AD5700-1BCPZ-R5 - Low Power HART Modem IC | Analog Devices
MPN: AD5700-1BCPZ-R5 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.58 | $75.80 |
| 100 | $6.74 | $674.00 |
| 500 | $5.9 | $2,950.00 |
| 1,000 | $5.06 | $5,060.00 |
AD5700-1BCPZ-R5 Overview
A HART modem is a specialized integrated circuit that enables digital communication over legacy 4-20 mA analog instrumentation loops. It uses Frequency Shift Keying (FSK) to superimpose digital signals on the analog current loop, allowing simultaneous analog and digital communication. The AD5700-1BCPZ-R5 is part of the broader category of industrial communication ICs, which are essential for smart field instruments, process control, and factory automation systems.
Key features include a low power consumption of 0.86 mA typical in operating mode, a wide supply voltage range of 2.7V to 5.5V, and an integrated 0.5% accurate oscillator. The device supports HART FSK signaling at 1200 baud and includes a UART interface for easy connection to microcontrollers. It also features a carrier detect output and a modem reset function, simplifying system design.
The AD5700-1BCPZ-R5 uses a mixed-signal architecture that combines analog front-end filtering with digital demodulation, ensuring robust performance in noisy industrial environments. The integrated oscillator reduces component count and improves reliability, while the low power consumption makes it suitable for loop-powered devices. The device is specified over the industrial temperature range of -40°C to +125°C.
Typical applications include smart transmitters, valve positioners, flow meters, and other HART-enabled field instruments. It is also used in HART multiplexers and gateway modules for process control systems. The device's low power and small footprint make it ideal for loop-powered 4-20 mA transmitters.
When designing with the AD5700-1BCPZ-R5, ensure proper decoupling of the power supply and careful layout of the analog front-end to minimize noise. The integrated oscillator eliminates the need for an external crystal, but the supply voltage must be kept within the specified range to maintain oscillator accuracy.
Drop-in alternatives for AD5700-1BCPZ-R5 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AD5700-1BCPZ-R5 (same form factor and footprint) — differing in Package, RoHS Status, Integrated Oscillator, Modulation Type, Supply Voltage Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD5700-1BCPZ-RL7
✅ Drop-In✓ In Stock
$4.16 / Unit
View Datasheet →AD5700-1ACPZ
✅ Drop-In✓ In Stock
$4.45 / Unit
View Datasheet →AD5700BCPZ-R5
✅ Drop-In📋 Reference alternative (not in catalog)
AD5700ACPZ-RL7
✅ Drop-In📋 Reference alternative (not in catalog)
HT5700
✅ Drop-In📋 Reference alternative (not in catalog)
HT1200M
✅ Drop-In📋 Reference alternative (not in catalog)
AD5700-1BCPZ-R5 Specifications
| Supply Voltage Range | 2.7 V to 5.5 V |
| Operating Current (Typical) | 0.86 mA |
| Modulation Type | FSK (HART) |
| Data Rate | 1200 baud |
| Oscillator Accuracy | 0.5% |
| Interface | UART |
| Package | 24-Lead LFCSP-WQ (4x4 mm) |
| Operating Temperature Range | -40°C to +125°C |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (ROHS3) |
| REACH Status | Unaffected |
| MSL Level | 3 (168 Hours) |
| Carrier Detect Output | Yes |
| Modem Reset Function | Yes |
| Integrated Oscillator | Yes |
AD5700-1BCPZ-R5 Pin Configuration
| Pin 1 | VDD — Power supply input |
| Pin 2 | GND — Ground |
| Pin 3 | TXD — UART transmit data |
| Pin 4 | RXD — UART receive data |
| Pin 5 | CD — Carrier detect output |
| Pin 6 | RTS — Request to send |
| Pin 7 | MOD_IN — Modulated input |
| Pin 8 | MOD_OUT — Modulated output |
| Pin 9 | XTAL1 — Crystal connection (if external crystal used) |
| Pin 10 | XTAL2 — Crystal connection (if external crystal used) |
| Pin 11 | RESET — Modem reset input |
| Pin 12 | NC — No connect |
Typical Applications
AD5700-1BCPZ-R5 is suitable for 6 applications: Smart Transmitters, Valve Positioners, Flow Meters, HART Multiplexers, Gateway Modules, Industrial Automation.
Smart Transmitters
The AD5700-1BCPZ-R5 is ideal for smart transmitters in industrial process control. Its low power consumption of 0.86 mA typical allows operation on 4-20 mA loops, while the integrated oscillator reduces external component count. The device's HART FSK modulation enables digital communication over existing analog wiring, facilitating remote configuration and diagnostics. Its wide supply voltage range of 2.7V to 5.5V accommodates various loop power conditions, and the industrial temperature range of -40°C to +125°C ensures reliable operation in harsh environments.
