規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Number of Bits | 12 |
| Sampling Rate(Per Second) | 1M |
| Number of Inputs | 8 |
| Input Type | Single Ended |
| Data Interface | SPI |
| Configuration | MUX-S/H-ADC |
| Ratio - S / H: ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | SAR |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 2.7V ~ 5.25V |
| Voltage - Supply, Digital | 1.65V ~ 5.25V |
| Features | Temperature Sensor |
| Operating Temperature | -40°C ~ 125°C |
| Supplier Device Package | 24-VQFN (4x4) |
概述
Description
The ADS8638SRGER is a 16-bit, 8-channel, successive approximation register (SAR) analog-to-digital converter (ADC) from Texas Instruments. It features a wide input range (±12.288V, ±6.144V, ±3.072V, or 0–12.288V), selectable per channel, and operates at 1MSPS.
Key features include:
- High accuracy (INL: ±1 LSB, SNR: 92dB).
- Integrated reference and buffer for simplified design.
- SPI-compatible interface for easy microcontroller communication.
- Low power consumption (10.5mW at 1MSPS).
Housed in a 24-pin VQFN (RGE) package, it’s ideal for industrial automation, power monitoring, and data acquisition systems. The device supports bipolar/unipolar inputs and includes auto-scan modes for efficient multi-channel sampling.
For detailed specs, refer to the datasheet (SBAS586) on TI’s website.
Key features include:
- High accuracy (INL: ±1 LSB, SNR: 92dB).
- Integrated reference and buffer for simplified design.
- SPI-compatible interface for easy microcontroller communication.
- Low power consumption (10.5mW at 1MSPS).
Housed in a 24-pin VQFN (RGE) package, it’s ideal for industrial automation, power monitoring, and data acquisition systems. The device supports bipolar/unipolar inputs and includes auto-scan modes for efficient multi-channel sampling.
For detailed specs, refer to the datasheet (SBAS586) on TI’s website.
Equivalent
The ADS8638SRGER is a 12-bit, 8-channel SAR ADC. Equivalent alternatives include:
1. ADS8688 (16-bit, similar features)
2. LTC1867 (16-bit, 8-channel, from Analog Devices)
3. MAX1308 (12-bit, 8-channel, from Maxim Integrated)
4. MCP3208 (12-bit, 8-channel, from Microchip)
These offer comparable resolution and channel counts but may differ in speed, interface, or voltage range. Check datasheets for exact compatibility.
1. ADS8688 (16-bit, similar features)
2. LTC1867 (16-bit, 8-channel, from Analog Devices)
3. MAX1308 (12-bit, 8-channel, from Maxim Integrated)
4. MCP3208 (12-bit, 8-channel, from Microchip)
These offer comparable resolution and channel counts but may differ in speed, interface, or voltage range. Check datasheets for exact compatibility.
Features
The ADS8638SRGER is a 12-bit, 8-channel SAR ADC with key features:
- Resolution: 12-bit
- Channels: 8 single-ended or 4 differential inputs
- Throughput: 1 MSPS
- Input Range: Programmable (±12.288V, ±10.24V, ±6.144V, ±5.12V, 0–12.288V, 0–10.24V)
- Interface: SPI-compatible (up to 50 MHz)
- Power Supply: 5V analog, 1.8–5V digital
- Low Power: 12.5 mW at 1 MSPS
- Internal Reference: 2.5V (low drift)
- Package: 24-pin VQFN (4mm × 4mm)
- Operating Temp: –40°C to +125°C
Ideal for industrial automation, medical, and data acquisition systems.
- Resolution: 12-bit
- Channels: 8 single-ended or 4 differential inputs
- Throughput: 1 MSPS
- Input Range: Programmable (±12.288V, ±10.24V, ±6.144V, ±5.12V, 0–12.288V, 0–10.24V)
- Interface: SPI-compatible (up to 50 MHz)
- Power Supply: 5V analog, 1.8–5V digital
- Low Power: 12.5 mW at 1 MSPS
- Internal Reference: 2.5V (low drift)
- Package: 24-pin VQFN (4mm × 4mm)
- Operating Temp: –40°C to +125°C
Ideal for industrial automation, medical, and data acquisition systems.
Application
The ADS8638SRGER is a 12-bit, 8-channel SAR ADC with a wide input range (up to ±12.288V). Key application areas include:
- Industrial Automation: PLCs, motor control, and process monitoring.
- Power Management: Energy metering, grid monitoring, and UPS systems.
- Medical Equipment: Patient monitoring and diagnostic devices.
- Test & Measurement: Data acquisition systems and portable instruments.
- Automotive: Battery management and sensor interfaces.
Its high accuracy (±1 LSB INL), low power (5.5mW/channel), and flexible input ranges make it ideal for precision measurement in harsh environments.
- Industrial Automation: PLCs, motor control, and process monitoring.
- Power Management: Energy metering, grid monitoring, and UPS systems.
- Medical Equipment: Patient monitoring and diagnostic devices.
- Test & Measurement: Data acquisition systems and portable instruments.
- Automotive: Battery management and sensor interfaces.
Its high accuracy (±1 LSB INL), low power (5.5mW/channel), and flexible input ranges make it ideal for precision measurement in harsh environments.
Package
The ADS8638SRGER is a 12-bit, 8-channel SAR ADC from Texas Instruments. It comes in a VQFN-24 (RGE) package, which measures 4mm × 4mm with a 0.5mm pitch. This compact, leadless package is suitable for space-constrained applications, offering good thermal and electrical performance.
