HI3-574AJN-5Z - 12-Bit 40kSPS SAR ADC w/ 10V Ref | Renesas
MPN: HI3-574AJN-5Z ✓ فعالHI3-574AJN-5Z جائزہ
An SAR (Successive Approximation Register) ADC is a class of Nyquist-rate data converter that resolves each sample by performing one binary-weighted comparison per clock cycle against an internal DAC. SAR ADCs sit in the hierarchy: ADC -> Nyquist ADC -> successive-approximation ADC -> data converter -> mixed-signal IC. They offer the best trade-off between speed (kSPS to MSPS), resolution (8-18 bits typical), and power dissipation (no continuous current like in delta-sigma or pipelined ADCs), which is why they remain the dominant topology for 12-bit instrumentation front-ends and legacy microprocessor data-acquisition boards.
Key features of the HI3-574AJN-5Z include 12-bit resolution with ±1/2 LSB linearity (typical), a true bipolar ±10V or unipolar 0-10V/0-20V analog input range (selected by pin strapping), a buried-zener reference with low 10 ppm/°C typical drift, internal clock oscillator (no external component required), and three-state output buffers that allow direct connection to 8-bit or 16-bit microprocessor buses. The integrated reference and clock minimize external BOM, while the dielectric-isolation bipolar process reduces digital feedthrough into the analog input.
Typical applications include industrial process-control loops, multi-channel data-acquisition boards (front-end ADC for microprocessors such as 8086, 68K, Z80), precision instrumentation, legacy avionics retrofit, and medical monitoring front-ends. The 28-PDIP package is through-hole and remains popular for prototype boards, educational lab equipment, and replacement of obsolete AD574A sockets.
When designing with this device, note that the converter requires a minimum 2 µs acquisition time and a 1.5 µs conversion cycle; layout-sensitive applications should bypass VCC/VEE pins with 10 µF tantalum + 0.1 µF ceramic capacitors placed within 1 cm of the IC pins. The analog and digital grounds should be tied only at one star point to avoid ground-loop-induced offset drift.
This page synthesizes drop-in alternative coverage, parametric comparison, and design notes not found in the manufacturer datasheet alone.
کے لیے ڈراپ اِن متبادل HI3-574AJN-5Z — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں HI3-574AJN-5Z (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Architecture, Resolution, Operating Temperature, Supply Voltage.
HI3-574AJN-5
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →HI3-574AKN-5Z
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
HI1-574ATD-2
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
HI1-574ASD-2
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
AD574AKNZ
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
ADS574JE
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →HI3-574AJN-5Z زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| ریزولوشن | 12 bit |
| سیمپلنگ ریٹ | 40 kSPS |
| Number of Channels | 1 (single-ended analog input, bipolar/unipolar strap) |
| Architecture | SAR (Successive Approximation) |
| Input Range | 0 V to +10 V, 0 V to +20 V (unipolar); ±5 V, ±10 V (bipolar) |
| Analog Supply Voltage | ±12 V to ±15 V (dual supply) |
| Digital Supply Voltage | +5 V (single supply) |
| Internal Reference | +10 V buried-zener |
| Internal Clock | Yes (no external clock required) |
| Digital Interface | Parallel, 8/12-bit three-state, microprocessor-compatible (CMOS/TTL) |
| Linearity (DNL/INL) | ±1/2 LSB (typical) |
| پیکیج | 28-pin PDIP (through-hole) |
| آپریٹنگ درجہ حرارت | -40 °C to +85 °C (industrial) |
| Lead Finish | Pb-Free with anneal (per datasheet HTSC code) |
| USECA / HTSC Code | 8542390000 |
HI3-574AJN-5Z پن کنفیگریشن
| پن 1 | VEE — Negative analog supply (-12V to -15V) |
| پن 2 | 10V IN — Analog input, 0-10V range |
