ACPL-796J Просмотр технического описания (PDF) - Avago Technologies
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ACPL-796J Datasheet PDF : 16 Pages
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Table 7. Electrical Specifications
Unless otherwise noted, TA = –40°C to +105°C, VDD1 = 4.5 V to 5.5 V, VDD2 = 3 V to 5.5 V, VIN+ = –200 mV to +200 mV, and
VIN– = 0 V (single-ended connection); tested with Sinc3 filter, 256 decimation ratio, fMCLKIN = 10 MHz.
Parameter
Symbol Min. Typ.[1] Max. Units Test Conditions/Notes
Fig.
STATIC CHARACTERISTICS
Resolution
16
Bits
Decimation filter output set to 16 bits
Integral Nonlinearity
INL
–15 3
15
LSB
TA = –40°C to +85°C; see Definitions section
–25 3
25
LSB
TA = 85°C to 105°C
–25
25
VIN+ = –250 mV to +250mV
Differential Nonlinearity
Offset Error
Offset Drift vs.
Temperature
Offset Drift vs. VDD1
Gain Error
DNL
–0.9
0.9
VOS
–1
3
4.5
TCVOS
3.5
120
GE
–2
2
–1
1
LSB
mV
V/°C
V/V
%
%
No missing codes, guaranteed by design;
see Definitions section
TA = –40°C to +105°C; see Definitions section
TA = –40°C to +105°C, VIN+ = –250 to +250 mV;
see Definitions section
TA = 25°C, VIN+ = –250 to +250 mV
Gain Error Drift vs.
TCGE
60
Temperature
ppm/°C
Gain Error Drift vs. VDD1
ANALOG INPUTS
110
V/V
Full-Scale Differential
FSR
Voltage Input Range
±320
mV
VIN = VIN+ – VIN–; Note 2
Average Input Bias Current IINA
–0.5
A
VDD1 = 5V, VDD2 = 5V, VIN+ = 0 V; Note 3
6
Average Input Resistance RIN
33
k
Across VIN+ or VIN– to GND1; Note 3
Input Capacitance
CINA
8
DYNAMIC CHARACTERISTICS
pF
Across VIN+ or VIN– to GND1
VIN+ = –200 mV to +200 mV, 543 Hz, sine wave; Note 4
Signal-to-Noise Ratio
Signal-to-
(Noise + Distortion)
Ratio
SNR
74
80
SNDR 65
75
68
75
65
dB
TA = –40°C to +105°C; see Definitions section
dB
TA = –40°C to +105°C; see Definitions section
7, 8
dB
TA = –40°C to +85°C
7, 8
TA = –40°C to +105°C, VIN+ = –250 mV to +250 mV
7
Effective Number of Bits
ENOB
12
Bits
see Definitions section
Isolation Transient Immunity CMR
25
Common-Mode Rejection CMRR
74
Ratio
kV/V
dB
VCM = 1 kV; See Definitions section
DIGITAL INPUTS AND OUTPUTS
Input High Voltage
VIH
0.8 ×
VDD2
V
Note 5
Input Low Voltage
VIL
Input Current
IIND
0.2 × V
VDD2
±0.5
A
Note 5
Input Capacitance
Output High Voltage
CIND
VOH
VDD2
– 0.2
6
VDD2
– 0.1
pF
V
VDD2 = 5 V supply, IOUT = –200 A
VDD2 VDD2
– 0.15 – 0.1
V
VDD2 = 3.3 V supply, IOUT = –200 A
Output Low Voltage
VOL
POWER SUPPLY
VDD1 Supply Current
IDD1
VDD2 Supply Current
IDD2
0.4 V
14
19
mA
6
8
mA
IOUT = +200 A
VDD2 = 5 V supply
9, 10
11, 12
5
7
mA
VDD2 = 3.3 V supply
Notes:
1. All Typical values are at TA = 25°C, VDD1 = 5 V, VDD2 = 5 V.
2. Beyond the full-scale input range the data output is either all zeroes or all ones.
3. Because of the switched-capacitor nature of the isolated modulator, time averaged values are shown.
4. Signal frequency of 543 Hz is used as a reference frequency for coherent sampling.
5. Ensured by design.
6
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