VOSDIFF
參數(shù)資料
型號(hào)： LT1994CDD#TRPBF
廠商： Linear Technology
文件頁(yè)數(shù)： 14/20頁(yè)
文件大?。?/td> 0K
描述： IC DIFF AMP/DRIVER LN 8-DFN
標(biāo)準(zhǔn)包裝： 2,500
放大器類型： 差分
電路數(shù)： 1
輸出類型： 滿擺幅
轉(zhuǎn)換速率： 65 V/µs
增益帶寬積： 70MHz
電流 - 輸入偏壓： 18µA
電壓 - 輸入偏移： 3000µV
電流 - 電源： 14.8mA
電流 - 輸出 / 通道： 85mA
電壓 - 電源，單路/雙路(±)： 2.375 V ~ 12.6 V，±1.188 V ~ 6.3 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 8-WFDFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 8-DFN-EP（3x3）
包裝： 帶卷 (TR)
3
1994fb
LT1994
SYMBOL
PARAMETER
CONDITIONS
C/I GRADES
H/MP GRADES
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
VOSDIFF
Differential Offset Voltage
(Input Referred)
VS = 2.375V, VICM = VS/4
VS = 3V
VS = 5V
VS = ±5V
l
±2
±3
±2
±3
mV
ΔVOSDIFF/ΔT Differential Offset Voltage Drift
(Input Referred)
VS = 2.375V, VICM = VS/4
VS = 3V
VS = 5V
VS = ±5V
3
μV/°C
IB
Input Bias Current (Note 6)
VS = 2.375V, VICM = VS/4
VS = 3V
VS = 5V
VS = ±5V
l
–45
–18
–3
–45
–18
–3
μA
IOS
Input Offset Current (Note 6)
VS = 2.375V, VICM = VS/4
VS = 3V
VS = 5V
VS = ±5V
l
±0.2
±2
±3
±4
±0.2
±2
±3
±4
μA
RIN
Input Resistance
Common Mode
Differential Mode
700
4.5
700
4.5
k
Ω
k
Ω
CIN
Input Capacitance
Differential
2
pF
en
Differential Input Referred Noise
Voltage Density
f = 50kHz
3
nV/√Hz
in
Input Noise Current Density
f = 50kHz
2.5
pA/√Hz
enVOCM
Input Referred Common Mode Output
Noise Voltage Density
f = 50kHz, VOCM Shorted to Ground
15
nV/√Hz
VICMR
(Note 7)
Input Signal Common Mode Range
VS = 3V
VS = ±5V
l
0
–5
1.75
3.75
0
–5
1.75
3.75
V
CMRRI
(Note 8)
Input Common Mode Rejection Ratio
(Input Referred)
ΔVICM/ΔVOSDIFF
VS = 3V, ΔVICM = 0.75V
l
55
85
55
85
dB
CMRRIO
(Note 8)
Output Common Mode Rejection Ratio
(Input Referred)
ΔVOCM/ΔVOSDIFF
VS = 5V, ΔVOCM = 2V
l
65
85
65
85
dB
PSRR
(Note 9)
Differential Power Supply Rejection
(
ΔVS/ΔVOSDIFF)
VS = 3V to ±5V
l
69
105
69
105
dB
PSRRCM
(Note 9)
Output Common Mode Power Supply
Rejection (
ΔVS/ΔVOSCM)
VS = 3V to ±5V
l
45
70
45
70
dB
GCM
Common Mode Gain (ΔVOUTCM/ΔVOCM) VS = ±2.5V
l
1V/V
Common Mode Gain Error
100 (GCM – 1)
VS = ±2.5V
l
–0.15
±1
%
BAL
Output Balance (
ΔVOUTCM/ΔVOUTDIFF)
ΔVOUTDIFF = 2V
Single-Ended Input
Differential Input
l
–65
–71
–46
–50
–65
–71
–46
–50
dB
VOSCM
Common Mode Offset Voltage
(VOUTCM – VOCM)
VS = 2.375V, VICM = VS/4
VS = 3V
VS = 5V
VS = ±5V
l
±2.5
±25
±30
±40
±2.5
±25
±30
±40
mV
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. V+ = 3V, V– = 0V, VCM = VOCM = VICM = mid-supply, VSHDN = OPEN,
RI = RF = 499Ω, RL = 800Ω to a mid-supply voltage (See Figure 1) unless otherwise noted. VS is dened (V+ – V–). VOUTCM is dened
as (VOUT+ + VOUT–)/2. VICM is dened as (VIN+ + VIN–)/2. VOUTDIFF is dened as (VOUT+ – VOUT–). VINDIFF is dened as (VIN+ – VIN–).
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