參數(shù)資料
型號: AD7877ACPZ-REEL7
廠商: ANALOG DEVICES INC
元件分類: 消費家電
英文描述: 16-Bit, Pseudo Bipolar, Fully Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC 8-MSOP -40 to 85
中文描述: SPECIALTY CONSUMER CIRCUIT, QCC32
封裝: 5 X 5 MM, ROHS COMPLIANT, MO-220VHHD-2, LFCSP-32
文件頁數(shù): 3/44頁
文件大?。?/td> 1002K
代理商: AD7877ACPZ-REEL7
AD7877
SPECIFICATIONS
V
CC
= 2.7 V to 3.6 V, V
REF
= 2.5 V internal or external, f
DCLK
= 2 MHz, T
A
= 40°C to +85°C, unless otherwise noted.
Table 1.
Parameter
Min
Typ
ADC
DC ACCURACY
Resolution
12
No Missing Codes
11
12
Integral Nonlinearity
1
Differential Nonlinearity
1
Offset Error
1
±2
Gain Error
1
Noise
70
Power Supply Rejection
70
Internal Clock Ffrequency
2
SWITCH DRIVERS
On Resistance
1
Y+, X+
14
Y, X
14
ANALOG INPUTS
Input Voltage Ranges
0
DC Leakage Current
±0.1
Input Capacitance
30
Accuracy
0.3
REFERENCE INPUT/OUTPUT
Internal Reference Voltage
2.44
Internal Reference Tempco
±50
V
REF
Input Voltage Range
1
DC Leakage Current
V
REF
Input Impedance
1
Rev. A | Page 3 of 44
Max
Unit
Test Conditions/Comments
±2
0.99/+2
±6
±4
Bits
Bits
LSB
LSB
LSB
LSB
μV rms
dB
MHz
LSB size = 610 μV
LSB size = 610 μV
V
CC
= 2.7 V
External reference
V
REF
2.55
V
CC
±1
V
μA
pF
%
V
ppm/°C
V
μA
G
All channels, internal V
REF
CS = GND or V
CC
; typically 25 when on-board
reference enabled
Calibrated at 25°C
@V
REF
= 2.5 V
Sampling, 1 G when battery monitor off
External/internal reference, see Figure 25
TEMPERATURE MEASUREMENT
Temperature Range
Resolution
Differential Method
2
Single Conversion Method
3
Accuracy
Differential Method
2
Single Conversion Method
3
BATTERY MONITOR
Input Voltage Range
Input Impedance
Accuracy
40
1.6
0.3
±4
±2
14
1
+85
5
3.2
°C
°C
°C
°C
°C
V
k
%
0.5
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