Here is a professional, thorough, and detailed HTML-formatted technical summary for the MAX110/MAX111 analog-to-digital converters:

MAX110/MAX111 14-Bit Analog-to-Digital Converters (ADCs)

Overview

The MAX110 and MAX111 are high-precision, 14-bit analog-to-digital converters that utilize an innovative auto-calibration technique to achieve exceptional accuracy. These ADCs are designed for applications requiring high-resolution conversion with minimal external components. The MAX110 operates from dual ±5V supplies while the MAX111 requires only a single +5V supply, making it ideal for portable and space-constrained applications.

These converters feature a successive-approximation architecture with true differential inputs, offering excellent noise rejection and common-mode range. The auto-calibration circuitry continuously compensates for offset and gain errors, maintaining accuracy over temperature and time without requiring user intervention.

Key Features

High Resolution: 14-bit plus overrange capability
Auto-Calibration: Internal circuitry maintains accuracy without external trimming
Supply Options:
- MAX110: Dual ±5V operation
- MAX111: Single +5V operation
True Differential Inputs: ±VREF input range
Low Power Consumption: 95mW typical
Fast Conversion Time: 12µs maximum
Internal Clock: No external timing components required
Parallel Interface: Easy connection to microprocessors
Wide Operating Temperature Range: -40°C to +85°C

Applications

The MAX110/MAX111 are suitable for a wide range of precision measurement applications including:

Industrial process control systems
Medical instrumentation
Precision data acquisition systems
Automotive testing equipment
Seismic monitoring systems
High-resolution instrumentation
Automatic test equipment
Digital signal processing systems

Electrical Characteristics

Absolute Maximum Ratings

VDD to DGND: -0.3V to +6V
VSS to DGND: -6V to +0.3V
Analog Input Voltage (MAX110): ±17V
Digital Input Voltage: -0.3V to VDD +0.3V
Operating Temperature Range: -40°C to +85°C
Storage Temperature Range: -65°C to +150°C

DC Characteristics (TA = +25°C, VDD = +5V, VSS = -5V for MAX110)

Resolution: 14 bits
Integral Nonlinearity (INL): ±1 LSB max
Differential Nonlinearity (DNL): ±1 LSB max
Offset Error: ±3 LSB max
Gain Error: ±5 LSB max
Input Voltage Range: ±VREF
Input Impedance: 10kΩ typical
Power Supply Rejection: 80dB min

AC Characteristics

Conversion Time: 12µs max
Throughput Rate: 76.9k samples/sec
Aperture Delay: 50ns typical
Aperture Jitter: 100ps typical
Signal-to-Noise Ratio (SNR): 84dB typical
Total Harmonic Distortion (THD): -90dB typical

Power Requirements

MAX110:
- VDD: +5V ±5%
- VSS: -5V ±5%
- Power Consumption: 95mW typical
MAX111:
- VDD: +5V ±5%
- Power Consumption: 75mW typical

Package Information

The MAX110/MAX111 are available in the following package options:

28-Pin Plastic DIP (MAX110ACPE/MAX111ACPE)

Package Dimensions: 37.34mm x 13.97mm
Lead Pitch: 2.54mm
Operating Temperature: 0°C to +70°C

28-Pin Ceramic DIP (MAX110AEPE/MAX111AEPE)

Package Dimensions: 37.34mm x 13.97mm
Lead Pitch: 2.54mm
Operating Temperature: -40°C to +85°C

28-Pin Wide SO (MAX110ACWE/MAX111ACWE)

Package Dimensions: 17.9mm x 7.5mm
Lead Pitch: 1.27mm
Operating Temperature: 0°C to +70°C

Functional Description

The MAX110/MAX111 employ a successive-approximation register (SAR) architecture with internal auto-calibration. The conversion process begins with an internal calibration cycle that compensates for offset and gain errors. This calibration occurs automatically at power-up and can be initiated by the user at any time.

The analog input stage features true differential inputs with a wide common-mode range. The reference input accepts voltages from 1V to VDD (for MAX111) or ±VREF (for MAX110), allowing flexible system design. The digital interface includes a 14-bit parallel output with standard control signals for easy microprocessor interfacing.