RT922 STMICROELECTRONICS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 15

Technical content

Datasheet sections

  • 1 Absolute maximum ratings and operating conditions
  • 2 Electrical characteristics
  • 3 RT922 macromodel
  • 3.1 Important note concerning this macromodel
  • 3.2 Electrical characteristics fr om macromodelization
  • 3.3 Macromodel code
  • 4 Package information
  • 4.1 SO8 package information
  • 5 Ordering information
  • 6 Revision history

Features

  • Rail-to-rail input and output
  • Low noise: 9 nV/√ Hz
  • Low distortion
  • High output current: 80 mA (able to drive 32 Ω loads)
  • High-speed: 4 MHz, 1 V/μs
  • Operating from 2.7 to 12 V
  • Low input offset voltage
  • ESD internal protection: 2 kV
  • Latch-up immunity
  • Macromodel included in this specification
  • Dual version available in flip-chip package
  • Intended for use in Aerospace and Defense applications: – Dedicated traceabilit y and part marking – Approval documents available for production parts – Adapted extended life time and obsolescence management – Extended product change notification process – Designed and manufactured to meet sub ppm quality goals – Advanced mold and frame designs for superior resilience to harsh environments (acceleration, EMI, thermal, humidity) – Extended screening ca pability on request – Single fabrication, assembly, and test site – Temperature range (-40 °C to 125 °C)

Applications

  • Aerospace and defense
  • Harsh environments

Description

The RT922 device is a rail-to-rail dual BiCMOS operational amplifier optimized and fully specified for 3 V and 5 V operation. The device has high output currents which allow low-load impedances to be driven. Very low noise, low distortion, low offset, and a high output current capability make this device an excellent choice for aerospace and defense applications. The device is stable for capacitive loads up to 500 pF. D SO8 (plastic micropackage) Pin connections (top view) ,QYHUWLQJLQSXW 2XWSXW 1RQLQYHUWLQJLQSXW 2XWSXW ,QYHUWLQJLQSXW 1RQLQYHUWLQJLQSXW &&9

1 Absolute maximum ratings and operating conditions

Table 1. Absolute maximum ratings (AMR)

  1. All voltage values, except the differential volt age are with respect to the network ground terminal.
  2. The differential voltage is the non-inverting input termi nal with respect to the inverting input terminal. If

resistor must be added to limit the input current.

  1. Short-circuits can cause excessi ve heating. Destructive dissipation can result from simultaneous short-

circuits on all amplifiers. These values are typical.

  1. Human body model: 100 pF discharged through a 1.5 k Ω resistor between two pins of the device, done for

all couples of pin combinations with other pins floating.

  1. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between

pin combinations with other pins floating.

  1. Charged device model: all pins and plus package ar e charged together to the specified voltage and then

discharged directly to ground.

  1. There is no short-circuit prot ection inside the device: short-circuits from the output to VCC

VCC. Destructive dissipation can result from simultaneous short-circuits on all amplifiers. Table 2. Operating conditions

2 Electrical characteristics

Table 3. Electrical characteristics measured at VCC = +3 V, VCC- = 0 V, Vicm = VCC/2,

68 Degrees

Table 4. Electrical characteristics measured at VCC = 5 V, VCC- = 0 V, Vicm = VCC/2,

3 RT922 macromodel

3.1 Important note concer ning this macromodel

  • All models are a trade-off between accuracy and complexity (i.e. simulation time).
  • Macromodels are not a substitute for breadboarding; rather, they confirm the validity of a design approach and help to select surrounding component values.
  • A macromodel emulates the nominal performance of a typical device within specified operating conditions (for example, temperature, supply voltage). Thus the macromodel is often not as exhaustive as the datasheet, its purpose is to illustrate the main parameters of the product. Data derived from macromodels used outside of the specified conditions (for example, VCC, temperature) or worse, outside of the device operating conditions (for example, VCC, Vicm), are not reliable in any way. Section 3.2 provides the electrical characteristics resulting from the use of the RT922, macromodel.

3.2 Electrical characteristi cs from macromodelization

Table 5. Electrical characteristics resulting from macromodel simulation

3.3 Macromodel code

Standard Linear Ics Macromodels, 1996. CONNECTIONS: * 1 INVERTING INPUT * 2 NON-INVERTING INPUT * 3 OUTPUT * 4 POSITIVE POWER SUPPLY * 5 NEGATIVE POWER SUPPLY .SUBCKT TS92X 1 2 3 4 5 .MODEL MDTH D IS=1E-8 KF=2.664234E-16 CJO=10F * INPUT STAGE CIP 2 5 1.000000E-12 CIN 1 5 1.000000E-12 EIP 10 5 2 5 1 EIN 16 5 1 5 1 RIP 10 11 8.125000E+00 RIN 15 16 8.125000E+00 RIS 11 15 2.238465E+02 DIP 11 12 MDTH 400E-12 DIN 15 14 MDTH 400E-12 VOFP 12 13 DC 153.5u VOFN 13 14 DC 0 IPOL 13 5 3.200000E-05 CPS 11 15 1e-9 DINN 17 13 MDTH 400E-12 VIN 17 5 -0.100000e+00 DINR 15 18 MDTH 400E-12 VIP 4 18 0.400000E+00 FCP 4 5 VOFP 1.865000E+02 FCN 5 4 VOFN 1.865000E+02 FIBP 2 5 VOFP 6.250000E-03 FIBN 5 1 VOFN 6.250000E-03 FGM1P 119 5 VOFP 1.1 FGM1N 119 5 VOFN 1.1 RAP 119 4 2.6E+06 RAN 119 5 2.6E+06 G2P 19 5 119 5 1.92E-02 G2N 19 5 119 4 1.92E-02 R2P 19 4 1E+07

GCONVP 500 501 119 4 19.38 VP 501 0 0 GCONVN 500 502 119 5 19.38 VN 502 0 0 VINT2 503 0 5 FCOPY 503 504 VOUT 1 DCOPYP 504 505 MDTH 400E-9 VCOPYP 505 0 0 DCOPYN 506 504 MDTH 400E-9 VCOPYN 0 506 0 F2PP 19 5 poly(2) VCOPYP VP 0 0 0 0 0.5 F2PN 19 5 poly(2) VCOPYP VN 0 0 0 0 0.5 F2NP 19 5 poly(2) VCOPYN VP 0 0 0 0 1.75 F2NN 19 5 poly(2) VCOPYN VN 0 0 0 0 1.75 CC 19 119 25p DOPM 19 22 MDTH 400E-12 DONM 21 19 MDTH 400E-12 HOPM 22 28 VOUT 6.250000E+02 VIPM 28 4 5.000000E+01 HONM 21 27 VOUT 6.250000E+02 VINM 5 27 5.000000E+01 VOUT 3 23 0 ROUT 23 19 6 COUT 3 5 1.300000E-10 DOP 19 25 MDTH 400E-12 VOP 4 25 1.052 DON 24 19 MDTH 400E-12 VON 24 5 1.052 .ENDS;TS92X

4 Package information

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark.

4.1 SO8 package information

Figure 12. SO8 package mechanical drawing Table 6. SO8 package mechanical data

5 Ordering information

6 Revision history

Table 7. Order codes Table 8. Document revision history