Overview
The ADS7886SBDCKT is a 12-bit, 1-MSPS (mega-samples per second) analog-to-digital converter (ADC) produced by Texas Instruments. This device features a capacitor-based successive approximation register (SAR) A/D converter with inherent sample and hold circuitry. It is designed for low power consumption, making it suitable for battery-powered applications. The ADS7886 operates over a wide supply range from 2.35 V to 5.25 V and is available in 6-pin SOT-23 and SC70 packages, ensuring compact design and versatility in various applications.
Key Specifications
| Parameter | Test Conditions | MIN | TYP | MAX | Unit |
|---|---|---|---|---|---|
| Resolution | 12 | Bits | |||
| Full-scale input voltage span | 0 | VDD | V | ||
| Supply voltage | 2.35 | 3.3 | 5.25 | V | |
| Supply current (normal mode) | VDD = 2.35 V to 3.6 V, 1-MHz throughput | 1.3 | 1.5 | 2 | mA |
| Power down state supply current | 1 | µA | |||
| Integral nonlinearity (INL) | –1.25 | ±0.65 | 1.25 | LSB | |
| Differential nonlinearity (DNL) | –1 | +0.4 / –0.65 | 1 | LSB | |
| Conversion time | 20-MHz SCLK | 760 | 800 | ns | |
| Maximum throughput rate | 20-MHz SCLK | 1 | MHz |
Key Features
- 12-bit resolution with a sample rate of 1 MSPS
- Zero latency and 20-MHz serial interface
- Wide supply range: 2.35 V to 5.25 V
- Low power consumption: 3.9 mW at 3 V and 7.5 mW at 5 V
- High accuracy: INL ±1.25 LSB maximum, DNL ±1 LSB maximum
- Unipolar input range: 0 V to VDD
- Power down feature with 1 µA current in power-down state
- Wide input bandwidth: 15 MHz at 3 dB
- Compact 6-pin SOT-23 and SC70 packages
- Operating temperature range: –40°C to 125°C
Applications
- Base band converters in radio communication
- Motor current and bus voltage sensors in digital drives
- Optical networking (DWDM, MEMS-based switching)
- Optical sensors
- Battery-powered systems
- Medical instrumentations
- High-speed data acquisition systems
- High-speed closed-loop systems
Q & A
- What is the resolution of the ADS7886 ADC?
The ADS7886 has a 12-bit resolution.
- What is the sample rate of the ADS7886?
The sample rate of the ADS7886 is 1 MSPS.
- What is the supply voltage range for the ADS7886?
The supply voltage range for the ADS7886 is from 2.35 V to 5.25 V.
- How much power does the ADS7886 typically consume at 3 V and 5 V?
The ADS7886 typically consumes 3.9 mW at 3 V and 7.5 mW at 5 V.
- What is the input range for the ADS7886?
The input range for the ADS7886 is from 0 V to VDD.
- Does the ADS7886 have a power-down feature?
Yes, the ADS7886 has a power-down feature with a current of 1 µA in the power-down state.
- What is the input bandwidth of the ADS7886?
The input bandwidth of the ADS7886 is 15 MHz at 3 dB.
- In what packages is the ADS7886 available?
The ADS7886 is available in 6-pin SOT-23 and SC70 packages.
- What is the operating temperature range for the ADS7886?
The operating temperature range for the ADS7886 is from –40°C to 125°C.
- What are some typical applications of the ADS7886?
Typical applications include base band converters, motor current and bus voltage sensors, optical networking, optical sensors, battery-powered systems, medical instrumentations, high-speed data acquisition systems, and high-speed closed-loop systems.
