參數(shù)資料
型號: HCPL-786J-XXXE
英文描述: Optically Isolated Sigma-Delta Modulator
中文描述: 光隔離Σ-Δ調(diào)制器
文件頁數(shù): 8/18頁
文件大?。?/td> 560K
代理商: HCPL-786J-XXXE
8
Electrical Specifications (Tested with HCPL-0872 or Sinc
3
Filter)
Unless otherwise noted, all specifications are at V
IN+
= -200 mV to +200 mV and V
IN-
= 0 V; all Typical specifications are
at T
A
= 25°C and V
DD1
= V
DD2
= 5 V, and all Minimum and Maximum specifications apply over the following ranges: T
A
= -
40°C to +85°C, V
DD1
= 4.5 to 5.5 V and V
DD2
= 4.5 to 5.5 V.
STATIC CHARACTERISTICS
DYNAMIC CHARACTERISTICS (Digital Interface IC HCPL-0872 is set to Conversion Mode 3.)
Parameter
Symbol
Min.
Typ.
Max.
Units
Conditions
Fig.
Note
Signal-to-Noise Ratio
SNR
62
73
dB
V
IN+
= 35 Hz,
400 mV
pk-pk
(141 mV
rms
)
sine wave.
9,10
Total Harmonic Distortion
THD
-67
dB
Signal-to-(Noise + Distortion)
SND
66
dB
Effective Number of Bits
ENOB
10
12
bits
11
12
Conversion Time
t
C2
0.2
0.8
μs
Pre-Trigger Mode 2
1,12
13
t
C1
19
23
μs
Pre-Trigger Mode 1
1,12
13
t
C0
39
47
μs
Pre-Trigger Mode 0
1,12
Signal Delay
t
DSIG
19
23
μs
13
14
Over-Range Detect Time
t
OVR1
2.0
3.0
4.2
μs
V
IN+
= 0 to 400mV
step waveform
14
15
Threshold Detect Time
(default configuration)
t
THR1
10
μs
16
Signal Bandwidth
BW
18
22
kHz
15
17
Isolation Transient Immunity
CMR
15
20
kV/μs
V
ISO
= 1 kV
18
Parameter
Symbol
Min.
Typ.
Max.
Units
Conditions
Fig.
Note
Resolution
15
bits
7
Integral Nonlinearity
INL
3
30
LSB
5
8
0.01
0.14
%
6
8
Differential Nonlinearity
DNL
1
LSB
9
Uncalibrated Input Offset
V
OS
-3
0
3
mV
V
IN+
= 0 V
7
Offset Drift vs. Temperature
dV
OS
/dT
A
2
10
μV/°C
V
IN+
= 0 V
7
10
Offset drift vs. VDD1
dV
OS
/dV
DD1
0.12
mV/V
V
IN+
= 0 V
7
Internal Reference Voltage
V
REF
320
mV
8
Absolute Reference Voltage
Tolerance
-4
4
%
8
Reference Voltage
Matching
HCPL-7860
-1
1
%
T
A
= 25°C.
See Note 11
8
HCPL-786J
-2
2
%
V
REF
Drift vs. Temperature
dV
REF
/dT
A
60
ppm/°C.
8
V
REF
Drift vs. VDD1
dV
REF
/dV
DD1
0.2
%
8
Full Scale Input Range
-V
REF
+V
REF
mV
Recommended Input Voltage Range
-200
+200
mV
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