LTC1416CG
LTC1416CG - 14-Bit 400ksps Low-Power ADC | Analog Devices
Analog Devices LTC1416CG is a low-power, 14-bit, successive-approximation sampling ADC with a conversion time of 2.2 microseconds, a maximum sampling rate of 400 ksps, and a 28-pin SSOP package. The converter accepts a bipolar full-scale input range of ±2.5 V and operates from ±5 V supplies while drawing 70 mW.
A sampling ADC is a data-converter category that uses a sample-and-hold circuit and successive-approximation conversion to translate an analog voltage into a digital code. The LTC1416 belongs to the ADC, data-converter, signal-processing, and semiconductor hierarchy. Its high dynamic-range sample-and-hold front end makes it suitable for precision instrumentation, industrial measurement, data acquisition, and control systems that require accurate conversion without a high-power switching architecture.
The principal characteristics are 14-bit resolution, 400 ksps throughput, and 2.2 microsecond conversion time. The Analog Devices datasheet also identifies ±2 LSB maximum integral nonlinearity, ±1.5 LSB maximum differential nonlinearity, and operation from ±5 V supplies. Two digitally selectable shutdown modes help reduce power consumption when conversion activity is intermittent. The converter supports internal or external reference operation and includes a precision reference according to the manufacturer product information.
The parallel-output architecture supports direct connection to digital control logic when the converter is mounted close to the processor or FPGA. A SAR ADC is useful when deterministic latency, moderate resolution, and modest conversion rates matter more than very high throughput. This combination of 14-bit resolution, 400 ksps sampling, selectable shutdown modes, and bipolar input range allows the LTC1416 to balance measurement resolution, throughput, power use, and implementation complexity.
Typical uses include process-control loops, analog sensor acquisition, laboratory measurement instruments, industrial data-logging equipment, and embedded systems that sample slowly varying or moderately changing analog signals. The internal reference can simplify designs where an external precision reference would add cost and board area, while external-reference operation offers a path for shared references or calibration schemes.
When laying out the circuit, place input, reference, and bypass connections to minimize pickup around the high-impedance analog input. Use the manufacturer pin-description table when assigning signals and observe the specified acquisition, conversion, and shutdown timing. Check the power-supply requirements and reference selection carefully because incorrect sequencing or bypassing can degrade accuracy even when the nominal sampling rate is suitable.
This product overview consolidates the converter's resolution, throughput, input range, power characteristics, shutdown options, and package details into an engineering-oriented selection reference. It also distinguishes verified pin-compatible family alternatives from broader functional ADC choices, helping designers evaluate PCB reuse, interface compatibility, and measurement requirements before committing to a layout.
見積もり
お問い合わせ
