 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
AD7794 Datasheet(PDF) 3 Page - Analog Devices |
|
|
|||||||||||||||||||||||||||||
AD7794 Datasheet(HTML) 3 Page - Analog Devices |
|
|
3 / 21 page  Preliminary Technical Data AD7794 REV.PrE 6/04 | Page 3 AD7794—SPECIFICATIONS1 Table 1. (AVDD = 2.7 V to 5.25 V; DVDD = 2.7 V to 5.25 V; GND = 0 V; all specifications TMIN to TMAX, unless otherwise noted.) Parameter AD7794B Unit Test Conditions/Comments AD7794 (CHOP ENABLED) Output Update Rate 4 Hz min nom Settling Time = 2/Output Update Rate 500 Hz max nom No Missing Codes2 24 Bits min fADC ≤125 Hz Resolution (pk – pk) 16 Bits p-p Gain = 128, 16.6 Hz Update Rate, VREF = 2.5 V 19 Bits p-p Gain = 1, 16.6 Hz Update Rate, VREF = 2.5 V Output Noise and Update Rates See Tables in ADC Description Integral Nonlinearity ±15 ppm of FSR max 3.5 ppm typ. Gain = 1 to 32 ±25 ppm of FSR max 5 ppm typ, Gain = 64 or 128 Offset Error3 ±3 µV typ Offset Error Drift vs. Temperature4 ±10 nV/°C typ Full-Scale Error3, 5 ±10 µV typ Gain Drift vs. Temperature4 ±0.5 ppm/°C typ Gain = 1 or 2 ±3 ppm/°C typ Gain = 4 to 128 Power Supply Rejection 90 dB min 100 dB typ, AIN = FS/2 ANALOG INPUTS Differential Input Voltage Ranges ±REFIN/Gain V nom REFIN = REFIN(+) – REFIN(–) or Internal Reference, Gain = 1 to 128 Absolute AIN Voltage Limits2 Unbuffered Mode GND – 30 mV V min Gain = 1 or 2 AVDD + 30 mV V max Buffered Mode GND + 100 mV V min Gain = 1 or 2 AVDD – 100 mV V max In-Amp Enabled GND + 300 mV V min Gain = 4 to 128 AVDD – 1.1 V max Common Mode Voltage 0.5 V min Gain = 4 to 128 Analog Input Current Buffered Mode or In-Amp Enabled Average Input Current2 ±200 pA max Average Input Current Drift ±2 pA/°C typ Unbuffered Mode Gain = 1 or 2 Average Input Current ±400 nA/V typ Input current varies with input voltage. Average Input Current Drift ±50 pA/V/°C typ 1 nA max AIN6(+) / AIN6(-) Normal Mode Rejection2 Internal Clock @ 50 Hz, 60 Hz 70 dB min 80 dB typ, 50 ± 1 Hz, 60 ± 1 Hz, FS[3:0] = 10106 @ 50 Hz 84 dB min 90 dB typ, 50 ± 1 Hz, FS[3:0] = 10016 @ 60 Hz 90 dB min 100 dB typ, 60 ± 1 Hz, FS[3:0] = 10006 External Clock @ 50 Hz, 60 Hz 80 dB min 90 dB typ, 50 ± 1 Hz, 60 ± 1 Hz, FS[3:0] = 10106 @ 50 Hz 94 dB min 100 dB typ, 50 ± 1 Hz, FS[3:0] = 10016 @ 60 Hz Common Mode Rejection 90 dB min 100 dB typ, 60 ± 1 Hz, FS[3:0] = 10006 AIN = +FS/2 @DC 90 dB min FS[3:0] = 10106 @ 50 Hz, 60 Hz2 100 dB min 50 ± 1 Hz, 60 ± 1 Hz, FS[3:0] = 10106 @ 50 Hz, 60 Hz2 100 dB min 50 ± 1 Hz (FS[3:0] = 10016), 60 ± 1 Hz (FS[3:0] = 10006) |
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
