Add Texas Instruments ADS101x ADCs

[drakedevel]

Adds the TI ADS101x family of 12-bit delta-sigma ADCs in the VSSOP (DGS) package. These share a datasheet: https://www.ti.com/product/ADS1015

The footprint and symbol were exported from TI in KiCad format, imported, and touched up to pass checks. The 3D model was exported from TI as a STEP file, imported, and manually aligned. Descriptions are copied from TI datasheets and product pages.

I haven't made a board with this yet, but one is in the works, so I should be able to report back with test results once that's done.

[carrotIndustries]

Bot!

[drakedevel]

Updated the silkscreen on the footprint for consistency with other parts, and added a pin 1 indicator.

I'm not sure why the 3D Views section shows an empty PCB with the model -- this is what I see:

[drakedevel]

Aha, it looks like the Pool manager omitted the STEP file from the PR. I couldn't figure out how to add it from the UI so I just added it manually.

[drakedevel]

Shrank the symbol to a more reasonable size.

[RX14]

Aha, it looks like the Pool manager omitted the STEP file from the PR.

Could you submit this as a bug in the horizon-eda/horizon repo?

[RX14]

Bot!

[github-actions]

This review is brought to you by the Horizon EDA Poolbot commit eb40288.

Items in this PR

State	Type	Name	Checks	Version	Filename
New	3D Model		Not run	N/A	3d_models/manufacturer/ti/DGS0010A.stp
New	Entity	ADS101x	✔️ Pass	0 ✔️	entities/ic/adc/ti/ADS101x.json
New	Package	DGS10	✔️ Pass	0 ✔️	packages/manufacturer/ti/dgs-10/package.json
New	Part	ADS1013IDGS	✔️ Pass	0 ✔️	parts/ic/adc/ti/ADS1013IDGS.json
New	Part	ADS1014IDGS	✔️ Pass	0 ✔️	parts/ic/adc/ti/ADS1014IDGS.json
New	Part	ADS1015IDGS	✔️ Pass	0 ✔️	parts/ic/adc/ti/ADS1015IDGS.json
New	Part	ADS101xIDGS	✔️ Pass	1 ✔️	parts/ic/adc/ti/ADS101xIDGS.json
New	Symbol	ADS101x	✔️ Pass	0 ✔️	symbols/ic/adc/ti/ADS101x.json
New	Unit	ADS101x	✔️ Pass	0 ✔️	units/ic/adc/ti/ADS101x.json

Parts overview (excluding derived)

Bold items are from this PR

• Part ADS101xIDGS
  • Entity ADS101x
    • Unit ADS101x
      • Symbol ADS101x
  • Package DGS10
    • Padstack SMD rectangular
    • 3D Model 3d_models/manufacturer/ti/DGS0010A.stp

Derived parts

Bold items are from this PR

• ADS101xIDGS
  • ADS1014IDGS
  • ADS1013IDGS
  • ADS1015IDGS

Parts table

Values in italic are inherited

MPN	Value	Manufacturer	Datasheet	Description	Tags
ADS101xIDGS		Texas Instruments	https://www.ti.com/lit/gpn/ads1015	Ultra-Small, Low-Power, I2C-Compatible, 3.3-kSPS, 12-Bit ADCs With Internal Reference, Oscillator, and Programmable Comparator	adc ic
ADS1014IDGS		Texas Instruments	https://www.ti.com/lit/gpn/ads1015	12-Bit 3.3kSPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Voltage Reference, Comparator, and I2C	adc ic
ADS1013IDGS		Texas Instruments	https://www.ti.com/lit/gpn/ads1015	12-Bit 3.3kSPS 1-Ch Delta-Sigma ADC With Oscillator, Voltage Reference, and I2C	adc ic
ADS1015IDGS		Texas Instruments	https://www.ti.com/lit/gpn/ads1015	12-bit, 3.3-kSPS, 4-channel, delta-sigma ADC with PGA, oscillator, VREF, comparator and I2C	adc ic

Details

Parts

ADS101xIDGS

✔️ Checks passed

Attribute	Value
MPN	ADS101xIDGS
Value
Manufacturer	Texas Instruments (74 other parts)
Datasheet	https://www.ti.com/lit/gpn/ads1015
Description	Ultra-Small, Low-Power, I2C-Compatible, 3.3-kSPS, 12-Bit ADCs With Internal Reference, Oscillator, and Programmable Comparator
Tags	adc ic

Flags

• Base part

Pad	Gate	Pin
1	Main	ADDR
2	Main	ALERT/RDY
3	Main	GND
4	Main	AIN0
5	Main	AIN1
6	Main	AIN2
7	Main	AIN3
8	Main	VDD
9	Main	SDA
10	Main	SCL

