TM7705 16-bit Analog To Digital Converter IC SOIC-16

TM7705 16-bit Analog to Digital Converter IC (SOIC-16) delivers precise 16-bit resolution for low-frequency signal measurement and conversion. Designers integrate it into instrumentation, industrial automation, and sensor systems to achieve accurate analog-to-digital conversion with minimal external components.

Key Features:

• High Resolution: Provides 16-bit ADC conversion for accurate measurements.
• Dual-Channel Input: Accepts two analog input channels with programmable configuration.
• Low Power Consumption: Operates efficiently in battery-powered and embedded systems.
• SOIC-16 Package: Compact surface-mount design compatible with standard PCB layouts.
• Integrated Reference: Supports internal or external reference voltage for flexibility.
• Synchronous Serial Interface: Communicates easily with microcontrollers and DSPs.

Technical Specifications:

• Resolution: 16 bits
• Number of Channels: 2 (differential or pseudo-differential inputs)
• Input Voltage Range: ±2.5 V (typical, depends on reference)
• Sampling Rate: Up to 10 kSPS (selectable)
• Serial Interface: SPI-compatible synchronous communication
• Power Supply Voltage: 2.7 V to 5.5 V
• Power Consumption: Low-power operation with standby mode
• Operating Temperature Range: –40 °C to +85 °C

Mechanical Specifications:

• Package Type: SOIC-16 (surface-mount)
• Lead Material: Tin-plated copper leads
• Body Material: Molded epoxy resin housing
• Mounting: Standard SMT reflow soldering

Dimensions:

• Package Width: ~3.9 mm
• Package Length: ~9.9 mm
• Lead Pitch: 1.27 mm
• Lead Length: ~0.5 mm

Pinout and Wiring:

• Pin 1–2: Analog input channels (AIN1+, AIN1−)
• Pin 3–4: Analog input channels (AIN2+, AIN2−)
• Pin 5: Reference input (REFIN+)
• Pin 6: Reference input (REFIN−)
• Pin 7: Serial Data Out (SDO)
• Pin 8: Serial Data In (SDI)
• Pin 9: Serial Clock (SCLK)
• Pin 10: Chip Select (CS)
• Pin 11: Reset (RESET)
• Pin 12: Clock Input (CLKIN)
• Pin 13: Power Supply (VDD)
• Pin 14: Ground (GND)
• Pin 15–16: Internal reference or control pins (see datasheet)
• Wiring Note: Connect inputs to sensors, supply stable reference, and link SPI lines to MCU/DSP.

Datasheet Reference:

• Refer to the official TM7705 datasheet for full specifications, timing diagrams, and recommended application circuits.

Applications:

• Industrial Automation: Capture sensor and control signals with high precision.
• Instrumentation: Build digital measurement equipment requiring 16-bit ADC performance.
• Portable Devices: Enable accurate sensor interfacing in handheld instruments.
• Embedded Systems: Provide analog input capability to microcontrollers and DSPs.

Equivalent Models:

• AD7705: Pin-to-pin compatible 16-bit sigma-delta ADC from Analog Devices.
• CS5521: 16-bit ADC with serial interface and low-power operation.
• ADS1115: Alternative 16-bit ADC with I²C interface and integrated PGA.

Package Includes:

• 1 x TM7705 16-bit Analog to Digital Converter IC (SOIC-16)