AD7609BSTZ - 18-Bit 8-Ch Simultaneous Sampling ADC | Analog Devices
N.º da peça: AD7609BSTZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $52.63 | $52,63 |
| 10 | $48.5 | $485,00 |
| 100 | $42.1 | $4.210,00 |
| 500 | $36.8 | $18.400,00 |
| 1.000 | $33.2 | $33.200,00 |
AD7609BSTZ Visão geral
A data acquisition system (DAS) is a complete signal chain that conditions, samples, and converts analog signals into digital data. The AD7609BSTZ belongs to the family of simultaneous sampling ADCs, which capture multiple channels at the same instant to preserve phase relationships between signals. This is critical in applications like three-phase power monitoring and multi-axis motor control, where timing skew between channels would introduce measurement errors. The DAS integrates the entire analog front end, reducing external component count and simplifying design.
Key features include 18-bit resolution with no missing codes, 200 kSPS throughput on all channels, true differential inputs with a ±5 V or ±10 V range, and a 2.5 V internal reference with buffer. The device offers both serial (SPI/DSP) and parallel interfaces, and includes a digital filter for noise reduction. The input clamp protection tolerates voltages up to ±16.5 V, enhancing robustness in industrial environments.
The AD7609BSTZ uses a charge redistribution successive approximation architecture, which provides excellent linearity and low power consumption. The integrated antialiasing filter simplifies external filtering requirements, and the track-and-hold amplifiers ensure accurate sampling of fast-changing signals. The device operates over the industrial temperature range of -40°C to +85°C and is available in a 64-lead LQFP (10x10 mm) package.
Typical applications include power line monitoring, protective relays, motor control, and industrial data acquisition systems. The simultaneous sampling capability is essential for measuring three-phase voltages and currents with accurate phase alignment. The wide input range and robust protection make it suitable for harsh industrial environments.
When designing with the AD7609BSTZ, ensure proper decoupling of the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors. The REFIN/REFOUT pin can be driven by an external reference for improved accuracy. The digital interface supports both serial and parallel modes, selectable via the PAR/SER/BYTE pin. For best performance, use a low-jitter conversion clock and minimize digital noise coupling to the analog inputs.
Alternativas drop-in para AD7609BSTZ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com AD7609BSTZ (mesmo formato e footprint) — diferindo em Resolution, Input Type, Interface, Internal Reference, Antialiasing Filter.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
AD7606BSTZ
✅ Drop-In✓ Em estoque
$16.9 / unidade
Ver ficha técnica →AD7606BSTZ-RL
✅ Drop-In✓ Em estoque
$11.6 / unidade
Ver ficha técnica →AD7609BSTZ-RL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
AD7606C-16BSTZ-RL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
AD7608BSTZ
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$38.1818 / unidade
Ver ficha técnica →AD7609BSTZ Classificações máximas e características elétricas
| Resolução | 18 bits |
| Number of Channels | 8 |
| Input Type | True differential |
| Faixa de tensão de entrada | ±5 V or ±10 V |
| Throughput Rate | 200 kSPS |
| Tensão de alimentação | 5 V (single) |
| Internal Reference | 2.5 V |
| Input Clamp Protection | ±16.5 V |
| Analog Input Impedance | 1 MΩ |
| Interface | SPI, DSP, parallel |
| Encapsulamento | 64-LQFP (10x10 mm) |
| Faixa de temperatura de operação | -40°C to +85°C |
| Antialiasing Filter | Second-order |
| Architecture | Charge redistribution SAR |
| RoHS | Compliant |
Configuração de pinos do AD7609BSTZ
| Pino 1 | AVCC — Analog supply voltage (5 V) |
| Pino 2 | V1+ — Positive analog input channel 1 |
| Pino 3 | V1- — Negative analog input channel 1 |
| Pino 4 | V2+ — Positive analog input channel 2 |
| Pino 5 | V2- — Negative analog input channel 2 |
| Pino 6 | V3+ — Positive analog input channel 3 |
| Pino 7 | V3- — Negative analog input channel 3 |
| Pino 8 | V4+ — Positive analog input channel 4 |
