AD5700-1ACPZ - HART FSK Modem IC | Analog Devices
MPN: AD5700-1ACPZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.03 | $7.03 |
| 10 | $6.32 | $63.20 |
| 100 | $5.52 | $552.00 |
| 500 | $4.98 | $2,490.00 |
| 1,000 | $4.45 | $4,450.00 |
Drop-in alternatives for AD5700-1ACPZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD5700-1BCPZ
✅ Drop-In✓ In Stock
$5.6 / Unit
View Datasheet →AD5700-1BCPZ-RL7
✅ Drop-In✓ In Stock
$8.25 / Unit
View Datasheet →AD5700-1BCPZ-R5
✅ Drop-In✓ In Stock
$5.5 / Unit
View Datasheet →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)
AD5700-1ACPZ Maximum Ratings & Electrical Characteristics
| Function | HART FSK Half-Duplex Modem |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Maximum Supply Current | 115 µA |
| Operating Temperature Range | -40°C to +125°C |
| Package | 24-LFCSP-WQ (4x4 mm) |
| Integrated Oscillator | 0.5% precision |
| Modulation | FSK (1200 Hz / 2200 Hz) |
| Interface | UART |
| Carrier Detect | Yes |
| Internal Voltage Reference | Yes |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
| Number of Pins | 24 |
| Supply Current (Typical) | 86 µA |
| HART Compliance | HART Physical Layer |
AD5700-1ACPZ Pin Configuration
| Pin 1 | VDD — Power supply input |
| Pin 2 | GND — Ground |
| Pin 3 | RXD — Receive data input |
| Pin 4 | TXD — Transmit data output |
| Pin 5 | CD — Carrier detect output |
| Pin 6 | RTS — Request to send input |
| Pin 7 | CTS — Clear to send output |
| Pin 8 | CLK — Clock input/output |
| Pin 9 | XIN — Crystal input |
| Pin 10 | XOUT — Crystal output |
| Pin 11 | VREF — Voltage reference output |
| Pin 12 | VBIAS — Bias voltage output |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD5700-1ACPZ is suitable for 6 applications: Smart Transmitters, Process Control Systems, Field Instruments, HART Master Systems, Loop-Powered Devices, Industrial Communication Interfaces.
Smart Transmitters
The AD5700-1ACPZ is ideal for smart transmitters used in industrial process control. Its low supply current of 115 µA and integrated 0.5% precision oscillator make it perfect for loop-powered devices where power is limited. The HART FSK modem enables digital communication over the existing 4-20 mA analog loop, allowing configuration and diagnostics without additional wiring. The device's compliance with HART physical layer ensures reliable data transmission in noisy industrial environments. With a wide operating temperature range of -40°C to +125°C, it can withstand harsh conditions. The compact 24-lead LFCSP package fits into space-constrained transmitter designs.
Recommended
Process Control Systems
In process control systems, the AD5700-1ACPZ provides a reliable HART communication interface between field instruments and control room equipment. Its half-duplex FSK modem operates at 1200 Hz and 2200 Hz, enabling digital data transmission over analog loops. The device's low power consumption is crucial for loop-powered field devices, ensuring minimal impact on the loop current. The integrated oscillator reduces external component count, simplifying design and improving reliability. The device supports both master and slave configurations, making it versatile for various system architectures. Its robust performance over -40°C to +125°C ensures operation in demanding industrial environments.
Recommended
Field Instruments
The AD5700-1ACPZ is well-suited for field instruments such as pressure, temperature, and flow transmitters. Its ultra-low supply current of 115 µA allows it to be powered directly from the 4-20 mA loop, eliminating the need for separate power supplies. The integrated 0.5% precision oscillator ensures accurate FSK modulation without external components, reducing board space and cost. The device's HART compliance guarantees interoperability with existing HART networks. The compact LFCSP package is ideal for miniaturized instrument designs. With a wide temperature range, it can be deployed in outdoor and harsh environments. The UART interface simplifies connection to microcontrollers.
