ISL28127_10 Datasheet, PDF (13/23 Pages) Intersil Corporation – Precision Single and Dual Low Noise Operational Amplifiers

ISL28127, ISL28227
.
V_IN-
V_IN+
Vin-
V5
24
D12
0.1V
DN ₂₅
R17
377.4
En
In+
V++
V++
R3
R4
IEE1
4
4.45k
4.45k
96E-6
5
4
CASCODE
5 _{CASCODE 6}
Q4 _Q5
D1
C4
23
2.5pF SUPERB
SUPERB
DX
Q1 Q2
C5
R1
8 ^2.5pF
5E11
7
C6
IOS
1
EOS
2pF
VCM
1E-9
Mirror
Q3
+⁺
-_-
Vc
Vmid
R2
5E11
IEE
200E-6
9
+ VOS
- ^10E-6
V--
VCM
Voltage Noise
Input Stage
V++
V++
4
5
Vc
Vmid
V--
G1
+
-
D2
10 ^DX
+
V1
R5
- ^{1.86V 1}
11
R6
G2
1
+ _V2
12 ^{- 1.86V}
D3
DX
G3
+
-
D4
13 ^DX
+
V3
R7
- ^1.86V 572.9E6
Vg
C2
R9
55.55pF 1
Vmid
G4
R8
C3
R10
+ _V4
572.9E6 55.55pF
1
14 ^{- 1.86V}
D5
VCM
DX
G5
+
-
G6
L1
3.18E-3
17
R11
1
Vc
Vg
R12
1
18
L2
3.18E-3
V--
VCM
1^ST Gain Stage
2^nd Gain Stage
Mid Supply Ref Common Mode Gain Stage
V++
V+
Vg
V-
V--
+₊
-^-
V+
E2
ISY
2.2mA
- ^- E3
+₊
V-
D8
DX
22
D6 DX ₂₀
D7
DX
21
D9
DX
23 _V5
G7
-
+
1.12V
V6
1.12V
G8
D10 ⁺
DY
-
G9
+
D11
-
DY
G10
R15
90
VOUT
R16
90
V_OUT
Supply Isolation Stage
FIGURE 28. SPICE SCHEMATIC
Output Stage
13
FN6633.3
March 18, 2010