| Pino 9 | V4- — Negative analog input channel 4 |
| Pino 10 | V5+ — Positive analog input channel 5 |
| Pino 11 | V5- — Negative analog input channel 5 |
| Pino 12 | V6+ — Positive analog input channel 6 |
| Pino 13 | V6- — Negative analog input channel 6 |
| Pino 14 | V7+ — Positive analog input channel 7 |
| Pino 15 | V7- — Negative analog input channel 7 |
| Pino 16 | V8+ — Positive analog input channel 8 |
| Pino 17 | V8- — Negative analog input channel 8 |
| Pino 18 | AGND — Analog ground |
| Pino 19 | REFIN/REFOUT — Reference input/output |
| Pino 20 | REFCAP — Reference buffer output |
| Pino 21 | REFSELECT — Reference select (high = internal, low = external) |
| Pino 22 | RANGE — Input range select (±5 V or ±10 V) |
| Pino 23 | CONVST A — Conversion start for channels 1-4 |
| Pino 24 | CONVST B — Conversion start for channels 5-8 |
| Pino 25 | BUSY — Busy output (high during conversion) |
| Pino 26 | FRSTDATA — First data output |
| Pino 27 | OS0 — Oversampling ratio bit 0 |
| Pino 28 | OS1 — Oversampling ratio bit 1 |
| Pino 29 | OS2 — Oversampling ratio bit 2 |
| Pino 30 | PAR/SER/BYTE — Parallel/serial/byte select |
| Pino 31 | STBY — Standby mode input |
| Pino 32 | CS — Chip select |
| Pino 33 | RD/SCLK — Read/Serial clock |
| Pino 34 | WR/DIN — Write/Serial data input |
| Pino 35 | DB0 — Parallel data bit 0 |
| Pino 36 | DB1 — Parallel data bit 1 |
| Pino 37 | DB2 — Parallel data bit 2 |
| Pino 38 | DB3 — Parallel data bit 3 |
| Pino 39 | DB4 — Parallel data bit 4 |
| Pino 40 | DB5 — Parallel data bit 5 |
| Pino 41 | DB6 — Parallel data bit 6 |
| Pino 42 | DB7 — Parallel data bit 7 |
| Pino 43 | DB8 — Parallel data bit 8 |
| Pino 44 | DB9 — Parallel data bit 9 |
| Pino 45 | DB10 — Parallel data bit 10 |
| Pino 46 | DB11 — Parallel data bit 11 |
| Pino 47 | DB12 — Parallel data bit 12 |
| Pino 48 | DB13 — Parallel data bit 13 |
| Pino 49 | DB14 — Parallel data bit 14 |
| Pino 50 | DB15 — Parallel data bit 15 |
| Pino 51 | DVCC — Digital supply voltage (5 V) |
| Pino 52 | DGND — Digital ground |
| Pino 53 | VDRIVE — Logic supply voltage |
| Pino 54 | RESET — Reset input |
| Pino 55 | DOUTA — Serial data output A |
| Pino 56 | DOUTB — Serial data output B |
| Pino 57 | DB16 — Parallel data bit 16 |
| Pino 58 | DB17 — Parallel data bit 17 |
| Pino 59 | DB18 — Parallel data bit 18 |
| Pino 60 | DB19 — Parallel data bit 19 |
| Pino 61 | DB20 — Parallel data bit 20 |
| Pino 62 | DB21 — Parallel data bit 21 |
| Pino 63 | DB22 — Parallel data bit 22 |
| Pino 64 | DB23 — Parallel data bit 23 |
Aplicações típicas
AD7609BSTZ é adequado para 6 aplicaçãos: Power Line Monitoring, Motor Control, Industrial Data Acquisition, Protective Relays, Three-Phase Power Quality Analysis, Multi-Axis Motion Control.
Power Line Monitoring
The AD7609BSTZ is ideal for power line monitoring due to its 8-channel simultaneous sampling capability and 18-bit resolution. It can measure three-phase voltages and currents with accurate phase alignment, which is critical for protective relays and power quality analysis. The wide input range (±5 V or ±10 V) and robust input protection (±16.5 V) handle the transients common in power systems. The 200 kSPS throughput ensures fast response to grid events, while the integrated antialiasing filter simplifies the analog front end. According to the AD7609 datasheet, the device's high input impedance (1 MΩ) eliminates the need for driver op amps, reducing component count and board space.
Recomendado
Motor Control
The AD7609BSTZ is well-suited for motor control applications, particularly field-oriented control (FOC) of AC motors. Its 8-channel simultaneous sampling capability allows precise measurement of multiple phase currents and voltages simultaneously, which is essential for accurate torque and speed control. The 18-bit resolution provides high precision, while the 200 kSPS throughput supports fast control loops. The true differential inputs reject common-mode noise, improving measurement accuracy in noisy industrial environments. According to the AD7609 datasheet, the device's integrated antialiasing filter and high input impedance simplify the analog front end, reducing design complexity and cost.
