参数资料
型号: TLV1570CPWR
厂商: TEXAS INSTRUMENTS INC
元件分类: ADC
英文描述: 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封装: GREEN, TSSOP-20
文件页数: 5/32页
文件大小: 634K
代理商: TLV1570CPWR
TLV1570
2.7 V TO 5.5 V 8-CHANNEL 10-BIT 1.25-MSPS
SERIAL ANALOG-TO-DIGITAL CONVERTER
SLAS169B – DECEMBER 1997– REVISED OCTOBER 2000
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics, over recommended operating free-air temperature range, supply
voltages, and reference voltages (unless otherwise noted) (continued)
dc specifications
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
10
Bits
Accuracy
Integral nonlinearity, INL
Best fit
±0.6
±1
LSB
Differential nonlinearity, DNL
±0.65
±1
LSB
EO
Offset error
±0.1
±0.15 %FSR
EG
Gain error
±0.1
±0.2 %FSR
Analog input
Ci
Input capacitance
15
20
pF
Ilkg
Input leakage current
VAIN = 0 V to AVDD
±1
A
Ri(MUX)
Input MUX ON resistance
DVDD = 3 V,
AVDD = 3 V
265
780
Ri(MUX)
Input MUX ON resistance
DVDD = 5 V,
AVDD = 5 V
235
450
Ri(ADC)
Input MUX ON resistance
DVDD = 3 V,
AVDD = 3 V
158
465
Ri(ADC)
Input MUX ON resistance
DVDD = 5 V,
AVDD = 5 V
140
268
Voltage reference
REF
Internal reference voltage
Internal reference mode, VDD = 3 V
2.08
2.26
2.48
V
REF
Internal reference voltage
Internal reference mode, VDD = 5 V
3.48
3.82
4.15
V
Temperature coefficient
100
ppm/
°C
ri
Input resistance
External reference mode
3
k
Ci(VR)
Input capacitance
External reference mode
300
pF
Power supply
IDD +IREF Operating supply current
AVDD = 2.7 V, DVDD = 2.7 V, fSCLK = 10 MHz
3
5
mA
IDD + IREF Operating supply current
AVDD = 5.5 V, DVDD = 5.5 V, fSCLK = 20 MHz
7.2
8.5
mA
PD
Power dissipation
AVDD = 2.7 V, DVDD = 2.7 V
8
13
mW
PD
Power dissi ation
AVDD = 5.5 V, DVDD = 5.5 V
40
47
mW
AVDD=2 7V
CS = AVDD
3
10
A
Software
IDD +IREF
AVDD = 2.7 V
CS = AGND
500
A
Supply current in
Software
IDD + IREF
AVDD=5 5V
CS = AVDD
3
10
A
y
power down
AVDD = 5.5 V
CS = AGND
2000
A
Auto
IDD +IREF
AVDD = 2.7V
175
275
A
Auto
IDD + IREF
AVDD = 5.5V
200
300
A
IREF = 0.7 mA typ.
IREF = 1.5 mA typ.
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