參數(shù)資料
型號(hào): EVAL-AD7796EBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 19/24頁(yè)
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD7796
標(biāo)準(zhǔn)包裝: 1
ADC 的數(shù)量: 1
位數(shù): 16
采樣率(每秒): 123
數(shù)據(jù)接口: 串行
輸入范圍: ±VREF/128
在以下條件下的電源(標(biāo)準(zhǔn)): 1.6mW @ 123SPS
工作溫度: -40°C ~ 85°C
已用 IC / 零件: AD7796
已供物品: 板,CD
相關(guān)產(chǎn)品: AD7796BRUZ-REEL-ND - IC ADC 16BIT SIG-DEL 1CH 16TSSOP
AD7796BRUZ-ND - IC ADC 16BIT SIG-DEL 1CH 16TSSOP
AD7796/AD7797
Rev. A | Page 4 of 24
Parameter
AD7796B/AD7797B1
Unit
Test Conditions/Comments
INTERNAL/EXTERNAL CLOCK
Internal Clock
Frequency2
64 ± 3%
kHz min/max
Duty Cycle
50:50
% typ
External Clock
Frequency
64
kHz nom
A 128 kHz clock can be used if the divide by 2
function is used (Bit CLK1 = CLK0 = 1)
Duty Cycle
45:55 to 55:45
% typ
Applies for external 64 kHz clock (a 128 kHz
clock can have a less stringent duty cycle)
LOGIC INPUTS
Input Low Voltage, VINL
0.8
V max
DVDD = 5 V
0.4
V max
DVDD = 3 V
Input High Voltage, VINH
2.0
V min
DVDD = 3 V or 5 V
SCLK, CLK, and
DIN (Schmitt-Triggered Input)2
VT(+)
1.4/2
V min/V max
DVDD = 5 V
VT(–)
0.8/1.7
V min/V max
DVDD = 5 V
VT(+) VT(–)
0.1/0.17
V min/V max
DVDD = 5 V
VT(+)
0.9/2
V min/V max
DVDD = 3 V
VT(–)
0.4/1.35
V min/V max
DVDD = 3 V
VT(+)
VT(–)
0.06/0.13
V min/V max
DVDD = 3 V
Input Currents
±10
μA max
VIN = DVDD or GND
Input Capacitance
10
pF typ
All digital inputs
LOGIC OUTPUTS (INCLUDING CLK)
Output High Voltage, VOH2
DVDD 0.6
V min
DVDD = 3 V, ISOURCE = 100 μA
4
V min
DVDD = 5 V, ISOURCE = 200 μA
Output Low Voltage, VOL2
0.4
V max
DVDD = 3 V, ISINK = 100 μA
0.4
V max
DVDD = 5 V, ISINK = 1.6 mA (DOUT/RDY)/800 μA (CLK)
Floating-State Leakage Current
±10
μA max
Floating-State Output Capacitance
10
pF typ
Data Output Coding
Offset Binary
SYSTEM CALIBRATION2
Full-Scale Calibration Limit
+1.05 × FS
V max
Zero-Scale Calibration Limit
1.05 × FS
V min
Input Span
0.8 × FS
V min
2.1 × FS
V max
POWER REQUIREMENTS7
Power Supply Voltage
AVDD – GND
2.7/5.25
V min/max
DVDD – GND
2.7/5.25
V min/max
Power Supply Currents
IDD Current
325
μA max
250 μA typ @ AVDD = 3 V, 280 μA typ @ AVDD = 5 V
IDD (Power-Down Mode)
1
μA max
1 Temperature range is –40°C to +85°C.
2 Specification is not production tested, but is supported by characterization data at initial product release.
3 Following a calibration, this error is in the order of the noise for the update rate selected.
4 Recalibration at any temperature removes these errors.
5 Full-scale error applies to both positive and negative full-scale and applies at the factory calibration conditions (AVDD = 4 V, TA = 25°C).
6 FS[3:0] are the four bits used in the mode register to select the output word rate.
7 Digital inputs equal to DVDD or GND.
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