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AD7859BS Arkusz danych(PDF) 3 Page - Analog Devices

Numer części AD7859BS
Szczegółowy opis  3 V to 5 V Single Supply, 200 kSPS8-Channel, 12-Bit Sampling ADCs
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Strona internetowa  http://www.analog.com
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AD7859BS Arkusz danych(HTML) 3 Page - Analog Devices

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REV. A
–3–
Parameter
A Version1
B Version1
Units
Test Conditions/Comments
CONVERSION RATE
tCLKIN × 18
Conversion Time
4.5 (10)
4.5
µs max
(L Versions Only, 0
°C to +70°C, 1.8 MHz CLKIN)
Track/Hold Acquisition Time
0.5 (1)
0.5
µs min
(L Versions Only, –40
°C to +85°C, 1.8 MHz CLKIN)
POWER REQUIREMENTS
AVDD, DVDD
+3.0/+5.5
+3.0/+5.5
V min/max
IDD
Normal Mode
5
5.5 (1.95)
5.5
mA max
AVDD = DVDD = 4.5 V to 5.5 V. Typically 4.5 mA
5.5 (1.95)
5.5
mA max
AVDD = DVDD = 3.0 V to 3.6 V. Typically 4.0 mA
Sleep Mode
6
With External Clock On
10
10
µA typ
Full Power-Down. Power Management Bits in Control
Register Set as PMGT1 = 1, PMGT0 = 0.
400
400
µA typ
Partial Power-Down. Power Management Bits in
Control Register Set as PMGT1 = 1, PMGT0 = 1.
With External Clock Off
5
5
µA max
Typically 1
µA. Full Power-Down. Power Management
Bits in Control Register Set as PMGT1 = 1, PMGT0 = 0.
200
200
µA typ
Partial Power-Down. Power Management Bits in
Control Register Set as PMGT1 = 1, PMGT0 = 1.
Normal Mode Power Dissipation
30 (10)
30 (10)
mW max
VDD = 5.5 V: Typically 25 mW (8); SLEEP = VDD
20 (6.5)
20 (6.5)
mW max
VDD = 3.6 V: Typically 15 mW (5.4); SLEEP = VDD
Sleep Mode Power Dissipation
With External Clock On
55
55
µW typ
VDD = 5.5 V; SLEEP = 0 V
36
36
µW typ
VDD = 3.6 V; SLEEP = 0 V
With External Clock Off
27.5
27.5
µW max
VDD = 5.5 V: Typically 5.5 µW; SLEEP = 0 V
18
18
µW max
VDD = 3.6 V: Typically 3.6
µW; SLEEP = 0 V
SYSTEM CALIBRATION
Offset Calibration Span
7
+0.05
× V
REF/–0.05 × VREF
V max/min
Allowable Offset Voltage Span for Calibration
Gain Calibration Span
7
+1.025
× V
REF/–0.975
× V
REF V max/min
Allowable Full-Scale Voltage Span for Calibration
NOTES
1Temperature range as follows: A, B Versions, –40
°C to +85°C.
2Specifications apply after calibration.
3SNR calculation includes distortion and noise components.
4Not production tested, guaranteed by characterization at initial product release.
5All digital inputs @ DGND except for CONVST, SLEEP, CAL, and SYNC @ DV
DD. No load on the digital outputs. Analog inputs @ AGND.
6CLKIN @ DGND when external clock off. All digital inputs @ DGND except for CONVST, SLEEP, CAL, and SYNC @ DV
DD. No load on the digital outputs.
Analog inputs @ AGND.
7The offset and gain calibration spans are defined as the range of offset and gain errors that the AD7859/AD7859L can calibrate. Note also that these are voltage spans
and are not absolute voltages (i.e., the allowable system offset voltage presented at AIN(+) for the system offset error to be adjusted out will be AIN(–)
± 0.05 × V
REF,
and the allowable system full-scale voltage applied between AIN(+) and AIN(–) for the system full-scale voltage error to be adjusted out will be VREF
± 0.025 × V
REF).
This is explained in more detail in the calibration section of the data sheet.
Specifications subject to change without notice.
AD7859/AD7859L


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