ELECTRICAL CHARACTERISTICS The l denotes the spe" />
參數(shù)資料
型號: LT1970CFE#TRPBF
廠商: Linear Technology
文件頁數(shù): 20/26頁
文件大小: 0K
描述: IC OPAMP ADJ CURR LIMIT 20-TSSOP
標準包裝: 2,500
放大器類型: 通用
電路數(shù): 1
轉(zhuǎn)換速率: 1.6 V/µs
增益帶寬積: 3.6MHz
電流 - 輸入偏壓: 160nA
電壓 - 輸入偏移: 200µV
電流 - 電源: 7mA
電流 - 輸出 / 通道: 800mA
電壓 - 電源,單路/雙路(±): 5 V ~ 36 V,±2.5 V ~ 18 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)裸露焊盤
供應商設(shè)備封裝: 20-TSSOP-EP
包裝: 帶卷 (TR)
LT1970
3
1970fc
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. See Test Circuit for standard test conditions.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RIN
Input Resistance
Common Mode
Differential Mode
500
100
CIN
Input Capacitance
Pin 8 and Pin 9 to Ground
6
pF
VCM
Input Voltage Range
Typical
Guaranteed by CMRR Test
l
–14.5
–12.0
13.6
12.0
V
CMRR
Common Mode Rejection Ratio
–12V < VCM < 12V
l
92
105
dB
PSRR
Power Supply Rejection Ratio
VEE = V= –5V, VCC = V+ = 3V to 30V
VEE = V= –5V, VCC = 30V, V+ = 2.5V to 30V
VEE = V= –3V to – 30V, VCC = V+ = 5V
VEE = –30V, V= –2.5V to –30V, VCC = V+ = 5V
l
90
110
90
110
100
130
100
130
dB
AVOL
Large-Signal Voltage Gain
RL = 1k, –12.5V < VOUT < 12.5V
l
100
75
150
V/mV
RL = 100Ω, –12.5V < VOUT < 12.5V
l
80
40
120
V/mV
RL = 10Ω, –5V < VOUT < 5V, V+ = – V= 8V
l
20
5
45
V/mV
VOL
Output Sat Voltage Low
VOL = VOUT – V
RL = 100, VCC = V+ = 15V, VEE = V= –15V
RL = 10, VCC = – VEE = 15V, V+ = –V= 5V
l
1.9
0.8
2.5
V
VOH
Output Sat Voltage High
VOH = V+ – VOUT
RL = 100, VCC = V+ = 15V, VEE = V= –15V
RL = 10, VCC = – VEE = 15V, V+ = –V= 5V
l
1.7
1.0
2.3
V
ISC
Output Short-Circuit Current
Output Low, RSENSE = 0Ω
Output High, RSENSE = 0Ω
500
–1000
800
–800
1200
–500
mA
SR
Slew Rate
–10V < VOUT < 10V, RL = 1k
0.7
1.6
V/μs
FPBW
Full Power Bandwidth
VOUT = 10VPEAK (Note 5)
11
kHz
GBW
Gain Bandwidth Product
f = 10kHz
3.6
MHz
tS
Settling Time
0.01%, VOUT = 0V to 10V, AV = –1, RL = 1k
8
μs
Current Sense Characteristics
VSENSE(MIN) Minimum Current Sense Voltage
VCSRC = VCSNK = 0V
l
0.1
47
10
mV
VSENSE(4%) Current Sense Voltage 4% of Full Scale
VCSRC = VCSNK = 0.2V
l
15
20
25
mV
VSENSE(10%) Current Sense Voltage 10% of Full Scale
VCSRC = VCSNK = 0.5V
l
45
50
55
mV
VSENSE(FS)
Current Sense Voltage 100% of Full Scale
VCSRC = VCSNK = 5V
l
490
480
500
510
520
mV
IBI
Current Limit Control Input Bias Current
VCSRC, VCSNK Pins
l
–1
–0.2
0.1
μA
ISENSE
SENSEInput Current
0V < (VCSRC, VCSNK) < 5V
l
–500
500
nA
IFILTER
FILTER Input Current
0V < (VCSRC, VCSNK) < 5V
l
–500
500
nA
ISENSE+
SENSE+ Input Current
VCSRC= VCSNK = 0V
VCSRC = 5V, VCSNK = 0V
VCSRC= 0V, VCSNK = 5V
VCSRC = VCSNK = 5V
l
–500
200
–300
–25
250
–250
500
300
–200
25
nA
Current Sense Change with Output Voltage VCSRC = VCSNK = 5V, –12.5V < VOUT < 12.5V
±0.1
%
Current Sense Change with Supply Voltage VCSRC = VCSNK = 5V, 6V < (VCC, V+) < 18V
2.5V < V+ < 18V, VCC = 18V
–18V < (VEE, V) < –2.5V
–18V < V< –2.5V, VEE = –18V
±0.05
±0.01
±0.05
±0.01
%
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