Recommended
HART Master Systems
The AD5700-1ACPZ can be used in HART master systems such as handheld communicators and control room equipment. Its low power consumption and integrated oscillator make it suitable for battery-powered handheld devices. The device supports both master and slave modes, allowing it to initiate communication with field devices. The carrier detect output helps in monitoring the HART signal presence. The UART interface enables easy integration with microcontrollers. The device's compliance with HART physical layer ensures reliable communication with a wide range of HART-enabled instruments. The compact package is ideal for portable designs.
Recommended
Loop-Powered Devices
The AD5700-1ACPZ is specifically designed for loop-powered devices where power is limited to the 4-20 mA loop. Its maximum supply current of 115 µA ensures minimal impact on the loop current, allowing more power for other components. The integrated 0.5% precision oscillator eliminates the need for an external crystal, reducing power consumption and component count. The device's low power operation is critical for maintaining loop integrity. The HART modem enables digital communication without affecting the analog signal. The wide operating temperature range makes it suitable for various industrial applications. The compact package fits into small form-factor devices.
Recommended
Industrial Communication Interfaces
The AD5700-1ACPZ serves as a key component in industrial communication interfaces, enabling HART protocol over 4-20 mA loops. Its integrated functions reduce external component count, simplifying design and improving reliability. The device's low power consumption is beneficial for multi-channel systems where power dissipation is a concern. The UART interface allows seamless connection to microcontrollers and PLCs. The device's compliance with HART physical layer ensures interoperability with existing infrastructure. The compact LFCSP package is suitable for modular interface cards. The wide temperature range supports operation in industrial cabinets and field enclosures.
Recommended
Recommended Products Summary
Engineering reference data for AD5700-1ACPZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD5700-1BCPZ | AD5700-1BCPZ-RL7 | AD5700-1BCPZ-R5 | AD5700ACPZ-RL7 | HT5700 | HT1200M |
|---|---|---|---|---|---|---|---|
| Package | 24-LFCSP-WQ (4x4 mm) | 24-LFCSP-WQ (4x4 mm) | 24-LFCSP-WQ (4x4 mm) | 24-LFCSP-WQ (4x4 mm) | 24-LFCSP-WQ (4x4 mm) | 24-LFCSP-WQ (4x4 mm) | 24-LFCSP-WQ (4x4 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Microcybers | Microcybers |
| Integrated Oscillator | Yes (0.5%) | Yes (0.5%) | Yes (0.5%) | Yes (0.5%) | No | Yes | Yes |
| Supply Current (Max) | 115 µA | 115 µA | 115 µA | 115 µA | 115 µA | [DATA_NEEDED] | [DATA_NEEDED] |
| 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 | [DATA_NEEDED] | [DATA_NEEDED] |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | [DATA_NEEDED] | [DATA_NEEDED] |
| HART Compliance | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Price (1pc) | $7.03 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Integrated 0.5% precision oscillator (vs AD5700ACPZ-RL7)
- Low power consumption (vs HT5700)
- Proven HART compliance (vs HT1200M)
Design Notes
The AD5700-1ACPZ operates from 2.7V to 5.5V. Use a low-dropout regulator to provide a clean supply voltage, and place a 0.1 µF ceramic capacitor close to the VDD pin. For loop-powered applications, ensure the supply current does not exceed the loop budget; the device's 115 µA maximum is well within typical 4-20 mA loop budgets.
For optimal performance, keep the analog front-end traces short and shielded. Place the coupling capacitor and protection components close to the HART signal pins. Use a ground plane to minimize noise. The LFCSP package has an exposed pad; solder it to the PCB ground for thermal and electrical performance.
Ensure the UART interface is correctly configured for the HART baud rate (1200 bps). Do not exceed the absolute maximum ratings on any pin. For the AD5700-1 variant, the integrated oscillator eliminates the need for an external crystal, but if using the AD5700, a crystal must be provided. Verify the HART signal levels with an oscilloscope during prototyping.
Compliance Information
RoHS compliance confirmed from datasheet and distributor listings. Other compliance data not explicitly stated in the provided data.