Recommended
Valve Positioners
In valve positioners, the AD5700-1BCPZ-R5 provides reliable HART communication for remote monitoring and control. Its compact 24-lead LFCSP-WQ package fits space-constrained designs, while the integrated oscillator eliminates the need for an external crystal, simplifying PCB layout. The device's low power consumption is critical for loop-powered positioners, and its robust FSK modulation ensures reliable data transmission in noisy industrial environments. The UART interface simplifies connection to microcontrollers, enabling precise valve control and diagnostics.
Recommended
Flow Meters
The AD5700-1BCPZ-R5 is well-suited for flow meters requiring HART communication. Its low power consumption of 0.86 mA typical allows operation on 4-20 mA loops, and the integrated oscillator reduces component count, improving reliability. The device's wide supply voltage range and industrial temperature range make it suitable for various flow metering applications. The HART FSK modulation enables digital communication over existing analog wiring, allowing remote configuration and data logging. The compact package is ideal for space-constrained flow meter designs.
Recommended
HART Multiplexers
In HART multiplexers, the AD5700-1BCPZ-R5 enables communication with multiple HART devices over a single control system interface. Its low power consumption and small footprint allow dense packing of multiple modems on a single board. The integrated oscillator reduces external component count, simplifying design and improving reliability. The device's UART interface facilitates connection to a central processor, and its carrier detect output helps manage communication timing. The wide supply voltage range and industrial temperature range ensure reliable operation in process control environments.
Recommended
Gateway Modules
The AD5700-1BCPZ-R5 is used in gateway modules to bridge HART field devices with higher-level control systems. Its low power consumption and integrated oscillator make it ideal for compact gateway designs. The device's HART FSK modulation ensures reliable communication over long cable runs, and its UART interface simplifies integration with microcontrollers or processors. The wide supply voltage range and industrial temperature range support various industrial environments. The carrier detect output aids in managing communication timing, ensuring efficient data transfer.
Recommended
Industrial Automation
In industrial automation, the AD5700-1BCPZ-R5 provides reliable HART communication for various field devices. Its low power consumption of 0.86 mA typical is suitable for loop-powered devices, and the integrated oscillator reduces component count, improving reliability. The device's wide supply voltage range of 2.7V to 5.5V and industrial temperature range of -40°C to +125°C ensure operation in harsh environments. The compact 24-lead LFCSP-WQ package fits space-constrained designs, and the UART interface simplifies integration with microcontrollers. The device is designed to meet HART physical layer requirements, ensuring compatibility with existing HART networks.
Recommended
Recommended Products Summary
Engineering reference data for AD5700-1BCPZ-R5 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD5700-1BCPZ-RL7 | AD5700-1ACPZ | AD5700BCPZ-R5 | AD5700ACPZ-RL7 | HT5700 | HT1200M |
|---|---|---|---|---|---|---|---|
| Package | 24-Lead LFCSP-WQ (4x4 mm) | 24-Lead LFCSP-WQ (4x4 mm) | 24-Lead LFCSP-WQ (4x4 mm) | 24-Lead LFCSP-WQ (4x4 mm) | 24-Lead LFCSP-WQ (4x4 mm) | 24-Lead LFCSP-WQ (4x4 mm) | 24-Lead LFCSP-WQ (4x4 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Microcybers | Microcybers |
| Integrated Oscillator | Yes | Yes | Yes | No | No | Yes | Yes |
| Supply Voltage Range | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V | 2.7V to 5.5V |
| Data Rate | 1200 baud | 1200 baud | 1200 baud | 1200 baud | 1200 baud | 1200 baud | 1200 baud |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +85°C | -40°C to +125°C | -40°C to +85°C | -40°C to +125°C | -40°C to +125°C |
Key Differentiators
- Integrated oscillator eliminates external crystal (vs AD5700BCPZ-R5)
- Low power consumption of 0.86 mA typical (vs HT5700)
- Wide industrial temperature range of -40°C to +125°C (vs AD5700-1ACPZ)
Design Notes
Ensure proper decoupling of the VDD pin with a 0.1uF ceramic capacitor placed as close to the pin as possible. A 10uF bulk capacitor may be needed if the supply is noisy. The AD5700-1BCPZ-R5 operates from 2.7V to 5.5V, so verify the supply voltage is within this range to maintain oscillator accuracy and reliable HART communication.
Careful layout of the analog front-end is essential to minimize noise. Keep the MOD_IN and MOD_OUT traces short and shielded if possible. Use a ground plane to reduce interference. The integrated oscillator eliminates the need for an external crystal, but ensure the supply voltage is stable to maintain oscillator accuracy.
Do not exceed the maximum supply voltage of 5.5V. Ensure the UART interface is properly configured for 1200 baud. The carrier detect output should be monitored to manage communication timing. Avoid placing the device near high-frequency switching regulators without proper filtering, as this can degrade HART signal quality.
Compliance Information
ROHS3 compliant, REACH unaffected, MSL 3 (168 hours) per partgenie.ai analysis.
