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參數(shù)資料
型號： MCP6N11-005E/SN
廠商： Microchip Technology
文件頁數(shù)： 2/50頁
文件大小： 0K
描述： IC AMP INSTR RRIO 8SOIC
標(biāo)準(zhǔn)包裝： 100
放大器類型： 儀表
電路數(shù)： 1
輸出類型： 滿擺幅
轉(zhuǎn)換速率： 9 V/µs
增益帶寬積： 2.5MHz
電流 - 輸入偏壓： 10pA
電壓 - 輸入偏移： 850µV
電流 - 電源： 800µA
電流 - 輸出 / 通道： 30mA
電壓 - 電源，單路/雙路(±)： 1.8 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOICN
包裝： 管件
MCP6N11
DS25073A-page 10
2011 Microchip Technology Inc.
1.5
Explanation of DC Error Specs
1.5.1
INPUT OFFSET RELATED ERRORS
The input offset error (VE) is extracted from input offset
EQUATION 1-4:
VE has several terms, which assume a linear response
to changes in VDD, VSS, VCM, VOUT and TA (all of which
are in their specified ranges):
EQUATION 1-5:
Equation 1-2 shows how VE affects VOUT.
1.5.2
INPUT OFFSET COMMON MODE
NON-LINEARITY
The input offset error (VE) changes non-linearly with
VCM. Figure 1-8 shows VE vs. VCM, as well as a linear
fit line (VE_LIN) based on VOS and CMRR. The op amp
is in standard conditions (
ΔVOUT =0, VDM =0, etc.).
VCM is swept from VIVL to VIVH. The test circuit is in
calculated using Equation 1-4.
FIGURE 1-8:
Input Offset Error vs.
Common Mode Input Voltage.
Based on the measured VE data, we obtain the
following linear fit:
EQUATION 1-6:
The remaining error (
ΔVE) is described by the Common
Mode Non-Linearity spec:
EQUATION 1-7:
The same common mode behavior applies to VE when
VREF is swept, instead of VCM, since both input stages
are designed the same:
EQUATION 1-8:
1.5.3
DIFFERENTIAL GAIN ERROR AND
NON-LINEARITY
The differential errors are extracted from differential
gain measurements (see Section 1.4.2 “Differential
errors are the differential gain error (gE) and the input
offset error (VE, which changes non-linearly with VDM):
EQUATION 1-9:
These errors are adjusted for the expected output, then
referred back to the input, giving the differential input
error (VED) as a function of VDM:
EQUATION 1-10:
V
E
V
M
V
REF
–
G
DM 1gE
+
()
---------------------------------
=
Where:
PSRR
, CMRR and A
OL are in units of V/V
ΔT
A is in units of °C
VDM =0
V
E
V
OS
ΔV
DD
ΔV
SS
–
PSRR
---------------------------------
ΔV
CM
CMRR
-----------------
ΔV
REF
CMRR
-----------------
++
+
=
ΔV
OUT
A
OL
-----------------
ΔT
A
ΔV
OS
ΔT
A
-------------
++
V1
V3
VE, VE_LIN (V)
VCM (V)
VIVL
VIVH
VDD/2
V2
VE_LIN
VE
ΔVE
Where:
V
E_LIN
V
OS
V
CM
V
DD 2
–
CMRR
-----------------------------------
+
=
V
OS
V
2
=
1
CMRR
-----------------
V
3
V
1
–
V
IV H
V
IVL
–
------------------------------
=
Where:
INL
CM
max
ΔV
E
V
IVH
V
IV L
–
------------------------------
=
ΔV
E
V
E
V
E_LIN
–
=
V
E_LIN
V
OS
V
REF
V
DD 2
–
CMRR
-------------------------------------
+
=
INL
CM
max
ΔV
E
V
IVH
V
IVL
–
------------------------------
=
G
DM
1R
F RG
+
=
V
M
G
DM 1gE
+
() V
DM
V
+
E
()
=
V
ED
V
M
G
DM
------------V
DM
–
=
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