NJM2719 - 1 - ver.2011-02-04 low noise, high-speed du al operational amplifier general description the NJM2719 is a dual high s peed voltage feedback operational amplifier specifically opti mized for low voltage noise. a voltage noise specification of 2.5nv/ hz typ. (at f =100khz), a unity gain of 100mhz combine to make the NJM2719 an ideal choice for i/q baseband amplifie r, rfid reader application and other in wireless communication system desighns. the NJM2719 is available in the 8-pin so package (dmp8) with standard pinouts. for compact layouts, the dual is also available in a tiny dual fine pitch 8-pin package (ssop8, tvsp8). features low noise vni = 2.5nv/ hz typ. at f=100khz vni = 3nv/ hz typ. at f=10khz unity gain bandwidth ft = 100mhz typ. at v + /v - = 5v ft = 90mhz typ. at v + /v - = 2.5v phase margin m = 60deg typ. slew rate 60v/s typ. at v + /v - = 5v 35v/s typ. at v + /v - = 2.5v output rail-to-rail v oh +4.7v, v ol -4.8v at v + /v - = 5v v oh +2.4v, v ol -2.4v at v + /v - = 2.5v operating voltage 2.5v ~ 5v bipolar technology package outline dmp8 [NJM2719m] ssop8 [NJM2719v] tvsp8 [NJM2719rb1] application wireless communication equipment i/q baseband application rfid reader application active filter adc/dac buffer ultrasound amplifier package outline a outpu t a - inpu t a +inpu t v - v + b outpu t b - inpu t b +inpu t 5 8 7 6 4 1 2 3 + - - + dmp8 [NJM2719m] ssop8 [NJM2719v] tvsp8 [NJM2719rb1] ( top view ) NJM2719m (dmp8) NJM2719rb1 (tvsp8) pin configuration NJM2719 v (ssop8)
NJM2719 - 2 - ver.2011-02-04 absolute maximum ratings (ta=25 ? c) (note 1) the output voltage of normal operation will be the output voltage swing of elec trical characteristics. (note 2) on the pcb " eia/jedec (76. 2x114.3x1.6mm, two layers, fr-4) " (note 3) do not exceed "power dissipation: pd" in which powe r dissipation in ic is shown by the absolute maximum rating. refer to following figure 1 for a permissible loss when ambient temperature (ta) is ta 25 o c. parameter symbol ratings unit supply voltage v + +5.5 v common mode input voltage range v icm 5.5 (note1) v differential input voltage range v id 3 v 370 [dmp8],310 [ssop8], 400[tvsp8] mw power dissipation p d 470[dmp8](note2),410[ssop8](note2), 510[tvsp8] (note2) mw operating temperature range t opr -40 to +85 ? c storage temperature range t stg -50 to +150 ? c figure1a: power dissipation ? ambient temperature figure1b: power dissipation ? ambient temperature 0 300 100 200 500 400 0 25 50 75 100 600 (1) (2) (4) (3) pak age typ (1)ssop8 : p d = -2.5(mw/c) (2)ssop8[two layer] : p d = -3.4(mw/c) (3)tvsp8 : p d = -3.2(mw/c) (4)tvsp8[two layer] : p d = -4.0(mw/c) power dissipation p d (mw) ambient temperature (deg) 0 300 100 200 500 400 600 0 25 50 75 100 pakage typ (1)dmp8 : p d = -3.0(mw/c) (2)dmp8[tw o layer] : p d = -3.8(m w/c) (1) (2) ambient temperature (deg) power dissipation p d (mw)
