19 November 30, 2012 FN6632.10 Applications Information Functional Description The ISL28117, ISL28217 and ISL28417" />
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鍨嬭櫉锛� ISL28217FBBZ
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鎻忚堪锛� IC OPAMP PREC 1.5MHZ DL LP 8SOIC
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Solutions for Industrial Control Applications
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鏀惧ぇ鍣ㄩ鍨嬶細 閫氱敤
闆昏矾鏁�(sh霉)锛� 2
杞夋彌閫熺巼锛� 0.5 V/µs
澧炵泭甯跺绌嶏細 1.5MHz
闆绘祦 - 杓稿叆鍋忓锛� 80pA
闆诲 - 杓稿叆鍋忕Щ锛� 8µV
闆绘祦 - 闆绘簮锛� 440µA
闆绘祦 - 杓稿嚭 / 閫氶亾锛� 43mA
闆诲 - 闆绘簮锛屽柈璺�/闆欒矾(±)锛� 4.5 V ~ 40 V锛�±2.25 V ~ 20 V
宸ヤ綔婧害锛� -40°C ~ 125°C
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 8-SOIC锛�0.154"锛�3.90mm 瀵級
渚涙噳鍟嗚ō鍌欏皝瑁濓細 8-SOIC
鍖呰锛� 绠′欢
ISL28117, ISL28217, ISL28417
19
November 30, 2012
FN6632.10
Applications Information
Functional Description
The ISL28117, ISL28217 and ISL28417 are single, dual and
quad, low noise precision op amps. Both devices are fabricated
in a new precision 40V complementary bipolar DI process. A
super-beta NPN input stage with input bias current cancellation
provides low input bias current (180pA typical), low input offset
voltage (13V typical), low input noise voltage (8nV/
鈭欻z), and
low 1/f noise corner frequency (~8Hz). These amplifiers also
feature high open loop gain (18kV/mV) for excellent CMRR
(145dB) and THD+N performance (0.0005% @ 3.5VRMS, 1kHz
into 2k
惟). A complimentary bipolar output stage enables high
capacitive load drive without external compensation.
Operating Voltage Range
The devices are designed to operate over the 4.5V (卤2.25V) to
40V (卤20V) range and are fully characterized at 10V (卤5V) and
30V (卤15V). The Power Supply Rejection Ratio typically exceeds
140dB over the full operating voltage range and 120dB
minimum over the -40掳C to +125掳C temperature range. The
worst case common mode input voltage range over temperature
is 2V to each rail. With 卤15V supplies, CMRR performance is
typically >130dB over-temperature. The minimum CMRR
performance over the -40掳C to +125掳C temperature range is
>120dB for power supply voltages from 卤5V (10V) to 卤15V (30V).
Input Performance
The super-beta NPN input pair provides excellent frequency
response while maintaining high input precision. High NPN beta
(>1000) reduces input bias current while maintaining good
frequency response, low input bias current and low noise. Input
bias cancellation circuits provide additional bias current
reduction to <1nA, and excellent temperature stabilization.
Figures 11 through 18 show the high degree of bias current
stability at 卤5V and 卤15V supplies that is maintained across the
-40掳C to +125掳C temperature range. The low bias current TC
also produces very low input offset current TC, which reduces DC
input offset errors in precision, high impedance amplifiers.
The +25掳C maximum input offset voltage (VOS) for the 鈥淏鈥� grade is
50V and 100V for the 鈥淐鈥� grade. Input offset voltage temperature
coefficients (VOSTC) are a maximum of 卤0.6V/掳C for the 鈥淏鈥� and
卤0.9V/掳C for the 鈥淐鈥� grade. Figures 3 through 6 show the typical
gaussian-like distribution over the 卤5V to 卤15V supply range and over
the full temperature range. The VOS temperature behavior is smooth
(Figures 7 through 10) maintaining constant TC across the entire
temperature range.
Input ESD Diode Protection
The input terminals (IN+ and IN-) have internal ESD protection
diodes to the positive and negative supply rails, series connected
500
惟 current limiting resistors and an anti-parallel diode pair
across the inputs (Figure 54).
