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参数资料
| 型号： | THS1240IPHP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | ADC |
| 英文描述： | 1-CH 12-BIT DELTA-SIGMA ADC, PARALLEL ACCESS, PQFP48 |
| 封装： | POWER, PLASTIC, TQFP-48 |
| 文件页数： | 15/20页 |
| 文件大小： | 450K |
| 代理商： | THS1240IPHP |
THS1240
12-BIT 40 MSPS IF SAMPLING COMMUNICATIONS
ANALOG-TO-DIGITAL CONVERTER
SLAS279D – JUNE 2000 – REVISED JANUARY 2001
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range,
AVDD = DVDD = 5 V, DRVDD = 3.3 V, internal references, CLK = 40 MHz, single-ended clock source
at 40 MHz with 50% duty cycle (unless otherwise noted)
dc accuracy
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DNL
Differential nonlinearity
fIN = 15.5 MHz
–1
±0.6
1.25
LSB
No missing codes
Assured
INL
Integral nonlinearity
fIN = 15.5 MHz
±2
LSB
EO
Offset error
V(VIN+) = V(VIN_) = VCM
14
70
mV
EG
Gain error
– 7
– 10
%FSR
All typical values are at TA = 25°C.
power supply
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I(AVDD)
Analog supply current
V(VIN) = (VCM)
73
110
mA
I(DVDD)
Digital supply current
V(VIN) = (VCM)
2
4
mA
I(DRVDD) Output driver supply current
V(VIN) = (VCM)
2
7
mA
PD
Power dissipation
V(VIN) = (VCM)
380
mW
All typical values are at TA = 25°C.
15 pF load on digital outputs
reference
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VREFOUT –
Negative reference output voltage
1.9
2
2.1
V
VREFOUT+
Positive reference output voltage
2.9
3
3.1
V
VREFIN –
External reference supplied
2
V
VREFIN+
External reference supplied
3
V
V(VCM)
Common mode output voltage
AVDD/2
V
I(VCM)
Common mode output current
80
A
All typical values are at TA = 25°C.
analog input
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
RI
Differential input resistance
1
k
CI
Differential input capacitance
4
pF
VI
Analog input common mode range
VCM ± 0.05
V
VID
Differential input voltage range
2
Vp-p
BW
Analog input bandwidth (large signal)
–3 dB
120
MHz
All typical values are at TA = 25°C.
digital outputs
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
IOH = – 50 A
0.8DRVDD
V
VOL
Low-level output voltage
IOL = 50 A
0.2DRVDD
VDD
CL
Output load capacitance
15
pF
All typical values are at TA = 25°C.
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