參數(shù)資料
型號: HCPL-7870
英文描述: Isolated 15-bit A/D Converter(隔離15位A/D轉換器)
中文描述: 隔離15位A / D轉換器(隔離15位的A / D轉換器)
文件頁數(shù): 13/30頁
文件大?。?/td> 344K
代理商: HCPL-7870
13
Electrical Specifications, Isolated Modulator
Unless otherwise noted, all specifications are at V
IN+
= 0 V 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.
Parameter
Symbol Min. Typ. Max. Units
Average
Input Bias Current
I
IN
-0.8
Average Input Resistance
R
IN
450
Input DC Common-Mode
CMRR
IN
60
Rejection Ratio
Output Logic High Voltage
V
OH
3.9
4.9
Output Logic Low Voltage
V
OL
0.1
Output Short Circuit Current
|I
OSC
|
30
Input Supply Current
I
DD1
10
Output Supply Current
I
DD2
10
Output Clock Frequency
f
CLK
8.2
10
Data Hold Time
t
HDDAT
15
Test Conditions
Fig. Note
14
μ
A
k
dB
18
19
V
V
I
OUT
= -100
μ
A
I
OUT
= 1.6 mA
V
OUT
= V
DD2
or GND2
V
IN+
= -350 mV
to +350 mV
0.6
mA
mA
mA
MHz
ns
20
15
15
13.2
15
16
17
21
Notes:
14. In accordance with UL1577, for devices with minimum V
ISO
specified at 3750 V
rms
, each isolated modulator (optocoupler) is
proof-tested by applying an insulation test voltage greater than 4500 Vrms for one second (leakage current detection limit
I
I
-
O
< 5
μ
a). This test is performed before the Method b, 100% production test for partial discharge shown in VDE 0884
Insulation Characteristics Table.
15. This is a two-terminal measurement: pins 1-4 are shorted together and pins 5-8 are shorted together.
16. If V
IN-
(pin 3) is brought above V
DD1
- 2 V with respect to GND1 an internal optical-coupling test mode may be activated. This test
mode is not intended for customer use.
17. Agilent recommends the use of non-chlorinated solder fluxes.
18. Because of the switched-capacitor nature of the isolated modulator, time averaged values are shown.
19. CMRR
IN
is defined as the ratio of the gain for differential inputs applied between V
IN+
and V
IN-
to the gain for common-mode
inputs applied to both V
IN+
and V
IN-
with respect to input ground GND1.
20. Short-circuit current is the amount of output current generated when either output is shorted to V
DD2
or GND2. Use under these
conditions is not recommended.
21. Data hold time is amount of time that the data output MDAT will stay stable following the rising edge of output clock MCLK.
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