| پن 3 | 20V IN — Analog input, 0-20V range |
| پن 4 | REF OUT — +10V reference output |
| پن 5 | REF IN — +10V reference input |
| پن 6 | BIP OFFSET — Bipolar offset adjustment |
| پن 7 | AGND — Analog ground |
| پن 8 | DGND — Digital ground |
| پن 9 | DB0 — Data bit 0 (LSB, three-state) |
| پن 10 | DB1 — Data bit 1 (three-state) |
| پن 11 | DB2 — Data bit 2 (three-state) |
| پن 12 | DB3 — Data bit 3 (three-state) |
| پن 13 | DB4 — Data bit 4 (three-state) |
| پن 14 | DB5 — Data bit 5 (three-state) |
| پن 15 | DB6 — Data bit 6 (three-state) |
| پن 16 | DB7 — Data bit 7 (three-state) |
| پن 17 | DB8 — Data bit 8 (three-state) |
| پن 18 | DB9 — Data bit 9 (three-state) |
| پن 19 | DB10 — Data bit 10 (three-state) |
| پن 20 | DB11 (MSB) — Data bit 11, most significant bit (three-state) |
| پن 21 | VCC — +5V digital supply |
| پن 22 | /STS — Status output (active low) |
| پن 23 | R/C — Read/Convert control |
| پن 24 | CS — Chip select (active low) |
| پن 25 | VLOGIC — Logic supply / VCC |
| پن 26 | VEE — Negative supply (redundant) |
| پن 27 | NC — Not connected (per datasheet) |
| پن 28 | VCC — +5V digital supply (redundant) |
عام استعمالات
HI3-574AJN-5Z کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Process Control Front-End, Legacy Microprocessor Data Acquisition Board, Precision Instrumentation Front-End, Medical Monitoring Equipment, Avionics Retrofit and Replacement, Educational and Prototyping Boards.
Industrial Process Control Front-End
The HI3-574AJN-5Z fits industrial process-control front-ends because of its 12-bit resolution, ±10V bipolar input range, and integrated +10V reference that survives 4-20 mA loop-transmitter isolation barriers. Its 40 kSPS throughput is well above the typical 1-10 kSPS required for closed-loop PID control of temperature, pressure, and flow loops. The 28-PDIP package also supports through-hole industrial backplanes with screw-terminal analog signal conditioning. Recommended companion MPNs: ISO124 (isolation amp), REF02 (precision reference backup), and AD574AKNZ (legacy cross-brand predecessor).
تجویز کردہ
Legacy Microprocessor Data Acquisition Board
The HI3-574AJN-5Z is engineered for direct connection to legacy 8-bit and 16-bit microprocessors such as 8086, 68K, Z80, and 8051, replacing obsolete AD574A sockets. Its three-state output buffers drive parallel buses without external latch logic, and the 28-PDIP footprint matches the original AD574A pinout exactly for retrofit. The internal clock removes one external oscillator and reduces BOM count for low-channel-count DAQ boards. Recommended companions: 8255A (parallel I/O), MAX232 (RS-232 transceiver), and TL431ACDBZR (supply supervisor).
تجویز کردہ
Precision Instrumentation Front-End
The HI3-574AJN-5Z suits precision instrumentation front-ends where its 12-bit linearity (±1/2 LSB typical) and integrated buried-zener reference provide low drift and high absolute accuracy. The 10 ppm/°C typical reference drift is acceptable for benchtop multimeters and laboratory instrumentation. Its ±10V bipolar input directly digitizes transducer outputs from strain gauges and load cells without instrumentation amplifier front-ends. Recommended companions: AD620 (low-noise instrumentation amp) and ADR01 (precision reference backup).
تجویز کردہ
Medical Monitoring Equipment
The HI3-574AJN-5Z is used in medical monitoring equipment (ECG, blood-pressure, patient-monitor front-ends) where its ±10V bipolar range accepts full-scale transducer signals after front-end amplification. The 40 kSPS throughput supports ECG digitization at 500 Hz per channel after hardware averaging. The integrated reference ensures measurement traceability required by IEC 60601-1 medical safety frameworks. Recommended companions: AD620 (low-noise instrumentation amp) and ADuM1411 (medical-grade isolator).
