In the data acquisition system, the speed and accuracy of the A / D conversion determines the speed and accuracy of the acquisition system. MAX197 is a high-speed A / D conversion chip with 12-bit measurement accuracy introduced by Maxim. It requires only a single power supply and has a short conversion time (6us). It has 8 input channels and also provides a standard parallel interface-8 The three-state data I / O port can be directly interfaced with most single-chip microcomputers, which is very convenient to use.
Introduction to MAX197
The MAX197 chip is a multi-range (± 10V, ± 5V, 0 ～ 10V, 0 ～ 5V), 8-channel, 12-bit high-precision A / D converter. It adopts successive approximation working mode and has a standard microcomputer interface. The tri-state data I / O port is used as an 8-bit data bus, and the timing of the data bus is compatible with most general-purpose microprocessors. All logic inputs and outputs are compatible with TTL / CMOS levels. Compared with the general A / D converter chip, the new A / D converter chip MAX197 has an excellent performance-price ratio. It only needs a single + 5V power supply, and the peripheral circuit is simple, which can simplify circuit design.
1. Features (1) 12-bit resolution, 1 / 2LSB linearity;
(2) Single + 5V power supply;
(3) Software programmable input range: 10V, 5V, 0 ~ + 5V, 0 ~ + 10V;
(4) Input multiplexer protection: 16.5V
(5) 8 analog input channels;
(6) 6us conversion time, 100kSPS sampling speed;
(7) Internal / external acquisition control;
(8) Internal 4.096V or external reference voltage;
(9) Two power-down modes;
(10) Internal or external clock.
The MAX197 chip is a multi-range (± 10V, ± 5V, 0 ～ 10V, 0 ～ 5V), 8-channel, 12-bit high-precision A / D converter. It adopts successive approximation working mode and has a standard microcomputer interface. The tri-state data I / O port is used as an 8-bit data bus, and the timing of the data bus is compatible with most general-purpose microprocessors. All logic inputs and outputs are compatible with TTL / CMOS levels. Compared with the general A / D converter chip, the new A / D converter chip MAX197 has an excellent performance-price ratio. It only needs a single + 5V power supply, and the peripheral circuit is simple, which can simplify circuit design.
1. Features (1) 12-bit resolution, 1 / 2LSB linearity;
(2) Single + 5V power supply;
(3) Software programmable input range: 10V, 5V, 0 ~ + 5V, 0 ~ + 10V;
(4) Input multiplexer protection: 16.5V
(5) 8 analog input channels;
(6) 6us conversion time, 100kSPS sampling speed;
(7) Internal / external acquisition control;
(8) Internal 4.096V or external reference voltage;
(9) Two power-down modes;
(10) Internal or external clock.
Static Sensitive Cleaning Swab,Industrial Foam Swab,Foam Tip Swab,Foam Cleaning Swab
Miraclean Technology Co., Ltd. , https://www.mrccleanroom.com