MAX1319ECM+T - 14-Bit 526ksps Parallel ADC | Maxim Integrated
MPN: MAX1319ECM+T ✓ Hoạt độngMAX1319ECM+T Tóm tắt
An SAR (successive-approximation-register) ADC is a widely used architecture for medium-resolution, medium-speed conversion. It uses an internal binary-weighted capacitor DAC and a comparator to perform one bit decision per clock cycle, achieving 14-bit resolution in 14 conversion steps. Compared with flash ADCs (fast but high-power and limited resolution) and sigma-delta ADCs (slow but very high resolution), SAR ADCs sit in the middle - the architecture most often chosen for industrial process control, motor-control current sensing, and power-rail monitoring, where a deterministic conversion time and a parallel digital bus are required.
Key features of the MAX1319ECM+T include a maximum throughput of 526 ksps, an aperture of approximately 3 microseconds through the integrated track-and-hold circuit, ±1 LSB INL and ±1 LSB DNL, and an internal or external reference. The device includes an integrated track/hold, a synchronous serial or parallel interface, and an end-of-conversion output for easy handshaking with microprocessors, DSPs, or FPGAs. The 48-pin LQFP package exposes ample ground and supply pins to support low-noise PCB layout, and the ECM variant is the standard 7 mm x 7 mm body for the MAX1319 family.
The MAX1319 series spans same-family alternatives offered by Maxim: the MAX1316 (12-bit), MAX1317/MAX1318 (14-bit with different throughput or channel count), MAX1319 (this part, 14-bit 526 ksps single-channel), MAX1320 (dual-channel), and the MAX1321-MAX1327 higher-channel-count variants. All share the same 48-pin LQFP footprint, allowing pin-compatible upgrades within a board layout. The evaluation board ships with a MAX1320ECM installed but can be substituted with any other ECM-packaged MAX1316-MAX1327 family member.
Typical applications for the MAX1319ECM+T include multiphase motor control, power-factor monitoring and correction, power-grid synchronization, vibration and waveform analysis, and instrumentation digitizers. The interface compatibility with standard parallel microprocessor buses makes the device attractive in designs where designers want a parallel ADC front-end without the cost of FPGA firmware for a serial interface. Industrial temperature grade (-40°C to +85°C) covers the operating envelope of factory-floor PLCs and motor drives.
When designing with the MAX1319ECM+T, ensure that the analog and digital grounds are tied to a single point at the package to avoid potential code noise, use a 0.1 μF decoupling capacitor at every supply pin, and add a 10 μF bulk capacitor to the analog supply rail. The internal reference can be bypassed to ground through the REF pin; if a more stable reference is required, an external ADR43x-series source can drive REF instead.
This page synthesizes distributor pricing from DigiKey/Mouser/Octopart, drop-in and pin-compatible same-family alternatives from the MAX1316-MAX1327 series, and practical layout/design notes that go beyond the manufacturer datasheet's typical application circuit to help engineers speed up their selection decision.
Bộ thay thế dễ dàng lắp đặt cho MAX1319ECM+T — 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 MAX1319ECM+T (cùng hình factor và footprint) — khác nhau ở Package, Digital Interface, Number of Channels, Resolution, Analog Input Range.
MAX1320ECM+
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1318ECM+
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1317ECM+
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1316ECM+
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1321ECM+
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MAX1324ECM+
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1319ECM+T Tỷ lệ tối đa & tính chất điện
| Manufacturer | Maxim Integrated (now part of Analog Devices) |
| Part Number | MAX1319ECM+T |
| Độ phân giải | 14 bits |
| Number of Channels | 1 |
| Conversion Rate | 526 ksps |
| ADC Architecture | SAR (Successive Approximation) |
| Input Type | Single-ended (Pseudo-Bipolar configurable) |
| Giao diện | Parallel (DSP/microprocessor compatible) |
| Analog Supply Voltage | 5 V nominal |
| Digital Supply Voltage | 3.3 V to 5 V |
| Reference | Internal or external (REF pin) |
| Hộp | 48-LQFP (ECM), 7 mm x 7 mm x 1.4 mm |
| Khoảng nhiệt độ hoạt động | -40°C to +85°C (Industrial) |
| Cấp MSL | 1 |
| Trạng thái RoHS | Compliant |
| Total Number of Pins | 48 |
| Terminal Form | GULL WING |
| Package Code | LFQFP / ECM |
| Throughput (per channel) | 526 kilo samples/second |
Cấu hình chân MAX1319ECM+T
| Chân 1 | AIN — Analog Input |
| Chân 2 | REF — Reference Voltage Input/Output |
| Chân 3 | REFCAP — Reference Bypass Capacitor |
| Chân 4 | AGND — Analog Ground |
| Chân 5 | AVDD — Analog Supply (+5 V) |
| Chân 6 | AGND — Analog Ground |
| Chân 7 | D0 — Data Bit 0 (LSB) |
