參數(shù)資料
型號： PGA309AIPWR
英文描述： Voltage Output PROGRAMMABLE SENSOR CONDITIONER
中文描述： 電壓輸出可編程傳感器空調(diào)
文件頁數(shù)： 3/20頁
文件大小： 298K
代理商： PGA309AIPWR
"#$%
SBOS292A DECEMBER 2003 REVISED AUGUST 2004
www.ti.com
3
ELECTRICAL CHARACTERISTICS
BOLDFACE
limits apply over the specified temperature range:
T
A
= 40
°
C to +125
°
C
TA = +25
°
C, VSA = VSD = +5V (VSA = VSUPPLY ANALOG, VSD = VSUPPLY DIGITAL; VSA must equal VSD), GNDD = GNDA = 0, and VREF = REFIN/REFOUT = +5V,
unless otherwise noted.
PGA309
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
FRONT-END PGA + OUTPUT AMPLIFIER
VOUT/VIN Differential Signal Gain Range(1)
Fine Gain Adjust = 1
Front-End PGA Gains: 4, 8, 16, 23.27, 32, 42.67, 64, 128
Output Amplifier Gains: 2, 2.4, 3, 3.6, 4.5, 6, 9
8 to 1152
V/V
VOUT Slew Rate
VOUT Settling Time (0.01%)
VOUT Settling Time (0.01%)
VOUT Nonlinearity
External Sensor Output Sensitivity
0.5
6
4.1
0.002
1 to 245
V/
μ
s
μ
s
μ
s
%FSR
mV/V
VOUT/VIN Differential Gain = 8, RL = 5k
|| 200pF
VOUT/VIN Differential Gain = 191, RL = 5k
|| 200pF
VSA = VSD = VEXC = +5V
FRONT-END PGA
Auto-Zero Internal Frequency
Offset Voltage (RTI)(2)
vs Temperature
vs Supply Voltage, VSA
vs Common-Mode Voltage
Linear Input Voltage Range(3)
Input Bias Current
Input Impedance: Differential
Input Impedance: Common-Mode
Input Voltage Noise
PGA Gain
Gain Range Steps
Initial Gain Error
7
±
3
0.2
±
2
kHz
μ
V
μ
V/
°
C
μ
V/V
μ
V/V
V
nA
G
|| pF
G
|| pF
μ
VPP
Coarse Offset Adjust Disabled
±
50
GF = Front-End PGA Gain
1500/GF
6000/GF
VSA1.5
1.5
0.2
0.1
30 || 6
50 || 20
4
0.1Hz to 10Hz, GF = 128
4, 8, 16, 23.27, 32, 42.67, 64, 128
GF = 4 to 42
GF = 64
GF = 128
4 to 128
0.2
0.25
0.3
10
V/V
%
%
%
±
1
±
1.2
±
1.6
vs Temperature
Output Voltage Range
Bandwidth
ppm/
°
C
V
kHz
kHz
0.05 to VSA 0.1
400
60
Gain = 4
Gain = 128
COARSE OFFSET ADJUST
(RTI OF FRONT-END PGA)
Range
vs Temperature
Resolution
±
(14)(VREF)(0.00085)
±
56
±
59.5
0.004
4
±
64
mV
%/
°
C
mV
±
14 steps, 4-Bit + Sign
FINE OFFSET ADJUST (ZERO DAC)
(RTO of the Front-End PGA)(2)
Programming Range
Output Range
Resolution
Integral Nonlinearity
Differential Nonlinearity
Gain Error
Gain Error Drift
Offset
Offset Drift
OUTPUT FINE GAIN ADJUST (GAIN DAC)
Range
Resolution
Integral NonLinearity
Differential NonLinearity
0
VREF
VSA0.1
V
V
μ
V
LSB
LSB
%
ppm/
°
C
mV
μ
V/
°
C
0.1
65,536 steps, 16-Bit DAC
73
20
0.5
0.1
10
5
10
0.33 to 1
10
20
0.5
V/V
μ
V/V
LSB
LSB
65,536 steps, 16-Bit DAC
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