AD7821KNZ

Semiconductors - ICs

> Data & Signal Conversion

> Analog-to-Digital Converters - ADC

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Series Information for AD7821KNZ - Analog Devices

Features

  • feature
    Fast Conversion Time: 660 ns Max 100 kHz Track-and-Hold Function 1 MHz Sample Rate Unipolar and Bipolar Input Ranges Ratiometric Reference Inputs No External Clock Extended Temperature Range Operation Skinny 20-Lead DlPs, SOIC, and 20-Terminal Surface-Mount Packages

Description

8BIT ADC SMPLING MICRO CPTBLE SMD

The AD7821 is a high speed, 8-bit, sampling, analog-to-digital converter that offers improved performance over the popular AD7820. It offers a conversion time of 660 ns (versus 1.36 µs for the AD7820) and 100 kHz signal bandwidth (versus 6.4 kHz). The sampling instant is better defined and occurs on the falling edge of WR or RD. The provision of a VSS pin (Pin 19) allows the part to operate from ±5 V supplies and to digitize bipolar input signals. Alternatively, for unipolar inputs, the VSS pin can be grounded and the AD7821 will operate from a single +5 V supply, like the AD7820. The AD7821 has a built-in track-and-hold function capable of digitizing full-scale signals up to 100 kHz max. It also uses a half-flash conversion technique that eliminates the need to gen- erate a CLK signal for the ADC. The AD7821 is designed with standard microprocessor control signals (CS, RD, WR, RDY, INT) and latched, three-state data outputs capable of interfacing to high speed data buses. An overflow output (OFL) is also provided for cascading devices to achieve higher resolution. The AD7821 is fabricated in Linear Compatible CMOS (LC2 MOS), an advanced, mixed technology process combining precision bipolar circuits with low power CMOS logic. The part features a low power dissipation of 50 mW.

Specifications

Resolution (Bits):
8bit
Sampling Rate:
1MSPS
Input Channel Type:
Differential
Data Interface:
Parallel
Supply Voltage Type:
Single
Supply Voltage Min:
4.75V
Supply Voltage Max:
5.25V
ADC / DAC Case Style:
DIP
No. of Pins:
20Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
Single 8-Bit Pipelined ADCs
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (07-Jul-2017)
Base Number:
7821
Conversion Time:
0.66µs
IC Case Style:
DIP
Linearity Error ADC / DAC +:
1LSB
No. of Bits:
8bit
No. of Channels:
1Channels
Operating Temperature Range:
-40°C to +85°C
Supply Current:
20mA
Supply Voltage Range:
4.75V to 5.25V
Supply Voltage Range - Analogue:
4.75V to 5.25V
Termination Type:
Through Hole

Alternate Descriptions

RS Components
8bit A-D converter,AD7821KN DIL20 1Msps
Richardson RFPD
CONVERTER - ADC
RS Components UK
8bit A-D converter,AD7821KN DIL20 1Msps
RS Components DE
8-Bit-Bit ADC AD7821KNZ Single Ended Parallel, PDIP 20-Pin 1 Montage-Typ : Durchsteckmontage Abtastrate : 1000ksps Architektur : Semi Flash Versorgungsspannung einzeln typ. : 5 V Versorgungsspannung bipolar typ. : ±5V Abmessungen : 26.16 x 6.35 x 3.3mm, Analog Devices
RS Components HK
8bit A-D converter,AD7821KN DIL20 1Msps
RS Components JP
8bit A-D converter,AD7821KN DIL20 1Msps
RS Components FR
Convertisseur analogique-numérique
RS Components CN
8bit A-D converter,AD7821KN DIL20 1Msps
RS Components ES
8bit A-D converter,AD7821KN DIL20 1Msps
RS Components NL
8bit A-D converter,AD7821KN DIL20 1Msps
RS Components NO
8bit A-D converter,AD7821KN DIL20 1Msps
RS Components US
IC,A-D,Converter,Parallel,8 Bi
RS Components SG
IC,A-D,Converter,Parallel,8 Bi
RS Components TW
8bit A-D converter,AD7821KN DIL20 1Msps