AD7896JR Analog Devices Inc, AD7896JR Datasheet
AD7896JR
Specifications of AD7896JR
Available stocks
Related parts for AD7896JR
AD7896JR Summary of contents
Page 1
FEATURES 100 kHz Throughput Rate Fast 12-Bit Sampling ADC with 8 s Conversion Time 8-Lead PDIP and SOIC Single 2 5.5 V Supply Operation High Speed, Easy-to-Use Serial Interface On-Chip Track-and-Hold Amplifier Analog Input Range ...
Page 2
AD7896–SPECIFICATIONS Parameter 2 DYNAMIC PERFORMANCE Signal-to-(Noise + Distortion) Ratio @ 25° MIN MAX 3 Total Harmonic Distortion (THD) 3 Peak Harmonic or Spurious Noise 3 Intermodulation Distortion (IMD) Second Order Terms Third Order Terms DC ACCURACY Resolution ...
Page 3
Parameter A Version POWER REQUIREMENTS V 2.7/5 Power Dissipation 10.8 Power-Down Mode I @ 25° MIN MAX I @ 25° 150 MIN MAX Power ...
Page 4
... AD7896AR AD7896AR-REEL AD7896AR-REEL7 AD7896BR AD7896BR-REEL AD7896BR-REEL7 AD7896JR AD7896JR-REEL AD7896SQ EVAL-AD7896CB *N = PDIP CERDIP SOIC. CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD7896 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...
Page 5
Pin No. Mnemonic Description 1 V Analog Input. The analog input range Positive supply voltage AGND Analog Ground. Ground reference for track-and-hold, comparator, and DAC. ...
Page 6
AD7896 TERMINOLOGY Relative Accuracy This is the maximum deviation from a straight line passing through the endpoints of the ADC transfer function. The end- points of the transfer function are zero scale (which is V AGND + 1/2 LSB), a ...
Page 7
CONVERTER DETAILS The AD7896 is a fast, 12-bit ADC that operates from a single 2 5.5 V supply. It provides the user with a track-and- hold, ADC, and serial interface logic functions on a single chip. The ADC ...
Page 8
AD7896 OPERATING MODES Mode 1 Operation (High Sampling Performance) The timing diagram in Figure 2 is for optimum performance in Operating Mode 1 where the falling edge of CONVST starts the conversion and puts the track-and-hold amplifier into its hold ...
Page 9
Serial Interface The serial interface to the AD7896 consists of three wires: a serial clock input (SCLK), the serial data output (SDATA), and a conversion status output (BUSY). This allows for an easy-to- use interface to most microcontrollers, DSP processors, ...
Page 10
AD7896 To chip select the AD7896 in systems where more than one device is connected to the 8X51/L51 serial port, a port bit, configured as an output, from one of the 8X51/L51 parallel ports can be used to gate on ...
Page 11
An alternative scheme is to configure the ADSP-2103/ADSP-2105 such that it accepts an external noncontinuous serial clock. In this case, an external noncontinuous serial clock is provided that drives the serial clock inputs of both the ADSP-2103/ADSP-2105 and the AD7896. ...
Page 12
AD7896 Dynamic Performance (Mode 1 Only) With a combined conversion and acquisition time of 9.5 µs, the AD7896 is ideal for wide bandwidth signal processing applications. These applications require information on the ADC’s effect on the spectral content of the ...
Page 13
Plastic Dual In-Line Package [PDIP] (N-8) Dimensions shown in inches and (millimeters) 0.375 (9.53) 0.365 (9.27) 0.355 (9.02 0.295 (7.49) 0.285 (7.24) 0.275 (6.98 0.100 (2.54) BSC 0.015 0.180 (0.38) (4.57) MIN MAX 0.150 (3.81) ...
Page 14
AD7896 Revision History Location 7/03—Data Sheet changed from REV REV. C. Changes to SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 15
–15– ...
Page 16
–16– ...