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參數(shù)資料
| 型號(hào)： | LT6700IS6-2 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Micropower, Low Voltage, SOT-23, Dual Comparator with 400mV Reference |
| 中文描述： | DUAL COMPARATOR, 29000 ns RESPONSE TIME, PDSO6 |
| 封裝： | 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN |
| 文件頁(yè)數(shù)： | 11/12頁(yè) |
| 文件大?。?/td> | 237K |
| 代理商： | LT6700IS6-2 |
LT6700-1/LT6700-2/LT6700-3
11
6700123fb
APPLICATIU
W
U
U
LT6700-1
V
S
10k
GND
1
5
+INA
–INB OUTB
OUTA
2
6
3
4
100k*
100k*
0.22
μ
F
+
V
IN
412k*
10k**
470
Lithium
COIN CELL
10k
10k
750
10k
750**
1
3V/5V
3V/5V
Σ
SAMPLE
IN
MOC-207
MOC-207**
PWM OUT
(OR
Σ
SENSE)
2
1
5
6
5
6
2
0.1
μ
F
0.1
μ
F
3V NOM (I
S
< 3mA)
5 V
REF
= 2V
6700123 F03
22
μ
F
1% METAL FILM
DELETE FOR PWM MODE
CONNECT FOR PWM MODE
OPTIMIZED FOR 2kHz
Σ
SAMPLING, f
PWM(MAX)
≈
0.6kHz
*
**
309k*
NC7S14
309k*
0V TO 2V
+
Figure 3. Isolated PWM or
Σ
Converter
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
APPLICATIU
W
U
U
ence, rather like an isolated instrumentation amplifier. The
section B comparator is used to generate a 2V reference
supply level for the CMOS NOT gate (inverter), which
serves as the precision switch element for the charge
balancer. The heart of the charge balancer is the section A
comparator, which is detecting slight charge or discharge
states on the 0.22
μ
F “integration” capacitor as it remains
balanced at
≈
400mV by feedback through the NOT gate.
The input sense voltage, V
IN
, is converted to an imbalance
current that the NOT gate duty cycle is continually correct-
ing for, thus the digital waveform at the section A com-
parator output is a PWM representation of V
IN
with respect
to the 2V “full scale.” In this particular circuit, the PWM
information drives the LED of an optocoupler, allowing the
V
IN
information to be coupled across a dielectric barrier.
As an additional option to the circuit, the feedback loop can
be broken and a second optocoupler employed to provide
the charge balance management. This configuration al-
lows for clocking the comparator output (externally to this
circuit) and providing synchronous feedback such that a
simple
Σ
voltage-to-frequency conversion can be formed
if desired. Approximately 11-bit accuracy and noise per-
formance was observed in a one second integration period
for duty factors from 1% to 99%.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT6700IS6-3 | Micropower, Low Voltage, SOT-23, Dual Comparator with 400mV Reference |
| LT6700IS6-1 | Micropower, Low Voltage, SOT-23, Dual Comparator with 400mV Reference |
| LT6700-1 | Micropower, Low Voltage, SOT-23, Dual Comparator with 400mV Reference |
| LT6700-2 | Micropower, Low Voltage, SOT-23, Dual Comparator with 400mV Reference |
| LT6700-3 | LCD 4.5 DIGIT .4 TRANSFL |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT6700IS6-2#PBF | 制造商:Linear Technology 功能描述:COMPARATOR DUAL 18V 6TSOT23 |
| LT6700IS6-2#TR | 功能描述:IC COMP DUAL 400MV REF TSOT23-6 RoHS:否 類(lèi)別:集成電路 (IC) >> 線性 - 比較器 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:25 系列:- 類(lèi)型:帶電壓基準(zhǔn) 元件數(shù):4 輸出類(lèi)型:CMOS，開(kāi)路漏極，TTL 電壓 - 電源，單路/雙路(±):2 V ~ 11 V，±1 V ~ 5.5 V 電壓 - 輸入偏移（最小值）:10mV @ 5V 電流 - 輸入偏壓（最小值）:- 電流 - 輸出（標(biāo)準(zhǔn)）:0.015mA @ 5V 電流 - 靜態(tài)（最大值）:8.5µA CMRR, PSRR（標(biāo)準(zhǔn)）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:12µs 磁滯:50mV 工作溫度:0°C ~ 70°C 封裝/外殼:16-DIP（0.300"，7.62mm） 安裝類(lèi)型:通孔 包裝:管件 |
| LT6700IS6-2#TRM | 功能描述:IC COMP DUAL 400MV REF TSOT23-6 RoHS:否 類(lèi)別:集成電路 (IC) >> 線性 - 比較器 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:25 系列:- 類(lèi)型:帶電壓基準(zhǔn) 元件數(shù):4 輸出類(lèi)型:CMOS，開(kāi)路漏極，TTL 電壓 - 電源，單路/雙路(±):2 V ~ 11 V，±1 V ~ 5.5 V 電壓 - 輸入偏移（最小值）:10mV @ 5V 電流 - 輸入偏壓（最小值）:- 電流 - 輸出（標(biāo)準(zhǔn)）:0.015mA @ 5V 電流 - 靜態(tài)（最大值）:8.5µA CMRR, PSRR（標(biāo)準(zhǔn)）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:12µs 磁滯:50mV 工作溫度:0°C ~ 70°C 封裝/外殼:16-DIP（0.300"，7.62mm） 安裝類(lèi)型:通孔 包裝:管件 |
| LT6700IS6-2#TRMPBF | 功能描述:IC COMP DUAL 400MV REF TSOT23-6 RoHS:是 類(lèi)別:集成電路 (IC) >> 線性 - 比較器 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:25 系列:- 類(lèi)型:帶電壓基準(zhǔn) 元件數(shù):4 輸出類(lèi)型:CMOS，開(kāi)路漏極，TTL 電壓 - 電源，單路/雙路(±):2 V ~ 11 V，±1 V ~ 5.5 V 電壓 - 輸入偏移（最小值）:10mV @ 5V 電流 - 輸入偏壓（最小值）:- 電流 - 輸出（標(biāo)準(zhǔn)）:0.015mA @ 5V 電流 - 靜態(tài)（最大值）:8.5µA CMRR, PSRR（標(biāo)準(zhǔn)）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:12µs 磁滯:50mV 工作溫度:0°C ~ 70°C 封裝/外殼:16-DIP（0.300"，7.62mm） 安裝類(lèi)型:通孔 包裝:管件 |
| LT6700IS6-2#TRPBF | 功能描述:IC COMP DUAL 400MV REF TSOT23-6 RoHS:是 類(lèi)別:集成電路 (IC) >> 線性 - 比較器 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:25 系列:- 類(lèi)型:帶電壓基準(zhǔn) 元件數(shù):4 輸出類(lèi)型:CMOS，開(kāi)路漏極，TTL 電壓 - 電源，單路/雙路(±):2 V ~ 11 V，±1 V ~ 5.5 V 電壓 - 輸入偏移（最小值）:10mV @ 5V 電流 - 輸入偏壓（最小值）:- 電流 - 輸出（標(biāo)準(zhǔn)）:0.015mA @ 5V 電流 - 靜態(tài)（最大值）:8.5µA CMRR, PSRR（標(biāo)準(zhǔn)）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:12µs 磁滯:50mV 工作溫度:0°C ~ 70°C 封裝/外殼:16-DIP（0.300"，7.62mm） 安裝類(lèi)型:通孔 包裝:管件 |
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