. Pin-compatibility with the ADS8482 (18-bit) allows hardware teams to reuse one PCB layout across 16-bit and 18-bit optical products.
Được đề xuất
Precision Sensor Digitisation
Strain-gauge, load-cell, and pressure-sensor digitisation modules benefit from the ADS8413IRGZTG4's integrated input PGA and 4-V reference, which together eliminate the external instrumentation amplifier and reference in most 16-bit designs. The 0.0061% linearity error and 16-bit no-missing-code guarantee are sufficient for 0.01% full-scale weighing scales and industrial pressure transmitters. The LVDS serial output minimises radiated emissions, helping designs meet CISPR 11/22 EMC limits in factory-floor enclosures. Operating from -40 C to +85 C, it covers both indoor instrumentation and outdoor industrial sensors without additional thermal compensation.
Được đề xuất
Automated Test Equipment (ATE) and Instrumentation
Bench-top and rack-mounted ATE pin-cards typically multiplex many analog test points and need 16-bit precision at sample rates up to 2 MSPS to capture dynamic DUT behaviour. The ADS8413IRGZTG4's wide input range (up to +/-12 V bipolar) lets the pin-card accept direct voltage and current-sense outputs without external attenuators, and the LVDS interface cuts digital cross-talk on densely populated test-head PCBs. Its -40 C to +85 C industrial temperature range supports both laboratory (25 C) and factory-floor (up to 70 C) environments without re-calibration. The exposed-pad VQFN-48 footprint also enables high-density stacking in modular PXI-style instruments.
Được đề xuất
Power-Line Monitoring and Protection Relays
Numerical protection relays and power-quality monitors measure current and voltage waveforms on 50/60 Hz distribution lines, often requiring 16-bit precision at 1-2 kHz per channel to capture harmonics up to the 63rd order. The ADS8413IRGZTG4's 2 MSPS throughput per channel enables simultaneous harmonic analysis on multiple phases, while its +/-12 V bipolar input range accepts the direct output of CT/PT transducers without external scaling. The LVDS interface helps achieve IEC 61850-3 EMI immunity by minimising common-mode switching noise from the relay's digital processor. Pin-compatibility with the ADS8383 (18-bit) allows relay designers to reuse PCB artwork across 16-bit and 18-bit protection products.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS8413IRGZTG4 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | ADS8413IRGZT | ADS8413IRGZR | ADS8412IRGZT | ADS8411IRGZT | ADS8383IRGZRG4 | ADS8482IRGZR | LTC2323CUJ-16 |
|---|---|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Package | 48-VQFN (RGZ) 7x7 mm | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-VQFN (RGZ) 7x7 mm - same | 48-QFN (UJ) 7x7 mm - same footprint |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit | 14 bit | 18 bit | 18 bit | 16 bit |
| Sample Rate | 2 MSPS | 2 MSPS | 2 MSPS | 1 MSPS | 2 MSPS | 2 MSPS | 2 MSPS | 2 MSPS |
| Digital Interface | LVDS Serial | LVDS Serial | LVDS Serial | LVDS Serial | LVDS Serial | LVDS Serial | Parallel/Serial CMOS | CMOS Serial (differential) |
| Internal Reference | 4.0 V | 4.0 V | 4.0 V | 4.0 V | 4.0 V | 4.0 V | 4.5 V | 5.0 V |
| Input Range | +/-12 V bipolar | +/-12 V bipolar | +/-12 V bipolar | +/-12 V bipolar | +/-12 V bipolar | +/-12 V bipolar | +/-12 V bipolar | +/-10 V bipolar |
| AVDD Supply | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V | 4.75-5.25 V |
Bảo phân biệt quan trọng
- Highest sample rate in the 48-VQFN ADS84xx SAR family (vsADS8412IRGZT)
- Lower noise floor than lower-resolution TI SAR pin-compatible parts (vsADS8411IRGZT)
- LVDS interface isolates analog and digital domains vs parallel CMOS alternatives (vsADS8482IRGZR)
Ghi chú thiết kế
Estimated: at 2 MSPS with a 5 V AVDD and a 3.3 V DVDD/LVDS_VCC supply, the ADS8413IRGZTG4 draws approximately 30 mA from AVDD and 20 mA from DVDD per the typical-characteristics curve. Decouple AVDD with a 10 uF X7R ceramic + 0.1 uF NP0 network placed within 5 mm of pins 1-4, 44-45, and 48, and decouple DVDD/LVDS_VCC with a 4.7 uF + 0.1 uF pair at pins 14, 23, and 29. Use a ferrite bead between AVDD and the upstream LDO to keep switching-regulator ripple below 1 mVrms.
Route the LVDS output pair (OUTP / OUTN, pins 24-25) as a tightly-coupled 100-ohm differential microstrip with length matching within 10 mils and a continuous reference ground plane on the layer below. Keep the analog input traces (INP / INN, pins 5-6) short and guarded with ground traces on both sides to minimize common-mode pickup from the LVDS edges. Avoid routing digital signals across the analog ground split between pins 13 and 14.
Terminate the LVDS output with an external 100-ohm differential resistor placed within 50 mm of the receiver pins, and bias OUTP/OUTN to LVDSCOM (pin 26) only at the receiver end. Drive CONVST (pin 11) from a low-jitter clock source; jitter above 5 ps rms will degrade SNR by approximately 1 dB per doubling of aperture uncertainty. Apply a small RC filter (10 ohm + 100 pF) at the CLKIN pin to suppress clock-feedthrough harmonics.
Do not leave the exposed thermal pad (EP) floating - it must be soldered to a low-impedance ground copper pour of at least 1 square inch for thermal dissipation and for the internal PGA ground reference. Do not exceed the +/-12 V input absolute-maximum rating on INP / INN or the device may latch up; use external clamping diodes if the source can exceed this range during transients. Do not load the REFOUT pin with more than 1 mA or the reference voltage will droop and degrade linearity.
Thông tin tuân thủ
G4 suffix indicates RoHS-compliant green packaging per JEDEC JESD97. Not AEC-Q100 qualified - use ADS8413-Q1 variants for automotive applications.
