Overview
The MAX187CCWE+T is a 12-bit, low-power, serial analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component operates from a single +5V supply and is designed for applications where low power consumption and high accuracy are crucial. The MAX187 features an 8.5μs successive-approximation ADC, a fast track/hold circuit, an on-chip clock, and a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. The device is available in compact 16-pin SO packages, making it ideal for space-constrained designs.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Resolution | - | - | - | 12 bits | - | - |
| Integral Nonlinearity | - | - | ±½ LSB | - | - | - |
| Supply Voltage | VDD | - | 4.75 | 5.25 | V | |
| Supply Current (Operating) | IDD | - | 1.5 | 2.5 | mA | |
| Supply Current (Power-down) | IDD | - | 2 | 10 | μA | |
| Sampling Rate | - | - | - | 75 ksps | - | - |
| Track/Hold Acquisition Time | tACQ | CS = high | - | 1.5 μs | - | - |
| Input Type | - | - | - | Single Ended | - | - |
| Data Interface | - | - | - | SPI | - | - |
Key Features
- 12-bit resolution with ±½ LSB integral nonlinearity.
- Internal track/hold circuit with a 1.5μs acquisition time.
- Single +5V operation with low power consumption (7.5mW in operating mode and 10μA in shutdown mode).
- High-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- On-chip clock and buffered reference (for MAX187 models).
- Compact 16-pin SO packages.
- Excellent AC characteristics, including -80 dB THD and 80 dB SFDR.
Applications
The MAX187CCWE+T is suitable for a variety of applications where low power consumption and high accuracy are essential. These include remote DSP and sensor applications, data acquisition systems, and circuits where space and power are critical. It is also useful in environments requiring high-speed data conversion with minimal external hardware.
Q & A
- What is the resolution of the MAX187CCWE+T? The MAX187CCWE+T has a 12-bit resolution.
- What is the typical supply current in operating mode? The typical supply current in operating mode is 2.5 mA.
- What is the track/hold acquisition time of the MAX187CCWE+T? The track/hold acquisition time is 1.5 μs.
- What type of data interface does the MAX187CCWE+T use? The MAX187CCWE+T uses a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- What is the power consumption in shutdown mode? The power consumption in shutdown mode is 10 μA.
- What are the package options for the MAX187CCWE+T? The MAX187CCWE+T is available in 16-pin SO packages.
- What is the sampling rate of the MAX187CCWE+T? The sampling rate is 75 ksps.
- Does the MAX187CCWE+T require an external reference? The MAX187 models have an on-chip buffered reference, but the MAX189 models require an external reference.
- What are the typical applications for the MAX187CCWE+T? Typical applications include remote DSP and sensor applications, data acquisition systems, and space-constrained circuits.
- Is there an evaluation kit available for the MAX187? Yes, there is an evaluation kit available for the MAX187, which includes a MAX187 evaluation board and a Maxim 68HC16 microcontroller module.
