參數(shù)資料
型號(hào): LT1167CS8
廠商: Linear Technology
文件頁(yè)數(shù): 8/22頁(yè)
文件大?。?/td> 0K
描述: IC PREC INSTRMNT-AMP PROG 8-SOIC
標(biāo)準(zhǔn)包裝: 100
放大器類(lèi)型: 儀表
電路數(shù): 1
轉(zhuǎn)換速率: 1.2 V/µs
增益帶寬積: 1MHz
電流 - 輸入偏壓: 80pA
電壓 - 輸入偏移: 20µV
電流 - 電源: 900µA
電流 - 輸出 / 通道: 27mA
電壓 - 電源,單路/雙路(±): 4.6 V ~ 36 V,±2.3 V ~ 18 V
工作溫度: 0°C ~ 70°C
安裝類(lèi)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-SO
包裝: 管件
LT1167
16
1167fc
APPLICATIONS INFORMATION
+
+
+
350Ω
10V
10k**
PRECISION BRIDGE TRANSDUCER
LT1167 MONOLITHIC
INSTRUMENTATION AMPLIFIER
G = 100, RG = ±10ppm TC
SUPPLY CURRENT = 1.3mA MAX
“ROLL YOUR OWN” INST AMP, G = 100
* 0.02% RESISTOR MATCH, 3ppm/°C TRACKING
** DISCRETE 1% RESISTOR, ±100ppm/°C TC
100ppm TRACKING
SUPPLY CURRENT = 1.35mA FOR 3 AMPLIFIERS
1167 F06
RG
499Ω
1/4
LT1114A
1/4
LT1114A
1/4
LT1114A
10k**
202Ω**
10k*
+
LT1167C
REF
Figure 6. “Roll Your Own” vs LT1167
Table 1. “Roll Your Own” vs LT1167 Error Budget
ERROR SOURCE
LT1167C CIRCUIT CALCULATION
“ROLL YOUR OWN”’ CIRCUIT
CALCULATION
ERROR, ppm OF FULL SCALE
LT1167C
“ROLL YOUR OWN”
Absolute Accuracy at TA = 25°C
Input Offset Voltage, μV
Output Offset Voltage, μV
Input Offset Current, nA
CMR, dB
60μV/20mV
(300μV/100)/20mV
[(450pA)(350/2)Ω]/20mV
110dB
→[(3.16ppm)(5V)]/20mV
100μV/20mV
[(60μV)(2)/100]/20mV
[(450pA)(350Ω)/2]/20mV
[(0.02% Match)(5V)]/20mV
3000
150
4
790
5000
60
4
500
Drift to 85°C
Gain Drift, ppm/°C
Input Offset Voltage Drift, μV/°C
Output Offset Voltage Drift, μV/°C
(50ppm + 10ppm)(60°C)
[(0.4μV/°C)(60°C)]/20mV
[(6μV/°C)(60°C)]/100/20mV
Total Absolute Error
(100ppm/°C Track)(60°C)
[(1.6μV/°C)(60°C)]/20mV
[(1.1μV/°C)(2)(60°C)]/100/20mV
3944
3600
1200
180
5564
6000
4800
66
Resolution
Gain Nonlinearity, ppm of Full Scale
Typ 0.1Hz to 10Hz Voltage Noise, μVP-P
15ppm
0.28μVP-P/20mV
Total Drift Error
10ppm
(0.3μVP-P)(√2)/20mV
4980
15
14
10866
10
21
Total Resolution Error
Grand Total Error
29
8953
31
16461
G = 100, VS = ±15V
All errors are min/max and referred to input.
the LT1167 are input offset voltage and CMRR. Note that
for the discrete solution, the noise voltage specification is
multiplied by √2 which is the RMS sum of the uncorelated
noise of the two input amplifiers. Each of the amplifier er-
rors is referenced to a full-scale bridge differential voltage
of 20mV. The common mode range of the bridge is 5V. The
LT1114 data sheet provides offset voltage, offset voltage
drift and offset current specifications for the matched op
amp pairs used in the error-budget table. Even with an
excellent matched op amp like the LT1114, the discrete
solution’s total error is significantly higher than the LT1167’s
total error. The LT1167 has additional advantages over
the discrete design, including lower component cost and
smaller size.
Current Source
Figure 7 shows a simple, accurate, low power program-
mable current source. The differential voltage across
Pins2 and 3 is mirrored across RG. The voltage across
RG is amplified and applied across RX, defining the out-
put current. The 50μA bias current flowing from Pin 5 is
buffered by the LT1464 JFET operational amplifier. This
相關(guān)PDF資料
PDF描述
4-102977-0-24 CONN HEADR BRKWAY .100 48POS STR
LT1218LCS8#PBF IC PREC OP-AMP R-R IN/OUT 8-SOIC
MCP662-E/SN IC OPAMP R-R 60MHZ DUAL 8SOIC
PMT809004 GP THREE ELEMENTS S.A. 90V T/H
LTR50UZPJ821 RES 820 OHM 1W 5% 2010 WIDE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT1167CS8#PBF 功能描述:IC PREC INSTRMNT-AMP PROG 8-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱(chēng):OP481GRUZ-REELCT
LT1167CS8#PBF 制造商:Linear Technology 功能描述:INST AMP PRECI PROG 1MHZ 8SOIC 制造商:Linear Technology 功能描述:INST AMP, PRECI, PROG, 1MHZ, 8SOIC
LT1167CS8#TR 功能描述:IC AMP INSTR PROG PREC LP 8SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱(chēng):OP481GRUZ-REELCT
LT1167CS8#TRPBF 功能描述:IC AMP PREC INSTRMNT PROG 8SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類(lèi)型:通用 電路數(shù):4 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源,單路/雙路(±):2.7 V ~ 12 V,±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:14-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:剪切帶 (CT) 其它名稱(chēng):OP481GRUZ-REELCT
LT1167CS8-1#PBF 功能描述:IC INSTRUMENT AMP PROGR 8-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類(lèi)型:音頻 電路數(shù):2 輸出類(lèi)型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源,單路/雙路(±):4 V ~ 32 V,±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件