NJM2719 - 3 - ver.2011-02-04 operating voltage (ta=25 ? c) parameter symbol test condition min. typ. max. unit supply voltage v + / v - (note3) 2.25 - 5.5 v electrical characteristics dc characteristics (v + /v ? =2.5v , ta = 2 5 ? c) parameter symbol test condition min. typ. max. unit supply current icc no signal - 11 14 ma input offset voltage v io rs=50 ? - 1 9 mv input offset voltage drift vio/ t rs=50 ? - 10 - v/deg input bias current i b - 2.9 25 a input offset current i io - 0.2 2 a voltage gain av r l = 1k ? to 0v, vo = 1v 68 91 - db common mode rejection ratio cmr -2v v cm +1.2v 82 92 - db supply voltage rejection ratio svr 2.25v v + /v - 5v 84 97 - db v oh1 +2.3 +2.4 - maximum output voltage 1 v ol1 r l = 1k ? to 0v - -2.4 -2.3 v v oh2 isource =4ma, +input =+0.1v, -input =-0.1v +2.2 +2.3 - maximum output voltage 2 v ol2 isink =4ma, +input =-0.1v, -input =+0.1v - -2.3 -2.2 v v icm + +1.2 - - common mode input voltage range v icm - cmr 82db - - -2 v ac characteristics (v + /v ? =2.5v , ta = 2 5 ? c) parameter symbol test condition min. typ. max. unit unity gain ft - 90 - mhz phase margin m - 60 - deg gain margin gm av=+40db, rf =1.98k ? , rg =20 ? , r l =1k ? to 0v, c l =5pf - 10 - db v ni1 f =100khz - 2.5 - equivalent input noise voltage v ni2 f =10khz - 3 - nv/ hz equivalent input noise current i ni f =100khz - 3 - pa/ hz channel separation cs f =1mhz, vin =0.2vpp, av =+1, r l =1k ? to 0v, c l =5pf - 70 - db transient characteristics (v + /v ? =2.5v , ta = 2 5 ? c) parameter symbol test condition min. typ. max. unit +sr1 - 35 - slew rate 1 -sr1 av =0db, r l =1k ? to 0v, c l =5pf, vout =2vpp - 35 - v/ s +sr2 - 30 - slew rate 2 -sr2 av =+6db, r l =1k ? to 0v, c l =5pf, vout =2vpp - 30 - v/ s rise time tr - 8.3 - fall time tf av =+6db, r l =1k ? to 0v, c l =5pf, vout =0.2vpp, 10% to 90% - 8.3 - ns power band width pbw av =+6db, r l =1k ? to 0v, c l =5pf, vout =2vpp, hd2 -40db, hd3 -40db - 3 - mhz total harmonic distortion thd av =+6db, r l =1k ? to 0v, c l =5pf, f =10khz, vout =2vpp - 0.1 - % second harmonic hd2 - -50 - third harmonic hd3 av =+6db, r l =1k ? to 0v, c l =5pf, f =1mhz, vout =2vpp - -50 - dbc settling time (1%) ts1 - 100 - settling time (0.1%) ts2 av =+6db, r l =1k ? to 0v, c l =5pf, vout =2vpp - 110 - ns
NJM2719 - 4 - ver.2011-02-04 dc characteristics (v + /v ? =5v , ta = 2 5 ? c) parameter symbol test condition min. typ. max. unit supply current icc no signal - 14 17 ma input offset voltage v io rs=50 ? - 1 9 mv input offset voltage drift vio/ t rs=50 ? - 10 - v/deg input bias current i b - 2.9 25 a input offset current i io - 0.2 2 a voltage gain av r l = 1k ? to 0v, vo = 1v 70 91 - db common mode rejection ratio cmr -4.5v v cm +3.7v 82 92 - db supply voltage rejection ratio svr 2.25v v + /v - 5v 84 97 - db v oh1 +4.6 +4.7 - maximum output voltage 1 v ol1 r l = 1k ? to 0v - -4.8 -4.7 v v oh2 isource =5ma, +input =+0.1v, -input =-0.1v +4.5 +4.6 - maximum output voltage 2 v ol2 isink =5ma, +input =-0.1v, -input =+0.1v - -4.7 -4.6 v v icm + +3.7 - - common mode input voltage range v icm - cmr 82db - - -4.5 v ac characteristics (v + /v ? =5v , ta = 2 5 ? c) parameter symbol test condition min. typ. max. unit unity gain ft - 100 - mhz phase margin m - 60 - deg gain margin gm av=+40db, rf =1.98k ? , rg =20 ? , r l =1k ? to 0v, c l =5pf - 10 - db v ni1 f =100khz - 2.5 - equivalent input noise voltage v ni2 f =10khz - 3 - nv/ hz equivalent input noise current i ni f =100khz - 3 - pa/ hz channel separation cs f =1mhz, vin =0.2vpp, av =+1, r l =1k ? to 0v, c l =5pf - 70 - db transient characteristics (v + /v ? =5v , ta = 2 5 ? c) parameter symbol test condition min. typ. max. unit +sr1 - 60 - slew rate 1 -sr1 av =0db, r l =1k ? to 0v, c l =5pf, vout =5vpp - 60 - v/ s +sr2 - 55 - slew rate 2 -sr2 av =+6db, r l =1k ? to 0v, c l =5pf, vout =5vpp - 55 - v/ s rise time tr - 8 - fall time tf av =+6db, r l =1k ? to 0v, c l =5pf, vout =0.2vpp, 10% to 90% - 8 - ns power band width pbw av =+6db, r l =1k ? to 0v, c l =5pf, vout =2vpp, hd2 -40db, hd3 -40db - 4 - mhz total harmonic distortion thd av =+6db, r l =1k ? to 0v, c l =5pf, f =10khz, vout =2vpp - 0.1 - % second harmonic hd2 - -50 - third harmonic hd3 av =+6db, r l =1k ? to 0v, c l =5pf, f =1mhz, vout =2vpp - -50 - dbc settling time (1%) ts1 - 90 - settling time (0.1%) ts2 av =+6db, r l =1k ? to 0v, c l =5pf, vout =2vpp - 110 - ns
NJM2719 - 5 - ver.2011-02-04 typical characteristics unity gain frequency response -20 -15 -10 -5 0 5 10 15 20 frequency [hz] gain [db] v + /v - =2.5v, r s =50 ? , r l =1k ? , c l =5pf (temperature) 100k 1m 10m 100m 1g t a =85c t a =25c t a =-40c unity gain frequency response -20 -15 -10 -5 0 5 10 15 20 frequency [hz] gain [db] r s =50 ? , r l =1k ? , c l =5pf, ta=25c (supply voltage) 100k 1m 10m 100m 1g v + /v - =2.5v v + /v - =5v channel separation vs. frequency 0 20 40 60 80 100 120 frequency [hz] channel separation [db] v + /v - =2.5v, v o =0.2vpp, g v =0db, r l =1k ? , c l =5pf, 100k 1m 10m 100m closed-loop gain/phase vs. frequency -40 -30 -20 -10 0 10 20 30 40 50 frequency [hz] gain [db] -180 -135 -90 -45 0 45 90 135 180 225 phase [deg] v + /v - =2.5v, r s =50 ? , r f =2k ? , r g =20 ? , r l =1k ? , c l =5pf gain phase (temperature) t a =85c t a =25c t a =-40c 100k 1m 10m 100m 1g t a =85c t a =25c t a =-40c equivalent input voltage noise vs. frequency 0 5 10 15 20 frequency [hz] equivalent input voltage noise [nv/ hz] v + /v - =2.5v, r s =50 ? , r f =2k ? , r g =20 ? , t a =25c 100 1k 10k 100k unity gain frequency response -20 -15 -10 -5 0 5 10 15 20 frequency [hz] gain [db] v + /v - =2.5v, r s =50 ? , r l =1k ? , ta=25c (load capacitance) c l =10pf 100k 1m 10m 100m 1g c l =20pf c l =50pf
NJM2719 - 6 - ver.2011-02-04 supply current vs. supply voltage 0 2 4 6 8 10 12 14 16 18 0123456 supply voltage [v] supply current [ma] g v =0db, ta=25c supply current vs. temperature 0 5 10 15 20 25 -50 -25 0 25 50 75 100 125 150 temperature [c] supply current [ma] g v =0db, v icm =0v v + /v - =2.5v v + /v - =5v transinet response 50ns/div 1v/div. v + /v - =2.5v,f=4mhz,v o =2v pp ,g v =1,r t =50 ? , r l =1k ? ,t a =25c c l =20pf c l =5pf (load capacitance) input output transient response 50ns/div 2v/div. v + /v - =5v,f=4mhz,v o =5v pp ,g v =1,r t =50 ? , r l =1k ? ,t a =25c c l =20pf c l =5pf (load capacitance) input output transeint response 50ns/div 1v/div. v + /v - =2.5v,f=4mhz,v o =2v pp ,g v =1,r t =50 ? , r l =1k ? , c l =5pf t a =-40c (temperature) input output t a =85c t a =25c transient response 50ns/div 2v/div. v + /v - =5v,f=4mhz,v o =5v pp ,g v =1,r t =50 ? , r l =1k ? , c l =5pf t a =-40c (temperature) input output t a =85c t a =25c