ADS1014IDGS

Inerhits from ADS101xIDGS

✔️ Checks passed

Attribute	Value
MPN	ADS1014IDGS
Value	(inherited)
Manufacturer	Texas Instruments (74 other parts) (inherited)
Datasheet	https://www.ti.com/lit/gpn/ads1015 (inherited)
Description	12-Bit 3.3kSPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Voltage Reference, Comparator, and I2C
Tags	adc ic (inherited)

Orderable MPNs

• ADS1014IDGST
• ADS1014IDGSR

ADS1013IDGS

Inerhits from ADS101xIDGS

✔️ Checks passed

Attribute	Value
MPN	ADS1013IDGS
Value	(inherited)
Manufacturer	Texas Instruments (74 other parts) (inherited)
Datasheet	https://www.ti.com/lit/gpn/ads1015 (inherited)
Description	12-Bit 3.3kSPS 1-Ch Delta-Sigma ADC With Oscillator, Voltage Reference, and I2C
Tags	adc ic (inherited)

Orderable MPNs

• ADS1013IDGST
• ADS1013IDGSR

ADS1015IDGS

Inerhits from ADS101xIDGS

✔️ Checks passed

Attribute	Value
MPN	ADS1015IDGS
Value	(inherited)
Manufacturer	Texas Instruments (74 other parts) (inherited)
Datasheet	https://www.ti.com/lit/gpn/ads1015 (inherited)
Description	12-bit, 3.3-kSPS, 4-channel, delta-sigma ADC with PGA, oscillator, VREF, comparator and I2C
Tags	adc ic (inherited)

Orderable MPNs

• ADS1015IDGSR
• ADS1015IDGST

Entities

ADS101x

✔️ Checks passed

Attribute	Value
Manufacturer	Texas Instruments (74 other parts)
Prefix	U
Tags	adc ic

Gate	Suffix	Swap group	Unit
Main		0	ADS101x

Units

ADS101x

✔️ Checks passed

Attribute	Value
Manufacturer	Texas Instruments (74 other parts)

Pin	Direction
ADDR	Input
AIN0	Input
AIN1	Input
AIN2	Input
AIN3	Input
ALERT/RDY	Output
GND	Power Input
SCL	Input
SDA	Bidirectional
VDD	Power Input

Symbol: ADS101x

✔️ Checks passed

• Is box symbol

Packages

DGS10

Attribute	Value
Manufacturer	Texas Instruments (74 other parts)
Tags	ic smd

✔️ Package checks passed

✔️ Clearance checks passed

Parameters

Parameter	Value
Courtyard expansion	000.250 mm

5.755mm 3.099mm
get-parameter [ courtyard_expansion ]
2 * +xy
set-polygon [ courtyard rectangle 0.000mm 0.000mm ]

Pads

Pad	Padstack	Pad width	Pad height
1	SMD rectangular	001.328 mm	000.279 mm
2	SMD rectangular	001.328 mm	000.279 mm
3	SMD rectangular	001.328 mm	000.279 mm
4	SMD rectangular	001.328 mm	000.279 mm
5	SMD rectangular	001.328 mm	000.279 mm
6	SMD rectangular	001.328 mm	000.279 mm
7	SMD rectangular	001.328 mm	000.279 mm
8	SMD rectangular	001.328 mm	000.279 mm
9	SMD rectangular	001.328 mm	000.279 mm
10	SMD rectangular	001.328 mm	000.279 mm

3D views (one model)

Without model

Top	Bottom

DGS0010A.stp

Top	Bottom

South	East	North	West

Pitch analysis

X	Y	Count
000.000 mm	000.500 mm	4
000.000 mm	000.500 mm	4
004.427 mm	000.000 mm	2

[RX14]

I think this package might better be called VSSOP-10 (3x3mm) than TI's manufacturer specific code. The pad size and X pitch seem to be somewhat different than TI's own drawing, which specifies round metric 0.3x1.45 pads, and 4.4mm X pitch. It might also be worth using the rounded corner schematic pad with a corner radius of 0.07mm (1/4 the shortest side, rounded to 0.1mm).

For schematic symbols in horizon, it's good practice to arrange pins by function and not footprint layout. The power pin should be at the top and ground at the bottom. See for example TI's DAC081S101 for a relevent example of a good horizon symbol, especially note the REFDES and VALUE placement. I would put all the AIN pins on the left and the data out on the right, for a left to right flow of information in the resulting schematic.

It's also ideal that there are different symbols for the ADS1015 and other parts, to stop errors where the wrong part is chosen and inputs are attached to the NC pins. This would also necessitate an alternate base part/unit/entity. If you are using only one of the two types, don't feel the need to complete the other.

Thanks so much for your first contribution, and apologies for all the nitpicks.