TransimpedanceAmplifier

philipturner·transimpedance-amplifier·Models/TransimpedanceAmplifier/TransimpedanceAmplifier.kicad_pcb

TransimpedanceAmplifier PCB layout, top view — open source board by philipturner

About the TransimpedanceAmplifier PCB

TransimpedanceAmplifier is an open source PCB design by philipturner, published on GitHub under the MIT license. It is a 2-layer board measuring 92.5 × 86.5 mm, with 95 components from 42 distinct parts.

Other key parts include the LM7905, -5V, 5%, LM7805, 5V, 5%, OPA828, AD8615 and OP37GPZ. By type, the board carries 38 capacitors, 19 resistors, 13 ICs, 12 connectors, 11 diodes and 2 transistors.

It belongs with the audio designs in this gallery.

From the project

Objective: Gather as much data as possible about the TIA sensor of an STM, using both theory and experiment.

Objective: Gather as much data as possible about the TIA sensor of an STM, using both theory and experiment.

Deadline: September 30, 2025 for the first physical prototype

Three simulation tasks, in chronological order 1) Understand/simulate why coarse tip approach takes so long - Understand specific algorithms for moving the coarse motor (approach & retract) without frictional backlash causing a tip crash - Understand maximum speeds of piezo motors 2) Simulate imperfect DAC-driven cancellation with a fixed value compensation capacitor - Use the tip-sample capacitance of a plausible…

TransimpedanceAmplifier, from the project README — From the project README

Main components on the TransimpedanceAmplifier

LM7905, -5V, 5%LM7805, 5V, 5%OPA828 AD8615 OP37GPZ LM7915, -15V, 5%LM7815, 15V, 5%TLV76133, 3.3V, 1%DAC81401 ISO7641FM ADS8699

TransimpedanceAmplifier bill of materials (BOM)

95 components, 42 distinct parts.

Qty	Part	Footprint	Refs
1	LM7905, -5V, 5%	TO-220	U1
2	LM7805, 5V, 5%	TO-220	U2, U8
1	OPA828	SOIC-8	U3
1	AD8615	AD8615	U4
1	OP37GPZ	PDIP-8	U5
1	LM7915, -15V, 5%	TO-220	U6
1	LM7815, 15V, 5%	TO-220	U7
1	TLV76133, 3.3V, 1%	SOT-223	U9
1	DAC81401	DAC81401	U10
2	ISO7641FM	ISO7641FM	U11, U12
1	ADS8699	ADS8699	U13
1	Q_PNP	SOT-23	Q1
1	Q_NPN	SOT-23	Q2
2	Conn_01x02_Socket	PinSocket_1x2	J1, J2
1	Conn_01x03_Pin	PinHeader_1x3	J3
7	Conn_01x02_Pin	PinHeader_1x2	J4, J5, J6, J7, J8, J9, J10
2	Conn_01x24_Socket	PinSocket_1x24	J11, J14
6	D_Schottky	SOD-123	D1, D2, D8, D9, D10, D11
1	3.3V, 1%	SOT-23	D3
2	D	SOD-123	D4, D5

Show 22 more

Qty	Part	Footprint	Refs
2	10V, 1%	SOT-23	D6, D7
4	220 nF, 0603	CAPC0603	C1, C17, C21, C25
11	100 nF, 0603	CAPC0603	C2, C6, C7, C15, C16, C18, C23, C30 +3
6	1 uF, 0805	CAPC0805	C3, C4, C19, C20, C22, C24
1	2 nF, 1%	CAPC0603	C9
1	180 pF, 1%	CAPC0603	C10
9	1 uF, 0603	CAPC0603	C11, C12, C26, C27, C28, C29, C35, C36 +1
6	10 uF, 0805	CAPC0805	C13, C14, C34, C37, C38, C40
1	4.7k, 1%	RESC0603	R1
1	100M, 5%	RESC0805	R2
1	330M, 5%	RESC0805	R3
1	1.3k, 1%	RESC0603	R4
1	10k, 10%	Bourns_3296Y	R5
1	200k, 10%	Bourns_3296Y	R6
1	47k, 10%	Bourns_3296Y	R7
1	100, 1%	RESC0603	R8
1	220, 1%	RESC0603	R9
1	523, 1%	RESC0603	R10
1	1k, 10%	Bourns_3296Y	R11
3	1k, 1%	RESC0603	R12, R14, R15
1	15k, 1%	RESC0603	R13
4	10k, 1%	RESC0603	R16, R17, R18, R19

TransimpedanceAmplifier design files

The KiCad project lives in the philipturner/transimpedance-amplifier repository on GitHub; these links point at the commit this page was built from.

TransimpedanceAmplifier: common questions

How big is the TransimpedanceAmplifier PCB?

The TransimpedanceAmplifier measures 92.5 × 86.5 mm, has 2 copper layers and is 1.6256 mm thick.

How many components are on the TransimpedanceAmplifier?

95 components, from 42 distinct parts. The full bill of materials is listed on this page.

Where can I download the TransimpedanceAmplifier design files?

From the philipturner/transimpedance-amplifier repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the TransimpedanceAmplifier design in my own project?

Yes, under the terms of its MIT license, which philipturner chose for the repository.

More boards in transimpedance-amplifier

Similar boards