NJM2719 - 7 - ver.2011-02-04 maximum output voltage vs. load resistance (temperature) -3 -2 -1 0 1 2 3 10 100 1000 10000 load resistance [ ? ] maximum output voltage [v] v + /v - =2.5v,v in =0.2v t a =-40c t a =85c t a =25c maximum output voltage vs. supply voltage (temperature) -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 0123456 supply voltage [v] maximum output voltage [v] v in =0.2v,r l =1k ? t a =-40c t a =85c t a =25c t a =85c t a =25c t a =-40c maximum output voltage vs. output current (temperature) -3 -2 -1 0 1 2 3 0 1020304050 output current [ma] maximum output voltage [v] v + /v - =2.5v,v in =0.2v t a =85c t a =25c t a =85c t a =25c t a =-40c maximum output voltage vs. output current (temperature) -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 0 1020304050 output current [ma] maximum output voltage [v] v + /v - =5v,v in =0.2v t a =85c t a =85c t a =25c t a =-40c input offset voltage vs. temperature v icm =0v -10.0 -8.0 -6.0 -4.0 -2.0 0.0 2.0 4.0 6.0 8.0 10.0 -50 -25 0 25 50 75 100 125 temperature [c] input offset voltage [mv] v + / v - =2.5v v + / v - =5v input offset voltage vs. input common-mode voltage (temperature) v + /v - =2.5v -10.0 -8.0 -6.0 -4.0 -2.0 0.0 2.0 4.0 6.0 8.0 10.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 input common-mode voltage [v] input offset voltage [mv] ta=-40c ta=25c ta=85c
NJM2719 - 8 - ver.2011-02-04 open-loop voltage gain vs. temperature v out =-1v to +1v, r l =1k ? 0 20 40 60 80 100 120 -50 -25 0 25 50 75 100 125 temperature [c] open-loop voltage gain [db] v + /v - =2.5v v + /v - =5v supply voltage rejection ratio vs. temperature v + /v - =2.25v to 5v 0 20 40 60 80 100 120 -50 -25 0 25 50 75 100 125 temperature [c] supply voltage rejection ratio [db] common-mode rejection ratio vs. temperature v + /v - =v - +0.5v to v + -1.3v 0 20 40 60 80 100 120 -50-25 0 255075100125 temperature [c] common-mode rejection ratio [db] v + / v - =2.5 v v + / v - =5v input offset voltage vs. temperature v icm =0v -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 -50 -25 0 25 50 75 100 125 temperature [c] input offset current [ a] v + /v - =2.5v v + / v - =5v
NJM2719 - 9 - ver.2011-02-04 application stability generally, when driving a large capacitive load in low closed- loop gain or unity-gain configurations, circuit stability is reduced. in the case of using the NJM2719 for these configur ations, it is necessary to ca re about unwanted oscillation. an effective way to improve stability and to avoid oscillation is to add an isol ation resistor as shown in figure 1. figure 2 shows required resistor values (r iso ) for stability versus load capacitances (c l ) in the unity-gain configuration (figure 1). to ensure the stability, add a larger isolation resi stor in figure 2. (resistor values in figure2 are reference values when parasitic capacitance of an evaluation board is minimized.) figure 1. figure 2. required isolation resistor values fo r stability, r iso [ ], versus capacitive loads, c l [pf]. (g v =0db) - + r iso c l v in v out 0 5 10 15 20 25 0 20406080100 c l [pf] r iso [ ? ] supply voltage 2.5v supply voltage 5v
NJM2719 - 10 - ver.2011-02-04 note [caution] the specifications on this data book are only given for information, without any guarantee as regards either mistakes or omissions. th e application circuits in this data book are described only to sho w representative usages of the product and not intended for th e guarantee or permission of any right including the industrial rights.
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