AD7606BSTZ - 16-Bit 8-Ch Simultaneous ADC | Analog Devices
MPN: AD7606BSTZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $23.18 | $23.18 |
| 10 | $21.5 | $215.00 |
| 100 | $19.8 | $1,980.00 |
| 500 | $18.2 | $9,100.00 |
| 1,000 | $16.9 | $16,900.00 |
AD7606BSTZ Overview
A data acquisition system (DAS) is a complete signal chain that conditions, samples, and digitizes analog signals. The AD7606BSTZ belongs to the family of simultaneous sampling ADCs, which capture multiple channels at the same instant, preserving phase relationships critical for power metering and vibration analysis. It sits between analog sensors and a digital host processor, converting real-world signals into digital words for processing.
Key features include 16-bit resolution, 200 kSPS throughput per channel, 8 simultaneous sampling channels, and a 64-lead LQFP package. The device offers a parallel, serial, SPI, QSPI, and MICROWIRE interface, providing flexibility for various host controllers. The integrated 2.5V reference and buffer eliminate the need for external reference components, simplifying design and reducing BOM cost.
Technically, the AD7606BSTZ uses a successive approximation register (SAR) architecture with a charge redistribution DAC. The analog front end includes a second-order antialiasing filter with a cutoff frequency of 22 kHz, which attenuates out-of-band noise. The digital filter provides programmable oversampling ratios to further reduce noise. The device operates over the industrial temperature range of -40°C to +85°C and is available in a 10x10 mm LQFP package.
Typical applications include power-line monitoring, protective relays, motor control, and multi-axis vibration analysis. The simultaneous sampling capability ensures accurate phase measurement between voltage and current channels, which is essential for power quality analysis. The high input impedance and integrated protection make it robust for harsh industrial environments.
When designing with the AD7606BSTZ, ensure proper decoupling of the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors placed close to the pins. The REFIN/REFOUT pin can be driven by an external reference if higher accuracy is required, but the internal 2.5V reference is sufficient for most applications. The CONVST pins should be driven simultaneously to achieve true simultaneous sampling.
Drop-in alternatives for AD7606BSTZ — 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 AD7606BSTZ (same form factor and footprint) — differing in Input Type, Number of Channels, Input Voltage Range, Architecture, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD7606BSTZ-4
✅ Drop-In✓ In Stock
$11.6 / Unit
View Datasheet →AD7606BSTZ-6RL
✅ Drop-In✓ In Stock
$29.8 / Unit
View Datasheet →AD7606BSTZ-RL
✅ Drop-In✓ In Stock
$11.6 / Unit
View Datasheet →AD7606BSTZ-4RL
✅ Drop-In✓ In Stock
$9.55 / Unit
View Datasheet →AD7606B
⚡ Same Package📋 Reference alternative (not in catalog)
AD7606BSTZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 bit |
| Sampling Rate | 200 kSPS per channel |
| Number of Channels | 8 |
| Input Type | Single-ended, bipolar |
| Input Voltage Range | ±5 V, ±10 V |
| Data Interface | Parallel, Serial, SPI, QSPI, MICROWIRE |
| Supply Voltage | 5 V (AVCC), 2.3 V to 5 V (VDRIVE) |
| Reference Voltage | 2.5 V internal |
| Antialiasing Filter | Second-order, 22 kHz cutoff |
| Input Impedance | 1 MΩ |
| Operating Temperature Range | -40°C to +85°C |
| Package | 64-LQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
AD7606BSTZ Pin Configuration
| Pin 1 | AVCC — Analog power supply (5V) |
| Pin 2 | V1 — Analog input channel 1 |
| Pin 3 | V2 — Analog input channel 2 |
| Pin 4 | V3 — Analog input channel 3 |
| Pin 5 | V4 — Analog input channel 4 |
| Pin 6 | V5 — Analog input channel 5 |
| Pin 7 | V6 — Analog input channel 6 |
| Pin 8 | V7 — Analog input channel 7 |
| Pin 9 | V8 — Analog input channel 8 |
| Pin 10 | AGND — Analog ground |
| Pin 11 | REFIN/REFOUT — Reference input/output |
| Pin 12 | REFCAP — Reference buffer output |
| Pin 13 | RANGE — Input range select (±5V or ±10V) |
| Pin 14 | CONVST A — Conversion start for channels 1-4 |
| Pin 15 | CONVST B — Conversion start for channels 5-8 |
| Pin 16 | BUSY — Busy output indicating conversion in progress |
| Pin 17 | CS — Chip select |
| Pin 18 | SCLK — Serial clock input |
| Pin 19 | DOUT — Serial data output |
| Pin 20 | VDRIVE — Digital interface supply voltage |
Typical Applications
AD7606BSTZ is suitable for 6 applications: Power-Line Monitoring, Protective Relays, Motor Control, Multi-Axis Vibration Analysis, Data Acquisition Systems, Industrial Automation.
Power-Line Monitoring
The AD7606BSTZ is ideal for power-line monitoring systems that require simultaneous sampling of voltage and current channels to accurately measure power quality parameters such as phase, harmonics, and power factor. With 8 channels, 16-bit resolution, and 200 kSPS sampling rate, it can capture multiple phases and neutral currents simultaneously. The integrated antialiasing filter and 1 MΩ input impedance simplify the front-end design, while the bipolar input range of ±10V directly interfaces with voltage and current transformers. The device's high accuracy and low noise ensure reliable measurement of power consumption and grid stability.
