ISL76627 Datasheet, PDF (12/18 Pages) Intersil Corporation – Precision Low Noise Operational Amplifier

ISL76627
.
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
5E11
8 ^2.5pF
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++
G1
D2
4
+
-
10 ^DX
+
V1
R5
- ^{1.86V 1}
5
11
Vc
G3
+
-
D4
13 ^DX
+
V3
R7
C2
R9
- ^1.86V 572.9E6 ^{55.55pF 1}
Vg
Vmid
G5
+
-
L1
3.18E-3
17
R11
1
Vc
Vg
Vmid
V--
R6
G2
1
+ _V2
12 ^{- 1.86V}
D3
DX
G4
R8
C3
R10
G6
+ _V4
572.9E6 55.55pF ¹
14 ^{- 1.86V}
D5
VCM
DX
R12
1
18
L2
3.18E-3
V--
VCM
1ST GAIN STAGE
2ND GAIN STAGE
MID SUPPLY REF COMMON MODE GAIN STAGE
V++
V+
Vg
V-
V--
+₊
-^-
V+
E2
ISY
2.2mA
- ^- E3
+₊
V-
D8
D9
G7
DX
22
D6
DX
20
DX
-
23 _V5
+
1.12V
R15
90
VOUT
V_OUT
D7
DX
21
V6
1.12V
R16
G8
90
D10 ⁺
DY
-
G9
+
D11
-
DY
G10
SUPPLY ISOLATION STAGE
FIGURE 30. SPICE SCHEMATIC
OUTPUT STAGE
12
FN7725.0
July 12, 2011