Recomendado
Industrial Data Acquisition
The AD7609BSTZ is a complete data acquisition system (DAS) that integrates the entire analog front end, making it ideal for industrial data acquisition applications. It features 8 true differential input channels with ±5 V or ±10 V ranges, 18-bit resolution, and 200 kSPS throughput. The device includes input clamp protection up to ±16.5 V, a second-order antialiasing filter, and a 2.5 V internal reference. According to the AD7609 datasheet, the high input impedance (1 MΩ) eliminates the need for external driver op amps, simplifying design. The serial and parallel interfaces provide flexibility for connecting to various microcontrollers and DSPs.
Recomendado
Protective Relays
The AD7609BSTZ is designed for protective relays in power systems, where accurate and simultaneous measurement of voltage and current is critical. Its 8-channel simultaneous sampling capability ensures phase alignment between channels, which is essential for calculating power and detecting faults. The 18-bit resolution provides high accuracy, while the 200 kSPS throughput enables fast response to transient events. The device's input clamp protection (±16.5 V) and wide input range (±5 V or ±10 V) handle the harsh conditions of power systems. According to the AD7609 datasheet, the integrated antialiasing filter and high input impedance simplify the analog front end, reducing component count and improving reliability.
Recomendado
Three-Phase Power Quality Analysis
The AD7609BSTZ is ideal for three-phase power quality analysis, where simultaneous sampling of multiple voltage and current channels is required to accurately compute power parameters such as active power, reactive power, and harmonics. The device's 8 channels can measure three-phase voltages and currents simultaneously, preserving phase relationships. The 18-bit resolution and 200 kSPS throughput provide the accuracy and speed needed for detailed harmonic analysis. According to the AD7609 datasheet, the true differential inputs reject common-mode noise, improving measurement accuracy in industrial environments. The integrated antialiasing filter simplifies external filtering, reducing design complexity.
Recomendado
Multi-Axis Motion Control
The AD7609BSTZ is suitable for multi-axis motion control systems, where simultaneous sampling of position and current feedback signals is essential for coordinated motion. Its 8-channel simultaneous sampling capability allows precise measurement of multiple axes at the same instant, ensuring accurate synchronization. The 18-bit resolution provides high precision, while the 200 kSPS throughput supports fast control loops. The true differential inputs reject common-mode noise, improving measurement accuracy in noisy industrial environments. According to the AD7609 datasheet, the device's integrated antialiasing filter and high input impedance simplify the analog front end, reducing design complexity and cost.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para AD7609BSTZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | AD7606BSTZ | AD7606BSTZ-RL | AD7609BSTZ-RL | AD7606C-16BSTZ-RL | AD7608BSTZ |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 18 bits | 16 bits | 16 bits | 18 bits | 16 bits | 14 bits |
| Number of Channels | 8 | 8 | 8 | 8 | 8 | 8 |
| Throughput Rate | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS |
| Input Voltage Range | ±5 V or ±10 V | ±5 V or ±10 V | ±5 V or ±10 V | ±5 V or ±10 V | ±5 V or ±10 V | ±5 V or ±10 V |
| Interface | SPI, DSP, parallel | SPI, DSP, parallel | SPI, DSP, parallel | SPI, DSP, parallel | SPI, DSP, parallel | SPI, DSP, parallel |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
Principais diferenciais
- 18-bit resolution with 8 simultaneous sampling channels (vs AD7606BSTZ)
- True differential inputs with ±16.5 V clamp protection (vs AD7608BSTZ)
- 200 kSPS throughput on all channels simultaneously (vs AD7606C-16BSTZ-RL)
Notas de projeto
Decouple the AVCC and DVCC supplies with 10 µF and 0.1 µF capacitors placed close to the pins. Use a low-impedance ground plane to minimize noise coupling. The AD7609BSTZ operates from a single 5 V supply, simplifying power design. According to the AD7609 datasheet, proper decoupling is essential for achieving the specified 18-bit performance.
Place the AD7609BSTZ on a PCB with a solid ground plane and separate analog and digital ground areas. Keep analog input traces short and shielded to minimize noise pickup. The device's high input impedance (1 MΩ) reduces the need for driver op amps, but proper layout is still critical for maintaining signal integrity. According to the AD7609 datasheet, the input clamp protection tolerates voltages up to ±16.5 V, providing robustness in industrial environments.
Ensure the REF SELECT pin is set correctly: high for internal reference, low for external. If using an external reference, apply it to the REFIN pin. The RANGE pin selects ±5 V or ±10 V input range; set it according to your signal levels. According to the AD7609 datasheet, the PAR/SER/BYTE pin selects the interface mode; ensure it is configured correctly for your microcontroller. Avoid exceeding the absolute maximum ratings on any pin.
Informações de conformidade
RoHS compliance confirmed by distributor listings. Other compliance data not explicitly stated in the provided data.
