AD7616 Replacement: GX7616 Fully Hardware and Software Compatible 16-Bit SAR ADC
GX7616 is developed as a direct alternative to AD7616 for multichannel data acquisition and industrial monitoring systems. Its compatible pinout, LQFP-80 package, input architecture and digital interfaces support device replacement without redesigning the existing PCB.
The device operates from a 5 V analog supply and supports independently selectable ±10 V, ±5 V and ±2.5 V true bipolar input ranges. Parallel and SPI-compatible serial interfaces allow existing processor or FPGA control and acquisition software to be retained.
GX7616 as a Direct AD7616 Replacement
GX7616 provides 16 single-ended analog input channels and two simultaneously sampled 16-bit SAR ADCs with throughput rates of up to 1 MSPS.
For existing AD7616-based products, the compatible package, pin configuration and interface architecture help preserve the original schematic, PCB and system structure. GX7616 is also suitable for new industrial measurement, protection and multichannel acquisition designs.
Pin-to-Pin Hardware and Software Compatibility with AD7616
GX7616 is designed for pin-to-pin hardware compatibility with AD7616. Existing LQFP-80 footprints, analog input connections, power architecture and parallel or serial data interfaces can be retained.
It also supports software and interface compatibility with AD7616-based systems. Existing MCU, DSP or FPGA acquisition logic, interface timing and configuration software can be reused when migrating to GX7616.
This compatibility helps eliminate changes to the schematic, PCB, processor interface and control software while reducing replacement verification work.
GX7616 vs AD7616: Key Specification Comparison
|
Specification |
AD7616 |
GX7616 |
|
Resolution |
16-bit |
16-bit |
|
Analog Input Channels |
16 |
16 |
|
ADC Architecture |
Dual SAR ADC |
Dual SAR ADC |
|
Sampling Operation |
Dual Simultaneous Sampling |
Dual Simultaneous Sampling |
|
Maximum Throughput |
2 × 1 MSPS |
2 × 1 MSPS |
|
Input Type |
Single-Ended, True Bipolar |
Single-Ended, True Bipolar |
|
Input Ranges |
±10 V / ±5 V / ±2.5 V |
±10 V / ±5 V / ±2.5 V |
|
Analog Supply |
5 V |
5 V |
|
VDRIVE Range |
2.3–3.6 V |
2.3–5 V |
|
SNR at 1 MSPS |
90.5 dB |
89 dB |
|
Input Impedance |
1 MΩ |
1 MΩ |
|
Input Clamp Protection |
Up to ±21 V |
Up to ±22 V |
|
Antialiasing Filter |
First-Order |
Second-Order |
|
Oversampling |
Yes |
Yes |
|
Data Interface |
Parallel / Serial |
Parallel / SPI-Compatible Serial |
|
Package |
LQFP-80 |
LQFP-80 |
|
Operating Temperature |
−40°C to +85°C |
−40°C to +125°C |
|
Pin-to-Pin Compatible |
— |
Yes |
|
Schematic or PCB Changes Required |
— |
No |
|
Processor Interface Changes Required |
— |
No |
|
Software Modification Required |
— |
No |
Multichannel Data Acquisition Features and Applications
Key GX7616 features include:
l 16 true bipolar, single-ended input channels
l Dual simultaneous 16-bit SAR ADCs
l Up to 1 MSPS throughput
l ±10 V, ±5 V and ±2.5 V input ranges
l 89 dB SNR with on-chip oversampling support
l 1 MΩ input impedance
l ±22 V input clamp protection
l Integrated second-order antialiasing filters
l Integrated reference generator and buffer
l Parallel and SPI-compatible serial interfaces
l −40°C to +125°C operating temperature range
GX7616 is suitable for power-line monitoring, protective relays, multiphase motor control, instrumentation, industrial control and multichannel data acquisition systems.
Supply and Technical Support
GXSC can provide samples, compatibility verification and technical assistance for both AD7616 replacement projects and new data acquisition designs.
Request GX7616 Datasheet and Samples
Contact GXSC to request the GX7616 datasheet, samples, quotation or technical support for your AD7616 replacement or new system design.
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