10MHz 時鐘頻率、+/-250mV 輸入、16 位分辨率、電流分流 Δ-Σ 調制器
| Resolution (Bits) | 16 |
| Number of input channels | 1 |
| Interface type | Serial |
| Architecture | Delta-Sigma Modulator |
| Input type | Differential |
| Rating | Catalog |
| Reference mode | Int |
| Input range (Max) (V) | 0.25 |
| Input range (Min) (V) | -0.25 |
| Features | Oscillator |
| Operating temperature range (C) | -40 to 85 |
| Power consumption (Typ) (mW) | 30 |
| Analog voltage AVDD (Min) (V) | 4.5 |
| SNR (dB) | 70.5 |
| Analog voltage AVDD (Max) (V) | 5.5 |
| INL (Max) (+/-LSB) | 12 |
| Digital supply (Min) (V) | 4.5 |
| Digital supply (Max) (V) | 5.5 |
- 16-BIT RESOLUTION
- 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
- 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
The ADS1202 is a precision, 80dB dynamic range, delta-sigma (
) modulator operating from a single +5V supply. The differential inputs are ideal for direct connections to transducers or low-level signals. With the appropriate digital filter and modulator rate, the device can be used to achieve 16-bit Analog-to-Digital (A/D) conversion with no missing codes. Effective resolution of 12 bits can be maintained with a digital filter bandwidth of 10kHz at a modulator rate of 10MHz. The ADS1202 is designed for use in medium resolution measurement applications including current measurements, smart transmitters, industrial process control, weigh scales, chromatography, and portable instrumentation. It is available in a TSSOP-8 package.
