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AMC1304L05_15 Datasheet, PDF (6/39 Pages) Texas Instruments – AMC1304x High-Precision,Reinforced Isolated Delta-Sigma Modulators with LDO | |||
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AMC1304L05, AMC1304L25, AMC1304M05, AMC1304M25
SBAS655C â SEPTEMBER 2014 â REVISED SEPTEMBER 2015
www.ti.com
7.5 Electrical Characteristics: AMC1304x05
All minimum and maximum specifications are at TA = â40°C to 125°C, LDOIN = 4.0 V to 18.0 V, DVDD = 3.0 V to 5.5 V,
AINP = â50 mV to 50 mV, AINN = 0 V, and sinc3 filter with OSR = 256, unless otherwise noted.
Typical values are at TA = 25°C, CLKIN = 20 MHz, LDOIN = 15.0 V, and DVDD = 3.3 V.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
ANALOG INPUTS
VClipping
Maximum differential voltage input range
(AINP-AINN)
±62.5
mV
FSR
Specified linear full-scale range
(AINP-AINN)
â50
50
mV
VCM
CID
IIB
RID
IIO
CMTI
Operating common-mode input range
Differential input capacitance
Input bias current
Differential input resistance
Input offset current
Common-mode transient immunity
Inputs shorted to AGND
â0.032
1.2
V
2
pF
â97
â72
â57
μA
5
kΩ
±5
nA
15
kV/μs
CMRR
BW
Common-mode rejection ratio
Input bandwidth
fIN = 0 Hz,
VCM min ⤠VIN ⤠VCM max
fIN from 0.1 Hz to 50 kHz,
VCM min ⤠VIN ⤠VCM max
â98
dB
â85
800
kHz
DC ACCURACY
DNL
INL
Differential nonlinearity
Integral nonlinearity (1)
Resolution: 16 bits
Resolution: 16 bits
â0.99
0.99
LSB
â4
±1.5
4
LSB
EO
TCEO
EG
TCEG
PSRR
Offset error
Offset error thermal drift (2)
Gain error
Gain error thermal drift (3)
Power-supply rejection ratio
Initial, at 25°C
Initial, at 25°C
LDOIN from 4 V to 18 V, at dc
LDOIN from 4 V to 18 V, from 0.1 Hz to
50 kHz
â50
â1.3
â0.3%
â40
±2.5
â0.02%
±20
â110
â110
50
1.3
0.3%
40
µV
μV/°C
ppm/°C
dB
AC ACCURACY
SNR
Signal-to-noise ratio
SINAD
Signal-to-noise + distortion
THD
Total harmonic distortion
SFDR
Spurious-free dynamic range
DIGITAL INPUTS/OUTPUTS
fIN = 1 kHz
fIN = 1 kHz
fIN = 1 kHz
fIN = 1 kHz
76
81.5
76
81
â90
81
90
dB
dB
â81
dB
dB
External Clock
fCLKIN
DutyCLKIN
Input clock frequency
Duty cycle
5 MHz ⤠fCLKIN ⤠20.1 MHz
5
40%
20
50%
20.1
60%
MHz
(1) Integral nonlinearity is defined as the maximum deviation from a straight line passing through the end-points of the ideal ADC transfer
function expressed as a number of LSBs or as a percent of the specified linear full-scale range (FSR).
(2) Offset error drift is calculated using the box method, as described by the following equation:
TCE O
valueMAX valueMIN
TempRange
(3) Gain error drift is calculated using the box method, as described by the following equation:
TCE G ( ppm)
¨¨©§
value MAX value MIN
value u TempRange
¸¸¹· u10 6
6
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