Overview
The ADS1202IPWR is a precision delta-sigma (∆Σ) modulator produced by Texas Instruments. It operates from a single +5V supply and features differential inputs ideal for direct connections to transducers or low-level signals. With the appropriate digital filter and modulator rate, the device can achieve 16-bit Analog-to-Digital (A/D) conversion with no missing codes. It is designed for medium resolution measurement applications and is available in an 8-pin TSSOP package.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 bits | |||
| DC Accuracy - Integral Nonlinearity (INL) | ±3 | ±12 | LSB | |
| DC Accuracy - Differential Linearity (DNL) | ±1 | LSB | ||
| Input Offset (VOS) | ±300 | ±1000 | µV | |
| Input Offset Drift (TCVOS) | 2 | 8 | µV/°C | |
| Gain Error (GERR) | ±0.25 | ±2 | % | |
| Gain Error Drift (TCGERR) | 20 | ppm/°C | ||
| Power-Supply Rejection Ratio (PSRR) | 80 | dB | ||
| Analog Input Full-Scale Range (FSR) | ±320 | mV | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Supply Voltage | 4.75 | 5 | 5.25 | V |
| Package Type | 8-TSSOP |
Key Features
- 16-bit resolution with 13-bit linearity
- Resolution/speed trade-off: 10-bit effective resolution with 20 µs signal delay (12-bit with 77 µs)
- ±250mV input range with single 5V supply
- 2% internal reference voltage and 2% gain error
- Flexible serial interface with four different modes
- Implemented twinned binary coding as split phase or Manchester coding for one line interfacing
- Operating temperature range: -40°C to +85°C
Applications
- Motor control
- Current measurement
- Industrial process control
- Instrumentation
- Smart transmitters
- Portable instruments
- Weight scales
- Pressure transducers
- Chromatography
Q & A
- What is the resolution of the ADS1202IPWR? The ADS1202IPWR has a resolution of 16 bits.
- What is the input range of the ADS1202IPWR? The input range is ±250mV.
- What is the supply voltage for the ADS1202IPWR? The supply voltage is 4.75V to 5.25V.
- What is the operating temperature range of the ADS1202IPWR? The operating temperature range is -40°C to +85°C.
- What package type is the ADS1202IPWR available in? It is available in an 8-pin TSSOP package.
- What are the key applications of the ADS1202IPWR? Key applications include motor control, current measurement, industrial process control, instrumentation, smart transmitters, portable instruments, weight scales, and pressure transducers.
- How does the ADS1202IPWR achieve high resolution A/D conversion? With the appropriate digital filter and modulator rate, the device can achieve 16-bit A/D conversion with no missing codes.
- What is the power-supply rejection ratio (PSRR) of the ADS1202IPWR? The PSRR is 80 dB.
- Does the ADS1202IPWR support flexible serial interface modes? Yes, it supports four different serial interface modes.
- Is the ADS1202IPWR RoHS compliant? Yes, it is lead-free and RoHS compliant.
