Part A
AD7607BSTZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2040 PCS
- Package
- LQFP-64
- Series
- Data Acquisition - ADCs-DACs - Special Purpose
Replacement verdict
Compatible functional replacement candidate
The AD7607BSTZ is a viable functional replacement candidate for the AD7606BSTZ in many designs, sharing the same package, pinout, and 16-bit SAR architecture, but it is not a drop-in equivalent: the AD7607 offers 8 single-ended input channels versus 8 differential channels on the AD7606, and its maximum throughput is 500 kSPS versus 200 kSPS. Engineers must validate input configuration, sampling rate, and firmware scaling before substituting.
Input Configuration
Validation required
Sample Rate
Validation required
Package Type
High match
Resolution
High match
Parts at a glance
Part B
AD7606BSTZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4502 PCS
- Package
- LQFP-64
- Series
- Data Acquisition - ADCs-DACs - Special Purpose
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD7606BSTZ | AD7607BSTZ | Why it matters |
|---|---|---|---|
| Number of ADC Channels | 8 | 8 | Both devices provide 8 simultaneous-sampling channels, so channel count is not a differentiator for substitutability. |
| Resolution | 16 bits | 14 bits | Resolution determines the smallest signal change the ADC can resolve; the 16-bit AD7606 offers finer quantization than the 14-bit AD7607, affecting measurement accuracy. |
| Throughput Rate (max) | 200 kSPS | 200 kSPS | Maximum sampling rate affects how fast the system can acquire signals; identical rates mean timing performance is equivalent. |
| Input Voltage Range | ±5 V, ±10 V (selectable) | ±5 V, ±10 V (selectable) | Selectable bipolar input ranges allow direct interfacing with a variety of industrial sensors without external signal conditioning. |
| Supply Voltage | 5 V (analog and digital) | 5 V (analog and digital) | Single 5 V supply simplifies power design; matching supply requirements means the same power rail can be reused. |
| Integrated Input Clamp / Overvoltage Protection | Yes (up to ±16.5 V) | Yes (up to ±16.5 V) | On-chip clamp protection safeguards the ADC against overvoltage faults, reducing external protection components in industrial environments. |
| On-Chip Reference | Yes (2.5 V) | Yes (2.5 V) | An internal reference eliminates the need for an external voltage reference, saving board space and cost while ensuring consistent accuracy. |
| Package | 64-lead LQFP | 64-lead LQFP | Identical package and pinout allow drop-in replacement on an existing PCB layout without redesign. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Matching industrial temperature ranges ensure both parts are suitable for the same environmental conditions. |
| Interface | Parallel / Serial (SPI) | Parallel / Serial (SPI) | Flexible parallel or serial interface options allow connection to a wide range of host processors and FPGAs. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD7607BSTZ | AD7606BSTZ |
|---|---|---|
| Part Status | Active | Active |
| Type | Data Acquisition System (DAS), ADC | Data Acquisition System (DAS), ADC |
| Number of Channels | 8 | 8 |
| Resolution(Bits) | 14 b | 16 b |
| Sampling Rate(Per Second) | 200k | 200k |
| Data Interface | SPI, DSP | DSP, MICROWIRE™, Parallel, QSPI™, Serial, SPI™ |
| Voltage Supply Source | Analog and Digital | Analog and Digital |
| Voltage - Supply | 2.3V ~ 5.25V, 4.75V ~ 5.25V | 2.3V ~ 5.25V, 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AD7606BSTZ and AD7607BSTZ?
The AD7606BSTZ is an 8-channel, 16-bit bipolar simultaneous-sampling ADC, while the AD7607BSTZ is an 8-channel, 14-bit bipolar simultaneous-sampling ADC. Both share the same 64-lead LQFP package, pinout, and 5 V single-supply architecture, but the AD7606 provides 16-bit resolution versus 14-bit on the AD7607, yielding different SNR and dynamic range specifications.
Are the AD7606BSTZ and AD7607BSTZ pin-compatible?
Yes. Both devices are offered in the same 64-lead LQFP (STZ) package with an identical pinout, allowing a common PCB footprint. However, pin compatibility does not guarantee functional equivalence; resolution, performance specifications, and timing parameters differ and must be validated for the target design.
What is the resolution and throughput of each device?
The AD7606BSTZ provides 16-bit resolution with a maximum throughput of 200 kSPS per channel. The AD7607BSTZ provides 14-bit resolution with a maximum throughput of 200 kSPS per channel. Both convert all eight channels simultaneously.
Do both parts support the same analog input ranges?
Yes. Both the AD7606BSTZ and AD7607BSTZ support selectable bipolar input ranges of ±10 V and ±5 V, with a high input impedance of 1 MΩ, making them suitable for direct connection to industrial sensors and PLC-level signals.
What are the key AC performance differences between the two converters?
The AD7606BSTZ (16-bit) offers superior AC performance, with typical SNR of approximately 95.5 dB and THD of −107 dB. The AD7607BSTZ (14-bit) provides typical SNR of approximately 85.5 dB and THD of −95 dB. Designs requiring higher dynamic range or lower noise floor should select the AD7606.
Do both devices include an on-chip reference and analog front end?
Yes. Both the AD7606BSTZ and AD7607BSTZ integrate an on-chip 2.5 V reference, a reference buffer, and analog input clamp protection, along with a flexible parallel/serial digital interface. This integration reduces external component count for both parts.
Can the AD7607BSTZ be used as a drop-in replacement for the AD7606BSTZ?
Physically it can be placed on the same footprint, but it is not a functional drop-in replacement. The AD7607BSTZ provides 14-bit rather than 16-bit output data, so system firmware, data formatting, and any resolution-dependent calibration or accuracy budgets must be revalidated against the AD7607 datasheet before substitution.
What supply and interface requirements do both parts share?
Both devices operate from a single 5 V supply for the analog and digital sections, with an internal or external reference option, and support a flexible parallel or serial interface compatible with DSP and microcontroller hosts. Operating temperature range for the BSTZ grade is −40 °C to +85 °C for both parts.