AMC1304L05-Q1 Datasheet, PDF (10/39 Pages) Texas Instruments – High-Precision, Reinforced Isolated Delta-Sigma Modulators with LDO

AMC1304L05-Q1, AMC1304L25-Q1, AMC1304M05-Q1, AMC1304M25-Q1
SBAS799 – FEBRUARY 2017
www.ti.com
7.10 Electrical Characteristics: AMC1304x25-Q1
All minimum and maximum specifications are at T_A = –40°C to 125°C, LDOIN = 4.0 V to 18.0 V, DVDD = 3.0 V to 5.5 V,
AINP = –250 mV to 250 mV, AINN = 0 V, and sinc³ filter with OSR = 256, unless otherwise noted. Typical values are at T_A
= 25°C, CLKIN = 20 MHz, LDOIN = 15.0 V, and DVDD = 3.3 V.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ANALOG INPUTS
V_Clipping
Maximum differential voltage input range
(AINP-AINN)
±312.5
mV
FSR
Specified linear full-scale range
(AINP-AINN)
–250
250
mV
V_CM
C_ID
I_IB
R_ID
I_IO
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
–0.16
1
–82
–60
25
±5
15
1.2
V
pF
–48
μA
kΩ
nA
kV/μs
CMRR
BW
Common-mode rejection ratio
Input bandwidth
f_IN = 0 Hz,
V_{CM min} ≤ V_IN ≤ V_{CM max}
f_IN from 0.1 Hz to 50 kHz,
V_{CM min} ≤ V_IN ≤ V_{CM max}
–98
dB
–98
1000
kHz
DC ACCURACY
DNL
INL
Differential nonlinearity
Integral nonlinearity⁽¹⁾
Resolution: 16 bits
Resolution: 16 bits
–0.99
–4
±1.5
0.99
LSB
4
LSB
E_O
TCE_O
E_G
TCE_G
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
–100
–1.3
–0.2%
–40
±25
–0.05%
±20
–110
–110
100
1.3
0.2%
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
f_IN = 1 kHz
f_IN = 1 kHz
f_IN = 1 kHz
f_IN = 1 kHz
82
85
80
84
–90
81
90
dB
dB
–81
dB
dB
External Clock
f_CLKIN
Duty_CLKIN
Input clock frequency
Duty cycle
5 MHz ≤ f_CLKIN ≤ 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 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
value_MAX value_MIN
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}
.
10
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