The series resistors limit the high feed-through currents that can
occur in pulse applications when the input dV/dT exceeds the
0.5V/s slew rate of the amplifier. Without the series resistors, the
input can forward-bias the anti-parallel diodes causing current to
flow to the output resulting in severe distortion and possible diode
failure. Figure 48 provides an example of distortion free large signal
response using a 4VP-P input pulse with an input rise time of <1ns.
The series resistors enable the input differential voltage to be equal
to the maximum power supply voltage (40V) without damage.
FIGURE 53. COMMON MODE INPUT IMPEDANCE
Typical Performance Curves V
S = 卤15V, VCM = 0V, RL = Open, unless otherwise specified. (Continued)
1
10
100
1k
10k
100k
1M
10M
100M
1
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
0.1
IN
P
U
T
RES
IS
T
ANCE
(k
)
0.01
FIGURE 54. INPUT ESD DIODE CURRENT LIMITING- UNITY GAIN
-
+
RL
VIN
VOUT
V+
V-
500
500
鐩搁棞PDF璩囨枡
PDF鎻忚堪
EL5411IRZ IC OP AMP QUAD 60MHZ RR 14-TSSOP
0MID080.X FUSE 80A 32V NON STD SLOW
0MID050.X FUSE 50A 32V NON STD SLOW
951266-2520-AR-PT CONN HEADER 66POS 2MM VERT SMD
951266-2520-AR-TP CONN HEADER 66POS 2MM VERT SMD
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ISL28217FBBZ-T7A 鍔熻兘鎻忚堪:閬嬬畻鏀惧ぇ鍣� - 閬嬫斁 ISL28217FBBZ DUAL PRC MICROPWR OPERTNL RoHS:鍚� 鍒堕€犲晢:STMicroelectronics 閫氶亾鏁�(sh霉)閲�:4 鍏辨ā鎶戝埗姣旓紙鏈€灏忓€硷級:63 dB 杓稿叆瑁滃劅闆诲:1 mV 杓稿叆鍋忔祦锛堟渶澶у€硷級:10 pA 宸ヤ綔闆绘簮闆诲:2.7 V to 5.5 V 瀹夎棰ㄦ牸:SMD/SMT 灏佽 / 绠遍珨:QFN-16 杞夋彌閫熷害:0.89 V/us 闂滈枆:No 杓稿嚭闆绘祦:55 mA 鏈€澶у伐浣滄韩搴�:+ 125 C 灏佽:Reel
ISL28217FBZ 鍔熻兘鎻忚堪:IC OPAMP PREC 1.5MHZ DL LP 8SOIC RoHS:鏄� 椤炲垾:闆嗘垚闆昏矾 (IC) >> Linear - Amplifiers - Instrumentation 绯诲垪:- 妯欐簴鍖呰:73 绯诲垪:Over-The-Top® 鏀惧ぇ鍣ㄩ鍨�:閫氱敤 闆昏矾鏁�(sh霉):4 杓稿嚭椤炲瀷:婊挎摵骞� 杞夋彌閫熺巼:0.07 V/µs 澧炵泭甯跺绌�:200kHz -3db甯跺:- 闆绘祦 - 杓稿叆鍋忓:1nA 闆诲 - 杓稿叆鍋忕Щ:285µV 闆绘祦 - 闆绘簮:50µA 闆绘祦 - 杓稿嚭 / 閫氶亾:25mA 闆诲 - 闆绘簮锛屽柈璺�/闆欒矾(±):2 V ~ 44 V锛�±1 V ~ 22 V 宸ヤ綔婧害:-40°C ~ 85°C 瀹夎椤炲瀷:琛ㄩ潰璨艰 灏佽/澶栨:16-WFDFN 瑁搁湶鐒婄洡 渚涙噳鍟嗚ō鍌欏皝瑁�:16-DFN-EP锛�5x3锛� 鍖呰:绠′欢
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