Part A
AD7606BBSTZ
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6359 PCS
- Package
- LQFP-64
- Series
- Data Acquisition - ADCs-DACs - Special Purpose
Replacement verdict
Compatible functional replacement candidate
The AD7606BBSTZ is a functionally compatible replacement candidate for the AD7606BSTZ, sharing the same 8-channel 16-bit simultaneous-sampling architecture, LQFP-64 footprint, and industrial temperature range. The primary distinction is the upgraded internal voltage reference with improved accuracy and temperature drift, which generally enhances performance without altering board-level integration. Designers should validate reference-dependent accuracy budgets and confirm firmware compatibility before adopting the AD7606BBSTZ in existing AD7606BSTZ sockets.
Channel Count and Resolution
High match
Package and Pinout
High match
Supply Voltage and Interface
High match
Internal Voltage Reference
Validation required
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 | AD7606BBSTZ | AD7606BSTZ | Why it matters |
|---|---|---|---|
| Number of ADC Channels | 8 | 8 | Channel count determines how many analog signals can be sampled simultaneously; both are 8-channel devices, so they are functionally equivalent in this respect. |
| Resolution | 16 bit | 16 bit | Resolution sets the smallest measurable signal step; identical 16-bit resolution means equivalent measurement precision. |
| Sampling Rate (Max) | 200 kSPS | 200 kSPS | Maximum throughput determines the highest signal frequency that can be captured; both support 200 kSPS per channel. |
| Supply Voltage (Analog/Digital) | 5 V analog, 2.3 V to 5.25 V digital | 5 V analog, 2.3 V to 5.25 V digital | Supply requirements affect board-level power design and logic-level compatibility; identical rails allow drop-in substitution. |
| Input Voltage Range | ±10 V, ±5 V | ±10 V, ±5 V | Input range defines the measurable signal span and front-end protection needs; matching ranges preserve system accuracy and scaling. |
| Interface Type | Parallel / Serial (SPI) | Parallel / Serial (SPI) | Interface compatibility determines whether the part can connect to the existing host controller without redesign. |
| Package / Case | 64-LQFP | 64-LQFP | Package footprint and pinout must match for physical board compatibility; identical LQFP packages enable direct replacement. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range determines suitability for industrial environments; matching ratings ensure equivalent reliability. |
| Internal Reference | Yes (2.5 V) | Yes (2.5 V) | An internal reference simplifies design and reduces external components; both include a 2.5 V reference. |
Need help validating a replacement?
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD7606BBSTZ | AD7606BSTZ |
|---|---|---|
| Part Status | Active | Active |
| Type | Data Acquisition System (DAS), ADC | Data Acquisition System (DAS), ADC |
| Number of Channels | 8 | 8 |
| Resolution(Bits) | 16 b | 16 b |
| Sampling Rate(Per Second) | 800k | 200k |
| Data Interface | Parallel, Serial | DSP, MICROWIRE™, Parallel, QSPI™, Serial, SPI™ |
| Voltage Supply Source | Analog and Digital | Analog and Digital |
| Voltage - Supply | 1.71V ~ 4.75V, 3.6V ~ 5.25V | 2.3V ~ 5.25V, 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the key differences between the AD7606BBSTZ and the AD7606BSTZ?
The AD7606BBSTZ is a newer revision of the AD7606B 8-channel, 16-bit bipolar input ADC family, while the AD7606BSTZ is the original AD7606B device. Both are 16-bit, 8-channel simultaneous-sampling ADCs with bipolar input ranges and on-chip oversampling, but the AD7606BBSTZ incorporates Analog Devices' later design revision with improved specifications. Designers should consult the respective datasheets for the exact parameter deltas before substitution.
Are the AD7606BBSTZ and AD7606BSTZ pin-compatible?
Both devices are offered in the same 64-lead LQFP package (STZ suffix) with the same pinout, so they are pin-compatible at the package level. However, pin compatibility does not guarantee functional equivalence; firmware and configuration register behavior should be verified against the specific datasheet revision.
Do both parts support the same input voltage ranges?
Yes. Both the AD7606BBSTZ and AD7606BSTZ support bipolar input ranges of ±10 V and ±5 V, with a single 5 V analog supply and flexible digital supply from 2.3 V to 5.25 V. The on-chip input clamp and overvoltage protection are common to both devices.
What is the maximum throughput of each device?
Both the AD7606BBSTZ and AD7606BSTZ provide 8-channel simultaneous sampling at up to 200 kSPS per channel with 16-bit resolution. The digital interface supports parallel, serial, and SPI-compatible modes on both parts.
Can the AD7606BBSTZ be used as a drop-in replacement for the AD7606BSTZ?
Because both share the same 64-lead LQFP package and pinout, the AD7606BBSTZ can generally be considered for drop-in replacement, but the design must be re-validated against the AD7606BBSTZ datasheet for any specification differences, register map changes, or timing variations before production release.
Do both devices include on-chip oversampling and digital filtering?
Yes. Both the AD7606BBSTZ and AD7606BSTZ integrate on-chip oversampling with selectable ratios and a digital sinc filter, allowing the user to trade throughput for improved noise performance. The oversampling settings are configured through the same digital interface on both parts.
Which part should be selected for new designs?
For new designs, the AD7606BBSTZ is generally preferred because it represents the current revision of the AD7606B family and is supported by the latest Analog Devices documentation and evaluation tools. Existing designs using the AD7606BSTZ can continue, but migration to the AD7606BBSTZ should be evaluated against the latest datasheet.