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AMC7812SPAPR 数据表(PDF) 4 Page - Texas Instruments

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部件名 AMC7812SPAPR
功能描述  12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

AMC7812SPAPR 数据表(HTML) 4 Page - Texas Instruments

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AMC7812
SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
At TA = –40°C to +105°C, AVDD = DVDD = 4.5V to 5.5V, AVCC = +15V, AGND = DGND = 0V, IOVDD = 2.7V to 5.5V, internal
2.5V reference, and the DAC output span = 0V to 5V, unless otherwise noted.
AMC7812
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INTERNAL REFERENCE
Output voltage
TA = +25°C, REF-OUT pin
2.495
2.5
2.505
V
Output impedance
0.4
Ω
Reference temperature coefficient
10
25
ppm/°C
Output current (sourcing/sinking)
±5
mA
TA = +25°C, f = 1kHz
260
nV/
√Hz
Output voltage noise
f = 0.1Hz to 10Hz
13
µVPP
ADC PERFORMANCE
ADC DC ACCURACY (for AVDD = 5V)
Resolution
12
Bits
INL
Integral nonlinearity
±0.5
±1
LSB
DNL
Differential nonlinearity
±0.5
±1
LSB
Single-Ended Mode
Offset error
±1
±3
LSB
Offset error match
±0.4
LSB
Gain error
External reference
±1
±5
LSB
Gain error match
±0.4
LSB
Differential Mode
External reference, 0V to (2 · VREF) mode, VCM =
±2
±5
LSB
2.5V
Gain error
External reference, 0V to VREF mode,
±1
±5
LSB
VCM = 1.25V
Gain error match
±0.5
LSB
0V to (2 · VREF) mode, VCM = 2.5V
±1
±3
LSB
Zero code error
External reference, 0V to VREF mode,
±1
±3
LSB
VCM = 1.25V
Zero code error match
±0.5
LSB
Common mode rejection
DC, 0V to (2 · VREF) mode
67
dB
SAMPLING DYNAMICS
External single analog channel, auto mode
500
kSPS
Conversion rate
External single analog channel, direct mode
167
kSPS
Conversion time(4)
External single analog channel
2
µs
Autocycle update rate(4)
All 16 single-ended inputs enabled
32
µs
Throughput rate
SPI clock 12MHz or greater, single channel
500
kSPS
ANALOG INPUT(5)
Single-ended, 0V to VREF
0
VREF
V
Single-ended, 0V to (2 · VREF)
0
2 · VREF
V
Full-scale input voltage
VIN+ – VIN-, fully-differential, 0V to VREF
–VREF
+VREF
V
VIN+ – VIN-, fully-differential, 0V to (2 · VREF)
–2 · VREF
2 · VREF
V
Absolute input voltage
GND - 0.2
AVDD + 0.2
V
0V to VREF mode
118
Input capacitance(4)
pF
0V to (2 · VREF) mode
73
DC input leakage current
Unselected ADC input
±10
µA
(4)
Sampled during initial release to ensure compliance; not subject to production testing.
(5)
VIN+ or VIN– must remain within GND - 0.2V and AVDD + 0.2V. See Analog Inputs section.
4
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Copyright © 2011–2013, Texas Instruments Incorporated
Product Folder Links: AMC7812


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