HA-2420 데이터 시트보기 (PDF) - Harris Semiconductor
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HA-2420 Datasheet PDF : 9 Pages
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HA-2420, HA-2425
Electrical Specifications Test Conditions (Unless Otherwise Specified) VSUPPLY = ±15.0V; CH = 1000pF; Digital Input: VIL = +0.8V
(Sample), VIH = +2.0V (Hold), Unity Gain Configuration (Output tied to Negative Input) (Continued)
PARAMETER
TEST
CONDITIONS
TEMP.
HA-2420-2
(oC) MIN TYP MAX
HA-2425-5
MIN TYP MAX UNITS
Acquisition Time (Note 2)
To 0.01% 10V Step
25
-
3.2
6
-
3.2
6
µs
Hold Step Error
Hold Mode Settling Time
VIN = 0V
To ±1mV
25
-
10
20
-
10
20
mV
25
-
860
-
-
860
-
ns
Aperture Time (Note 3)
25
-
30
-
-
30
-
ns
Effective Aperture Delay Time
25
-
30
-
-
30
-
ns
Aperture Uncertainty
25
-
5
-
-
5
-
ns
Drift Current (Note 2)
HA1-2420
VIN = 0V
25
-
5
-
-
5
-
pA
Full
-
1.8
10
-
-
-
nA
HA1-2425
Full
-
-
-
-
0.1
1.0
nA
HA3-2425, HA4P2425, HA9P2425
Full
-
-
-
-
7.5 10.0 nA
POWER SUPPLY CHARACTERISTICS
Supply Current (+)
25
-
3.5
5.5
-
3.5
5.5
mA
Supply Current (-)
25
-
2.5
3.5
-
2.5
3.5
mA
Power Supply Rejection
Full
80
90
-
74
90
-
dB
NOTES:
2. AV = ±1, RL = 2kΩ, CL = 50pF.
3. Derived from computer simulation only; not tested.
Functional Diagram
OFFSET
ADJUST
V+
34
9
-INPUT 1
-
2
+
+INPUT
S/H 14
CONTROL
13
GND
-
7
+
OUT
HA-2420/2425
5
11
V-
HOLD
CAPACITOR
Test Circuits and Waveforms
INPUT
-IN
+IN
S/H
HOLD
CONTROL CAP
GND
OUTPUT
CH
S/H CONTROL
INPUT
FIGURE 1. HOLD STEP ERROR AND DRIFT CURRENT
S/H
CONTROL
HOLD
SAMPLE
OUTPUT
VSTEP
NOTE: Set rise/fall times of S/H Control to approximately 20ns.
FIGURE 2. HOLD STEP ERROR TEST
5-5
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