Overview
The MAX189BCWE+ is a low-power, 12-bit 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 power consumption and space are critical. The MAX189BCWE+ is part of the MAX189 series, which is known for its excellent AC characteristics, low power consumption, and ease of use.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 12 | Bits | |||
| Relative Accuracy | MAX189A | ±½ | LSB | ||
| Differential Nonlinearity | No missing codes | ||||
| Offset Error | MAX189A | ±1½ | LSB | ||
| Gain Error | MAX189A | ±1 | LSB | ||
| Signal-to-Noise Plus Distortion Ratio (SINAD) | 10kHz Sine Wave Input, 0 to 4.096V P-P, 75ksps | 70 | dB | ||
| Total Harmonic Distortion (THD) | Up to the 5th Harmonic | -80 | dB | ||
| Spurious-Free Dynamic Range (SFDR) | 80 | dB | |||
| Conversion Time (tCONV) | 5.5 | 8.5 | μs | ||
| Track/Hold Acquisition Time (tACQ) | 1.5 | μs | |||
| Throughput Rate | External clock, 4MHz, 13 clocks | 75 | ksps | ||
| Supply Voltage (VDD) | 4.75 | 5.25 | V | ||
| Supply Current (IDD) | Operating mode | 1.0 | 2.0 | mA | |
| Power-down mode | 2 | 10 | μA |
Key Features
- 12-bit resolution with ±½ LSB integral nonlinearity for the MAX189A model.
- Internal track/hold circuit with a 75kHz sampling rate.
- Single +5V operation with low power consumption (7.5mW in operating mode and 10μA in shutdown mode).
- Compatible with SPI, QSPI, and MICROWIRE interfaces.
- Available in 8-pin PDIP and 16-pin SO packages, saving space in designs.
- Excellent AC characteristics, including a SINAD of 70 dB, THD of -80 dB, and SFDR of 80 dB.
Applications
The MAX189BCWE+ is ideal for remote DSP and sensor applications, as well as circuits where power consumption and space are crucial. It is particularly suited for data acquisition systems, industrial control systems, and any application requiring high accuracy and low power consumption.
Q & A
- What is the resolution of the MAX189BCWE+ ADC?
The MAX189BCWE+ has a 12-bit resolution. - What is the typical supply voltage for the MAX189BCWE+?
The typical supply voltage is +5V. - What are the power consumption characteristics of the MAX189BCWE+?
The MAX189BCWE+ consumes 7.5mW in operating mode and reduces to 10μA in shutdown mode. - What interfaces is the MAX189BCWE+ compatible with?
The MAX189BCWE+ is compatible with SPI, QSPI, and MICROWIRE interfaces. - What is the sampling rate of the MAX189BCWE+?
The sampling rate is 75kHz. - What are the package options for the MAX189BCWE+?
The MAX189BCWE+ is available in 8-pin PDIP and 16-pin SO packages. - What is the signal-to-noise plus distortion ratio (SINAD) of the MAX189BCWE+?
The SINAD is 70 dB. - How does the MAX189BCWE+ handle external references?
The MAX189 requires an external reference voltage. - What is the throughput rate of the MAX189BCWE+?
The throughput rate is 75 ksps with an external clock of 4MHz and 13 clocks per conversion cycle. - What are the operating temperature ranges for the MAX189BCWE+?
The operating temperature ranges are typically from 0°C to +70°C, but can vary depending on the specific model variant.