Recommended
Protective Relays
In protective relays, the AD7606BSTZ provides simultaneous sampling of multiple current and voltage inputs, enabling fast and accurate fault detection. The 16-bit resolution and 200 kSPS sampling rate allow precise measurement of transient waveforms, while the integrated clamp protection safeguards the ADC from overvoltage conditions. The device's wide operating temperature range (-40°C to +85°C) ensures reliable operation in harsh substation environments. The parallel and serial interfaces facilitate easy connection to relay microcontrollers, and the internal reference reduces external component count, improving system reliability.
Recommended
Motor Control
The AD7606BSTZ is well-suited for motor control applications that require simultaneous sampling of phase currents and voltages for precise torque and speed control. With 8 channels, it can monitor all three phases plus neutral and DC bus voltage. The 16-bit resolution and 200 kSPS sampling rate provide high fidelity for current loop control, while the bipolar input range accommodates both positive and negative current sense signals. The device's fast conversion time and low latency enable real-time control algorithms, and the integrated antialiasing filter reduces noise from PWM switching. The compact 64-LQFP package fits into space-constrained motor drives.
Recommended
Multi-Axis Vibration Analysis
For multi-axis vibration analysis, the AD7606BSTZ captures simultaneous samples from multiple accelerometers or vibration sensors, preserving phase relationships essential for modal analysis and condition monitoring. The 8-channel capability allows monitoring of tri-axial accelerometers on multiple machine points. The 16-bit resolution and 200 kSPS sampling rate capture high-frequency vibration signatures, while the low noise and high PSRR ensure accurate measurement in electrically noisy industrial environments. The device's serial interface simplifies data transfer to a host processor for FFT analysis, and the internal reference reduces component count in multi-channel systems.
Recommended
Data Acquisition Systems
The AD7606BSTZ is a complete data acquisition system (DAS) that integrates signal conditioning, sampling, and digitization in a single package. It is ideal for general-purpose DAQ systems used in test and measurement, laboratory instrumentation, and industrial automation. The 8-channel simultaneous sampling capability allows accurate capture of multi-channel analog signals, while the 16-bit resolution provides high dynamic range. The device's flexible interface options (parallel, serial, SPI) make it easy to integrate with various host controllers. The integrated reference and antialiasing filter reduce external components, simplifying PCB design and reducing time-to-market.
Recommended
Industrial Automation
In industrial automation, the AD7606BSTZ provides accurate, simultaneous sampling of multiple analog signals such as temperature, pressure, and flow from sensors. The 8-channel input capability allows monitoring of multiple process variables, while the 16-bit resolution ensures high measurement accuracy. The device's robust design, including input clamp protection and wide temperature range, makes it suitable for harsh factory environments. The parallel and serial interfaces enable easy connection to PLCs and industrial controllers. The integrated reference and antialiasing filter reduce external component count, improving system reliability and reducing maintenance costs.
Recommended
Recommended Products Summary
Engineering reference data for AD7606BSTZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7606BSTZ-4 | AD7606BSTZ-6 | AD7606BSTZ-RL | AD7606BSTZ-4RL | AD7606B |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Channels | 8 | 4 | 6 | 8 | 4 | 8 |
| Sampling Rate | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS | 800 kSPS |
| Input Impedance | 1 MΩ | 1 MΩ | 1 MΩ | 1 MΩ | 1 MΩ | 5 MΩ |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +125°C |
| Data Interface | Parallel, Serial, SPI, QSPI, MICROWIRE | Parallel, Serial, SPI, QSPI, MICROWIRE | Parallel, Serial, SPI, QSPI, MICROWIRE | Parallel, Serial, SPI, QSPI, MICROWIRE | Parallel, Serial, SPI, QSPI, MICROWIRE | Parallel, Serial, SPI, QSPI, MICROWIRE |
| Internal Reference | Yes (2.5V) | Yes (2.5V) | Yes (2.5V) | Yes (2.5V) | Yes (2.5V) | Yes (2.5V) |
Key Differentiators
- 8-channel simultaneous sampling (vs AD7606BSTZ-4)
- Higher sampling rate (vs AD7606BSTZ-6)
- Pin-to-pin compatible with -4 and -6 variants (vs AD7606B)
Design Notes
Decouple the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors placed as close to the pins as possible. The AVCC supply should be clean and stable, as noise on the analog supply directly affects conversion accuracy. Use a low-noise LDO regulator to power AVCC if the system has switching regulators. The VDRIVE pin should be connected to the same supply as the host interface logic to ensure proper voltage levels.
Place the AD7606BSTZ on a PCB with a solid ground plane. Separate analog and digital ground planes and connect them at a single point near the ADC. Keep analog input traces short and shielded to minimize noise pickup. Use a ground plane under the analog input section to reduce parasitic capacitance. The REFIN/REFOUT pin should have a 10 µF capacitor to ground for stability.
Ensure the CONVST A and CONVST B pins are driven simultaneously to achieve true simultaneous sampling. If they are driven separately, the samples will not be aligned in time, which can cause phase errors in multi-channel measurements. Also, avoid exceeding the absolute maximum ratings on the analog inputs, as the internal clamp protection has limits. Use series resistors to limit current if overvoltage is expected.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. REACH and conflict minerals status not specified in provided data.
