adc141s626cimmx National Semiconductor Corporation, adc141s626cimmx Datasheet
adc141s626cimmx
Related parts for adc141s626cimmx
adc141s626cimmx Summary of contents
Page 1
... MHz to 4.5 MHz. The ADC141S626 is available in a 10-lead MSOP package. Connection Diagram TRI-STATE® trademark of National Semiconductor Corporation. MICROWIRE™ trademark of National Semiconductor Corporation. QSPI™ and SPI™ are trademarks of Motorola, Inc. ...
Page 2
... Ordering Information Order Code Temperature Range ADC141S626CIMM −40°C to +85°C ADC141S626CIMMX −40°C to +85°C ADC141S626EB Block Diagram Pin Descriptions and Equivalent Circuits Pin No. Symbol V 1 REF 2 +IN 3 −IN 4 GND 5 GND OUT 8 SCLK www.national.com Description 10-Lead MSOP Package, 1000 Units Tape & ...
Page 3
Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Analog Supply Voltage V A Digital I/O Supply Voltage V IO Voltage on Any Analog Input Pin to GND ...
Page 4
Symbol Parameter ANALOG INPUT CHARACTERISTICS V Differential Input Range Leakage Current DCL C Input Capacitance INA CMRR Common Mode Rejection Ratio DIGITAL INPUT CHARACTERISTICS V Input High Voltage IH V Input Low Voltage IL I Input Current ...
Page 5
Symbol Parameter PWR Power Consumption, Conversion Mode (Conv) PWR Power Consumption, Power Down Mode (PD) (CS high) PSRR Power Supply Rejection Ratio AC ELECTRICAL CHARACTERISTICS f Maximum Clock Frequency SCLK f Minimum Clock Frequency SCLK f Maximum Sample Rate S ...
Page 6
Timing Diagrams FIGURE 1. ADC141S626 Single Conversion Timing Diagram FIGURE 2. Timing Test Circuit FIGURE 3. D Rise and Fall Times OUT FIGURE 4. D Hold and Access Times OUT www.national.com FIGURE 5. Valid CS Assertion Times 30041308 30041306 FIGURE ...
Page 7
Specification Definitions APERTURE DELAY is the time between the first falling edge of SCLK and the time when the input signal is sampled for conversion. COMMON MODE REJECTION RATIO (CMRR measure of how well in-phase signals common to ...
Page 8
Typical Performance Characteristics T = +25°C, and kHz unless otherwise stated DNL - 250 kSPS DNL vs. V DNL vs. V www.national.com 30041321 A 30041323 REF 30041318 8 ...
Page 9
Typical Performance Characteristics T = +25°C, and kHz unless otherwise stated DNL vs. SCLK FREQUENCY DNL vs. TEMPERATURE SINAD vs +5V REF SCLK INL ...
Page 10
Typical Performance Characteristics T = +25°C, and kHz unless otherwise stated SINAD vs. V SINAD vs. SCLK FREQUENCY SINAD vs. INPUT FREQUENCY www.national.com REF 30041337 30041341 30041349 10 ...
Page 11
Typical Performance Characteristics T = +25°C, and kHz unless otherwise stated SINAD vs. TEMPERATURE V CURRENT vs CURRENT vs. TEMPERATURE +5V REF ...
Page 12
Typical Performance Characteristics T = +25°C, and kHz unless otherwise stated CURRENT vs. SCLK FREQUENCY REF V CURRENT vs CURRENT vs. TEMPERATURE IO www.national.com +5V, ...
Page 13
Functional Description The ADC141S626 is a 14-bit, 50 kSPS to 250 kSPS sampling Analog-to-Digital (A/D) converter. The converter uses a suc- cessive approximation register (SAR) architecture based up- on capacitive redistribution containing an inherent sample- and-hold function. The differential nature ...
Page 14
Section 2.3. CM Figure 9 shows the ADC141S626 being driven by a full-scale differential source. FIGURE 8. ADC Output vs. Input for a Differential Input Operation FIGURE 9. Differential Input 2.2 ...
Page 15
SERIAL DIGITAL INTERFACE The ADC141S626 communicates via a synchronous 3-wire serial interface as shown in Figure 1 or re-shown in Figure 13 for convenience. CS, chip select bar, initiates conversions and frames the serial data transfers. SCLK (serial clock) ...
Page 16
Applications Information OPERATING CONDITIONS We recommend that the following conditions be observed for operation of the ADC141S626: ≤ ≤ −40°C T +85°C A ≤ ≤ +2.7V V +5.5V A ≤ ≤ +2.7V V +5.5V IO ≤ ≤ ...
Page 17
A single, uniform ground plane and the use of split power planes are recommended. The ...
Page 18
FIGURE 15. Interfacing the ADC141S626 to a Bridge Sensor 6.3 Current Sensing Application Figure 16 shows an example of interfacing a current trans- ducer to the ADC141S626. The current transducer converts an input current into a voltage that is converted ...
Page 19
Physical Dimensions inches (millimeters) unless otherwise noted 10-Lead MSOP Order Number ADC141S626CIMM NS Package Number MUB10A 19 www.national.com ...
Page 20
... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...