* SPICE netlist
V1 Vp 0 15
V2 Vm 0 -15
V4 N002 0 0
R3 VOUT N004 1k
C2 VOUT N003 {50*C}
C1 VOUT 0 {C}
R1 OUT VOUT 2.4k
R2 OUT N001 100k
R2b N001 0 100k
V3 -V 0 -12
V5 +V 0 12
R6 N003 N002 10k
XU2 N003 N004 Vp Vm N004 NE5532 ;pnba In+)In-)V+)V-)OUT
XU4 VOUT N001 +V -V OUT NE5532 ;pnba In+)In-)V+)V-)OUT
.tran 0 0.05 0 startup
;ac oct 0.02 1 8k
.step param C LIST 10n 8n 6n 4n 3n 2n 0.75n 0.5n 0.25n 0.1n 0.075n 0.05n 0.025n
.meas tran vmax MAX V(VOUT)
.meas tran vmin MIN V(VOUT)
.meas tran t_rise1 WHEN V(VOUT)=0.99*vmax RISE=3
.meas tran t_rise2 WHEN V(VOUT)=0.44*vmin RISE=3
.meas tran dt_rise PARAM t_rise1-t_rise2
.meas TRAN dv_rise PARAM 0.99*vmax-0.44*vmin
.meas tran slew_rate PARAM dv_rise/dt_rise

* LTspice schematic (.asc)
Version 4
SHEET 1 1360 720
WIRE 56 -344 24 -344
WIRE 184 -344 120 -344
WIRE 328 -344 184 -344
WIRE 392 -344 328 -344
WIRE 488 -344 392 -344
WIRE 536 -344 488 -344
WIRE 680 -344 616 -344
WIRE -232 -328 -232 -344
WIRE -104 -328 -104 -344
WIRE 184 -328 184 -344
WIRE 328 -328 328 -344
WIRE -680 -280 -680 -328
WIRE 264 -248 264 -264
WIRE 536 -248 456 -248
WIRE -680 -232 -680 -280
WIRE -232 -232 -232 -248
WIRE -104 -232 -104 -248
WIRE 72 -232 40 -232
WIRE 184 -232 184 -264
WIRE 184 -232 152 -232
WIRE 232 -232 200 -232
WIRE 488 -232 488 -344
WIRE 520 -232 488 -232
WIRE 536 -232 536 -248
WIRE 552 -232 536 -232
WIRE 568 -232 552 -232
WIRE 184 -216 184 -232
WIRE 216 -216 184 -216
WIRE 328 -216 328 -248
WIRE 328 -216 296 -216
WIRE 680 -216 680 -344
WIRE 680 -216 616 -216
WIRE 200 -200 200 -232
WIRE 200 -200 184 -200
WIRE 216 -200 216 -216
WIRE 232 -200 216 -200
WIRE 456 -200 456 -248
WIRE 488 -200 456 -200
WIRE 520 -200 520 -232
WIRE 552 -200 520 -200
WIRE 40 -168 40 -232
WIRE 264 -168 264 -184
WIRE 488 -120 488 -200
WIRE 568 -120 488 -120
WIRE 680 -120 680 -216
WIRE 680 -120 648 -120
WIRE -680 -104 -680 -152
WIRE -520 -104 -680 -104
WIRE 184 -104 184 -200
WIRE 328 -104 328 -216
WIRE 328 -104 184 -104
WIRE -520 -88 -520 -104
WIRE 488 -88 488 -120
WIRE 40 -72 40 -88
WIRE -664 120 -664 56
WIRE -664 136 -664 120
WIRE -664 344 -664 216
WIRE -504 344 -664 344
WIRE -504 360 -504 344
FLAG -104 -232 0
FLAG -232 -232 0
FLAG -680 -280 -V
FLAG 40 -72 0
FLAG 24 -344 0
FLAG 488 -8 0
FLAG -104 -344 Vp
FLAG -232 -344 Vm
FLAG 264 -264 Vp
FLAG 264 -168 Vm
FLAG -504 360 0
FLAG -520 -88 0
FLAG -664 120 +V
FLAG 584 -248 +V
FLAG 584 -184 -V
FLAG 680 -216 OUT
FLAG 392 -344 VOUT
SYMBOL voltage -104 -344 R0
SYMATTR InstName V1
SYMATTR Value 15
SYMBOL voltage -232 -344 R0
SYMATTR InstName V2
SYMATTR Value -15
SYMBOL voltage 40 -184 R0
SYMATTR Value 0
SYMATTR InstName V4
SYMBOL res 312 -344 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL cap 168 -328 R0
SYMATTR InstName C2
SYMATTR Value {50*C}
SYMBOL cap 120 -360 R90
SYMATTR InstName C1
SYMATTR Value {C}
SYMBOL res 632 -360 R90
SYMATTR InstName R1
SYMATTR Value 2.4k
SYMBOL res 664 -136 R90
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 472 -104 R0
SYMATTR InstName R2b
SYMATTR Value 100k
SYMBOL voltage -680 -248 R0
SYMATTR InstName V3
SYMATTR Value -12
SYMBOL voltage -664 120 R0
SYMATTR InstName V5
SYMATTR Value 12
SYMBOL res 168 -248 R90
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL OpAmps\\opamp2 264 -280 R0
SYMATTR InstName U2
SYMATTR Value NE5532
SYMBOL OpAmps\\opamp2 584 -280 R0
SYMATTR InstName U4
SYMATTR Value NE5532