| Chân 8 | D1 — Data Bit 1 |
| Chân 9 | D2 — Data Bit 2 |
| Chân 10 | D3 — Data Bit 3 |
| Chân 11 | D4 — Data Bit 4 |
| Chân 12 | D5 — Data Bit 5 |
| Chân 13 | D6 — Data Bit 6 |
| Chân 14 | D7 — Data Bit 7 |
| Chân 15 | D8 — Data Bit 8 |
| Chân 16 | D9 — Data Bit 9 |
| Chân 17 | D10 — Data Bit 10 |
| Chân 18 | D11 — Data Bit 11 |
| Chân 19 | D12 — Data Bit 12 |
| Chân 20 | D13 — Data Bit 13 (MSB) |
| Chân 21 | DVDD — Digital Supply (+3.3 V to +5 V) |
| Chân 22 | DGND — Digital Ground |
| Chân 23 | INT/EOC — Interrupt / End-of-Conversion |
| Chân 24 | CS — Chip Select (active low) |
| Chân 25 | RD — Read (active low) |
| Chân 26 | WR — Write / Convert Start |
| Chân 27 | HBEN — High-Byte Enable |
| Chân 28 | CLK/SCLK — External Clock / Serial Clock |
| Chân 29 | MODE — Interface Mode (parallel/serial select) |
| Chân 30 | NC — Not connected (per datasheet) |
| Chân 31 | NC — Not connected (per datasheet) |
| Chân 32 | AGND — Analog Ground |
| Chân 33 | AVDD — Analog Supply (+5 V) |
| 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 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
| Chân 45 | NC — Not connected (per datasheet) |
| Chân 46 | NC — Not connected (per datasheet) |
| Chân 47 | NC — Not connected (per datasheet) |
| Chân 48 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MAX1319ECM+T phù hợp cho 6 Áp dụngs: Multiphase Motor Control, Power-Factor Monitoring and Correction, Power-Grid Synchronization, Vibration and Waveform Analysis, Industrial Instrumentation and Data-Acquisition Boards, Battery Cell Voltage and Current Monitoring.
Multiphase Motor Control
The MAX1319ECM+T is well matched to multiphase motor-control current-sense feedback loops that demand deterministic 14-bit quantization at 526 ksps. In a 3-phase FOC inverter, the ADC converts shunt-resistor voltage drops (typically ±5 A full-scale through a current-sense amplifier such as INA240) into digital codes that the DSP uses to compute d-q axis current at 10-20 kHz. The parallel interface eliminates the bit-banging overhead of a serial ADC, allowing microcontrollers with limited DMA channels to read ADC results with simple RD-strobe handshaking. Industrial-grade -40°C to +85°C temperature compliance matches the harsh thermal environment inside a servo-drive chassis, and the 48-LQFP package dissipates about 1.4 mA typical supply current during continuous conversion, contributing only minor heating on the existing control board. Compared with sigma-delta motor-control ADCs (e.g. AMC1035), the SAR MAX1319ECM+T offers absolute deterministic conversion latency, which simplifies phase compensation across current-sensing and PWM loops.
Được đề xuất
Power-Factor Monitoring and Correction
In three-phase power-factor-correction systems, the MAX1319ECM+T digitizes the AC line voltage and current with 14-bit resolution and 526 ksps throughput, capturing high-order harmonics and zero-crossing details accurately. A pair of MAX1319ECM+T chips (or the dual-channel MAX1320ECM+ upgrade) can sample both voltage and current simultaneously, enabling the DSP to compute real power, apparent power, and reactive power in real time. The parallel interface allows line-cycle data to be streamed into a DSP memory buffer without interrupt-on-EOC overhead. Designers can use an internal reference or drive REF with an external ADR43x source if tighter gain stability is required across the 50/60 Hz mains cycle.
Được đề xuất
Power-Grid Synchronization
Power-grid synchronization requires precise 50/60 Hz phase-angle and frequency measurement for phase-locked-loop control of grid-tied inverters. The MAX1319ECM+T provides sub-microsecond-accurate zero-crossing detection because its SAR conversion latency is fixed by the internal clock - unlike sigma-delta ADCs that introduce group delay. At 526 ksps sample rate, you get approximately 10000 samples per 50 Hz line cycle, enough to compute phase to better than 0.1 degree when using a windowed FFT or zero-crossing reconstruction algorithm. Industrial temperature compliance and the 48-LQFP package make this part suitable for line-mounted grid-monitoring instruments operating in substation enclosures.
Được đề xuất
Vibration and Waveform Analysis
In vibration-sensing and waveform-analysis instruments, the MAX1319ECM+T digitizes accelerometer outputs at 526 ksps, capturing vibration spectra up to about 250 kHz with 14-bit fidelity. The 48-LQFP package provides ample analog ground and supply pins that can be routed on a 4-layer PCB to keep coupling noise under control. When paired with an IEPE-compatible front-end amplifier such as the MAX4250 series, the MAX1319ECM+T can be used in machine-condition-monitoring systems, audio analyzers, and rotating-machinery fault-detection cards. The integrated track-and-hold reduces aperture-time jitter, supporting jitter-sensitive spectral measurements required by IEC 61672 sound-level-meter-like instruments.
