Overview
The MAX135CWI+T is a CMOS 15-bit, binary-output analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device utilizes multi-slope integration, which provides low-noise and high-resolution conversions in less time than standard integrating ADCs. It is capable of operating at up to 6 times the tested rate of 16 conversions per second and achieves 18-bit resolution through the use of Super LSBs with data averaging.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Series | MAX135 |
| Mounting Style | SMD/SMT |
| Resolution | 18 bit |
| Number of Channels | 1 Channel |
| Interface Type | Parallel |
| Input Type | Differential |
| Architecture | Multi-Slope |
| Minimum Operating Temperature | 0°C |
| Maximum Operating Temperature | +70°C |
| Height | 2.35 mm |
| INL - Integral Nonlinearity | +/- 2 LSB |
| Length | 18.1 mm |
| Number of Converters | 1 Converter |
| Operating Supply Voltage | 5 V |
| Pd - Power Dissipation | 786 mW |
| Reference Type | External |
| Supply Voltage - Max | 5 V |
| Package/Case | 28-SOIC |
Key Features
- 15-bit, Multi-slope Integration ADC
- 15µV Resolution at 16 Conversions per Second
- Low Supply Current: 125µA Max (Normal Operation), 10µA Max (Sleep-Mode Operation)
- ±0.005% Accuracy at 16 Conversions per Second
- 3 Super Bits for 18-Bit Resolution
- Low Noise—Operates at 300mV Full Scale
- Easy µP Interface—8-Bit Parallel Data Bus
- ±10pA Input Leakage Current
- Small 28-pin DIP and SO packages
Applications
- Analog-Signal Measurement: Pressure, Flow, Temperature, Voltage, Current, Resistance, Weight
- Battery-Powered Instruments
- Control Applications
- Data Acquisition Systems
- Data Loggers
- Numerical Control Systems
- Weight Scales
- Panel Meters
Q & A
- Q: What is the resolution of the MAX135CWI+T ADC?
A: The MAX135CWI+T has a resolution of 15 bits, with the capability to achieve 18-bit resolution using Super LSBs with data averaging.
- Q: What is the operating temperature range of the MAX135CWI+T?
A: The operating temperature range is from 0°C to +70°C.
- Q: What is the power dissipation of the MAX135CWI+T?
A: The power dissipation (Pd) is 786 mW.
- Q: What type of interface does the MAX135CWI+T use?
A: The MAX135CWI+T uses an 8-bit parallel data bus.
- Q: What are the typical applications of the MAX135CWI+T?
A: Typical applications include analog-signal measurement, battery-powered instruments, control applications, data acquisition systems, data loggers, numerical control systems, weight scales, and panel meters.
- Q: What is the input leakage current of the MAX135CWI+T?
A: The input leakage current is ±10pA.
- Q: What is the supply current in normal and sleep modes?
A: The supply current is 125µA maximum in normal operation and 10µA maximum in sleep mode.
- Q: What type of package is the MAX135CWI+T available in?
A: The MAX135CWI+T is available in a 28-SOIC package.
- Q: How accurate is the MAX135CWI+T at 16 conversions per second?
A: The MAX135CWI+T has an accuracy of ±0.005% at 16 conversions per second.
- Q: Where can I find detailed information about the MAX135CWI+T, such as application notes and factory information?
A: You can find detailed information on the Analog Devices Inc. website, or through Ovaga's intelligent search engine and support resources.
