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IC ADC 12BIT SAR 16WQFN
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Nhà sản xuấtTexas Dụng cụ
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Ông. Phần #ADS7947SRTER
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Có sẵn7251
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| Part Status | Active |
| Base Product Number | ADS7947 |
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 2M |
| Number of Inputs | 2 |
| Input Type | Pseudo-Differential |
| 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 |
| Voltage - Supply, Analog | 2.7V ~ 5.25V |
| Voltage - Supply, Digital | 1.65V ~ 5.25V |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 16-WFQFN Exposed Pad |
| Supplier Device Package | 16-WQFN (3x3) |
| Mounting Type | Surface Mount |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Tổng quan
Description
The ADS7947SRTER is a 12-bit, 1-MSPS, single-channel SAR ADC from Texas Instruments. It features a serial interface (SPI-compatible), operates from a 2.7V to 5.5V supply, and consumes low power (3.5mW at 5V). Key benefits include:
- High-speed sampling (1 MSPS) with no latency
- Low power consumption, suitable for battery-powered applications
- Internal reference (2.5V) and reference buffer for simplified design
- Small 16-QFN (3x3mm) package, ideal for space-constrained designs
Applications include portable instrumentation, data acquisition, and industrial sensors. The device supports daisy-chaining and offers flexible power-down modes for efficiency.
For detailed specs, refer to the [datasheet](https://www.ti.com/product/ADS7947).
- High-speed sampling (1 MSPS) with no latency
- Low power consumption, suitable for battery-powered applications
- Internal reference (2.5V) and reference buffer for simplified design
- Small 16-QFN (3x3mm) package, ideal for space-constrained designs
Applications include portable instrumentation, data acquisition, and industrial sensors. The device supports daisy-chaining and offers flexible power-down modes for efficiency.
For detailed specs, refer to the [datasheet](https://www.ti.com/product/ADS7947).
Equivalent
Equivalent products to the ADS7947SRTER (12-bit, 1-MSPS SAR ADC) include:
- ADS7946SRTER (12-bit, 500-kSPS)
- ADS7945SRTER (10-bit, 1-MSPS)
- LTC1867 (12-bit, 1-MSPS, from Analog Devices)
- MCP3201 (12-bit, 100-kSPS, from Microchip)
These alternatives offer similar resolution and speed but may vary in features like power consumption or interface options. Always check datasheets for exact compatibility.
- ADS7946SRTER (12-bit, 500-kSPS)
- ADS7945SRTER (10-bit, 1-MSPS)
- LTC1867 (12-bit, 1-MSPS, from Analog Devices)
- MCP3201 (12-bit, 100-kSPS, from Microchip)
These alternatives offer similar resolution and speed but may vary in features like power consumption or interface options. Always check datasheets for exact compatibility.
Features
The ADS7947SRTER is a 14-bit, 1-MSPS SAR ADC with the following key features:
- Resolution: 14-bit
- Sampling Rate: 1 MSPS
- Interface: SPI-compatible (3-/4-wire)
- Supply Voltage: 2.7V to 5.5V (single supply)
- Power Consumption: Low power (3.5 mW at 5V, 1 MSPS)
- Input Range: 0V to VREF (external reference up to 5.5V)
- Analog Inputs: Single-ended, 1-channel
- Package: 16-pin WQFN (3mm × 3mm)
- Operating Temp: -40°C to +125°C
- Key Benefits: Small size, low power, high speed, and ease of integration.
Ideal for portable, industrial, and battery-powered applications.
- Resolution: 14-bit
- Sampling Rate: 1 MSPS
- Interface: SPI-compatible (3-/4-wire)
- Supply Voltage: 2.7V to 5.5V (single supply)
- Power Consumption: Low power (3.5 mW at 5V, 1 MSPS)
- Input Range: 0V to VREF (external reference up to 5.5V)
- Analog Inputs: Single-ended, 1-channel
- Package: 16-pin WQFN (3mm × 3mm)
- Operating Temp: -40°C to +125°C
- Key Benefits: Small size, low power, high speed, and ease of integration.
Ideal for portable, industrial, and battery-powered applications.
Pinout
The ADS7947SRTER is a 12-bit, 1-MSPS SAR ADC from Texas Instruments.
- Pin Count: 16 (WQFN package)
- Key Functions:
- VDD: Power supply (2.35V to 5.25V)
- GND: Ground
- VREF: Reference input (1.2V to VDD)
- AINP/AINM: Differential analog inputs
- CS: Chip select (active low)
- SCLK: Serial clock input
- SDI: Serial data input (configuration)
- SDO: Serial data output (conversion results)
- BUSY: Indicates conversion status
It features SPI-compatible interface, low power consumption, and internal reference buffer. Suitable for high-speed, precision applications.
- Pin Count: 16 (WQFN package)
- Key Functions:
- VDD: Power supply (2.35V to 5.25V)
- GND: Ground
- VREF: Reference input (1.2V to VDD)
- AINP/AINM: Differential analog inputs
- CS: Chip select (active low)
- SCLK: Serial clock input
- SDI: Serial data input (configuration)
- SDO: Serial data output (conversion results)
- BUSY: Indicates conversion status
It features SPI-compatible interface, low power consumption, and internal reference buffer. Suitable for high-speed, precision applications.
Application
The ADS7947SRTER is a 12-bit, 1-MSPS SAR ADC used in various applications:
- Industrial Automation: Process control, PLCs, and sensor interfaces.
- Medical Devices: Portable monitoring equipment and diagnostic tools.
- Consumer Electronics: Touchscreens, audio processing, and battery management.
- Automotive: Battery monitoring, safety systems, and infotainment.
- Test & Measurement: Data acquisition systems and oscilloscopes.
Its low power, small size, and high-speed sampling make it ideal for precision analog-to-digital conversion in compact designs.
- Industrial Automation: Process control, PLCs, and sensor interfaces.
- Medical Devices: Portable monitoring equipment and diagnostic tools.
- Consumer Electronics: Touchscreens, audio processing, and battery management.
- Automotive: Battery monitoring, safety systems, and infotainment.
- Test & Measurement: Data acquisition systems and oscilloscopes.
Its low power, small size, and high-speed sampling make it ideal for precision analog-to-digital conversion in compact designs.
Package
The ADS7947SRTER is a 12-bit SAR ADC from Texas Instruments. It comes in a 16-pin WQFN (RTE) package with dimensions of 3mm × 3mm. This small, leadless package is designed for space-constrained applications, offering good thermal and electrical performance. The "RTE" suffix indicates the specific package variant.