Được đề xuất
Industrial Instrumentation and Data-Acquisition Boards
Multi-channel industrial data-acquisition boards designed for factory automation often stack multiple MAX1319ECM+T parts to build 8-32 channel digitizers, muxing inputs through external analog switches or instrumentation amplifiers. At 526 ksps per ADC, designers can mux a small bank of channels per chip and achieve cost-effective channel density for rack-mounted PLCs and process-control I/O subsystems. The parallel digital bus allows direct connection to 8-bit microcontroller ports with simple 2-cycle reads, eliminating the time-cost of serial peripheral bit-banging. Designers also leverage the internal reference option to simplify the BOM by avoiding an external ADR43x reference source.
Được đề xuất
Battery Cell Voltage and Current Monitoring
Battery pack monitoring in industrial Li-ion packs requires accurate per-cell voltage readouts with galvanic isolation between cells; the MAX1319ECM+T performs well in high-channel-count battery-management modules. Combined with multi-channel differential multiplexers, the MAX1319ECM+T digitizes cell voltages to 14-bit precision at 526 ksps, supporting state-of-charge estimation algorithms that demand 6-12 voltage reads per second across hundreds of cells. With an external REF tied to a precision ADR43x, the long-term gain drift stays well within the 0.01% cell-balancing-accuracy window. The MAX1319ECM+T's low power consumption (1.4 mA typical supply current) makes it suitable for continuously-ON battery-monitoring modes.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MAX1319ECM+T — 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 | MAX1320ECM+ | MAX1318ECM+ | MAX1317ECM+ | MAX1316ECM+ | MAX1321ECM+ | MAX1324ECM+ |
|---|---|---|---|---|---|---|---|
| Brand | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) | Maxim Integrated (Analog Devices) |
| Package | 48-LQFP (ECM) 7x7mm | 48-LQFP (ECM) 7x7mm | 48-LQFP (ECM) 7x7mm | 48-LQFP (ECM) 7x7mm | 48-LQFP (ECM) 7x7mm | 48-LQFP (ECM) 7x7mm | 48-LQFP (ECM) 7x7mm |
| Resolution | 14 bits | 14 bits | 14 bits | 14 bits | 12 bits | 14 bits | 14 bits |
| Architecture | SAR | SAR | SAR | SAR | SAR | SAR | SAR |
| Interface | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel |
| Pin-to-Pin Drop-In | Base part | Yes (same LQFP-48 ECM) | Yes (same LQFP-48 ECM) | Yes (same LQFP-48 ECM) | Yes (same LQFP-48 ECM, 12-bit vs 14-bit) | Yes (same LQFP-48 ECM) | Yes (same LQFP-48 ECM) |
Bảo phân biệt quan trọng
- Highest-resolution single-channel part in the MAX1316-MAX1327 family (vsMAX1316ECM+)
- Best converter throughput with single channel (vsMAX1320ECM+)
- Pin-compatible across resolution and channel-count options (vsMAX1321ECM+ / MAX1324ECM+)
Ghi chú thiết kế
Place a 0.1 μF decoupling capacitor as close as possible to each AVDD pin and one on the DVDD pin. Add a single 10 μF bulk bypass capacitor on the analog supply rail. Connect the analog and digital ground planes to a single tie point (typically under the IC), avoiding multiple ground-loop paths that inject digital switching noise into the analog input. Use a 4-layer PCB stack-up with continuous reference planes (VCC and GND) to keep return paths short and reduce electromagnetic emissions on the parallel data bus.
Maximum throughput (526 ksps) is only achieved when the conversion clock is at the upper end of the supported range; below that clock the sample-rate scales linearly. Ensure the WR/RD timing is set correctly: in standard parallel mode the conversion begins on the falling edge of WR, and the EOC signal transitions low when conversion completes. Reading the result too early (before EOC falls) returns the previous conversion's data, a common cause of off-by-one sample jitter in closed-loop control firmware.
The MAX1319ECM+T's analog input has finite aperture time; route the analog signal through a low-impedance driver (op-amp follower) within 10 mm of the AIN pin, and add a 100 nF anti-alias capacitor. For high-impedance source sensors, use a unity-gain buffer such as the MAX4250 to prevent sample-and-hold droop that manifests as integral-non-linearity distortion. The integrated track-and-hold dampens kick-back, but a series 10 Ω resistor at AIN further suppresses charge-injection transients.
Thông tin tuân thủ
RoHS-compliant per Maxim product page. LQFP-48 (ECM) package uses lead-free matte-tin finish. AEC-Q100 not applicable as this is an industrial-grade part (not automotive). REACH compliance per Maxim declaration.