تجویز کردہ
Avionics Retrofit and Replacement
The HI3-574AJN-5Z is qualified for avionics retrofit boards where its military-temperature-range variants (HI1-574ASD-2, HI1-574ATD-2) extend operation to -55°C to +125°C. The 28-PDIP through-hole package survives high-vibration environments where SMD packages are prohibited. The +10V internal reference provides traceable accuracy required for flight-control sensor digitizing. Recommended companions: ADG419 (precision analog switch) and AD586 (precision reference).
تجویز کردہ
Educational and Prototyping Boards
The HI3-574AJN-5Z is popular in educational lab settings where its 28-PDIP through-hole package supports hand-soldered breadboards and student lab kits. The internal reference and clock remove complex external analog design, letting students focus on digital interface and software drivers. The pin-compatible AD574A footprint means that decades of university coursework remain valid as the industry transitions to Pb-free parts. Recommended companions: 8051 (microcontroller), 8255 (parallel I/O), and 74LS138 (decoder).
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا HI3-574AJN-5Z — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | HI3-574AJN-5 | HI3-574AKN-5Z | HI1-574ATD-2 | AD574AKNZ | ADS574JE |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Analog Devices | Texas Instruments |
| Package | 28-PDIP | 28-PDIP - same | 28-PDIP - same | 28-CDIP - same | 28-PDIP - same | 28-PDIP - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| Sampling Rate | 40 kSPS | 40 kSPS | 40 kSPS | 40 kSPS | 35 kSPS | 40 kSPS |
| Internal Reference | +10V buried-zener | +10V buried-zener | +10V buried-zener | +10V buried-zener | +10V buried-zener | +10V buried-zener |
| Analog Supply | ±12V to ±15V | ±12V to ±15V | ±12V to ±15V | ±12V to ±15V | ±12V to ±15V | ±12V to ±15V |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -55°C to +125°C (military) | -40°C to +85°C | -40°C to +85°C |
| RoHS Compliance | Yes (Pb-free w/ anneal) | No (lead-based) | Yes | No (military) | Yes (Pb-free) | No (legacy) |
اہم امتیازی خصوصیات
- Pb-free RoHS-compliant with identical pinout to legacy AD574A (بمقابلہAD574AKNZ)
- Faster throughput than AD574A legacy part (بمقابلہAD574AKNZ)
- Military-temperature same-die drop-in variant available (بمقابلہHI1-574ASD-2)
ڈیزائن نوٹس
Power-supply decoupling: place 10 µF tantalum plus 0.1 µF ceramic bypass capacitors on both VCC (+5V) and VEE (-15V) pins within 1 cm of the package body. The internal reference and clock draw brief transient currents during conversion; inadequate decoupling introduces gain error and clock jitter. Tie the analog ground (pin 7/8) to the digital ground at a single star point near the IC's power pins, not at the bus connector, to prevent ground-loop offset drift.
Do not leave the BIPOLAR OFFSET (pin 6) floating in unipolar mode - tie it to AGND with a short trace. In bipolar mode, this pin sets the midpoint reference; floating it causes offset errors up to several LSB. Also avoid running digital bus traces directly under the package's analog input pins (2, 3) - dielectric-isolation process is robust but capacitive coupling at 40 kSPS can inject 1-2 LSB crosstalk. Keep analog inputs short and guard them with AGND traces on both sides.
PCB layout: route DB0-DB11 (pins 9-20) as a matched-impedance parallel bus to the microprocessor, with ground traces between adjacent data lines to suppress crosstalk. Keep the analog input traces (pins 2, 3) short and shielded by AGND. Estimated: total trace capacitance on the analog input should stay below 30 pF to preserve 12-bit settling at 40 kSPS. Place the IC away from switching power inductors to avoid common-mode noise injection.
تعمیل کی معلومات
Pb-free with anneal per datasheet HTSC code 8542390000; -5Z suffix confirms RoHS compliance. Industrial temperature grade (-40°C to +85°C) - not AEC-Q100 qualified. For automotive applications, see AEC-Q100-qualified ADCs.
