ADS1110 differential ADC pinout

The ADS1110 digitizes one differential channel using an internal reference and programmable gain. The package marking determines its fixed I²C address.

SOT-23-6 (DBV)

6 contacts Current package

Texas Instruments ·

Address 0x48 · marking ED0 · 250-piece reel.

SOT-23-6 (DBV) pinout

Top view. Start at the package pin-1 index and follow the numbered leads.

Selected pin details

4 · SDA

Bidirectional · Bidirectional

Open-drain I²C data. The bus needs a pull-up to its logic rail.

Texas Instruments SBAS276A Rev. A, pp. 2–3 and 6–12.

Electrical limits · Link to this pin

All 6 pins

Pin	Signal	Direction	Function
1	VIN+ Analog input	Analog input	Noninverting analog input. Keep its voltage within the allowed range relative to ground and VDD.
2	GND Supply return	Supply return	Connect to the common ground plane or bench return.
3	SCL Input	Input	I²C clock. Connect to the host clock line with its bus pull-up.
4	SDA Bidirectional	Bidirectional	Open-drain I²C data. The bus needs a pull-up to its logic rail.
5	VDD Supply input	Supply input	Device supply. Place the bypass capacitor close to this pin.
6	VIN− Analog input	Analog input	Inverting analog input. The converter measures VIN+ minus VIN−.

Signal assignments

I²C

Factory-programmed address between 0x48 and 0x4F. A read returns conversion bytes followed by the configuration byte.

Electrical limits

Parameter	Limit	Conditions and source
Supply2.7–5.5 V	2.7–5.5 V	The example uses 3.3 V for the ADC and the host. Texas Instruments SBAS276A Rev. A, pp. 2–3 and 6–12.
Differential full scale±2.048 V / gain	±2.048 V / gain	Available gains are 1, 2, 4 and 8. This span does not permit either input to go beyond the device’s allowed ground-referenced input voltage. Texas Instruments SBAS276A Rev. A, pp. 2–3 and 6–12.
Conversion rate15, 30, 60, 240 SPS	15, 30, 60, 240 SPS	16 bits at 15 samples per second. Faster conversion has lower effective output resolution. Texas Instruments SBAS276A Rev. A, pp. 2–3 and 6–12.

Models and documents

The same SOT-23-6 pinout applies to the eight hardware address selections. Match the A0 through A7 suffix to the fitted device.

ADS1110A0IDBVT: Address 0x48 · marking ED0 · 250-piece reel.
ADS1110A0IDBVR: Address 0x48 · marking ED0 · 3000-piece reel.
ADS1110A1IDBVT: Address 0x49 · marking ED1 · 250-piece reel.
ADS1110A1IDBVR: Address 0x49 · marking ED1 · 3000-piece reel.
ADS1110A2IDBVT: Address 0x4A · marking ED2 · 250-piece reel.
ADS1110A2IDBVR: Address 0x4A · marking ED2 · 3000-piece reel.
ADS1110A3IDBVT: Address 0x4B · marking ED3 · 250-piece reel.
ADS1110A3IDBVR: Address 0x4B · marking ED3 · 3000-piece reel.
ADS1110A4IDBVT: Address 0x4C · marking ED4 · 250-piece reel.
ADS1110A4IDBVR: Address 0x4C · marking ED4 · 3000-piece reel.
ADS1110A5IDBVT: Address 0x4D · marking ED5 · 250-piece reel.
ADS1110A5IDBVR: Address 0x4D · marking ED5 · 3000-piece reel.
ADS1110A6IDBVT: Address 0x4E · marking ED6 · 250-piece reel.
ADS1110A6IDBVR: Address 0x4E · marking ED6 · 3000-piece reel.
ADS1110A7IDBVT: Address 0x4F · marking ED7 · 250-piece reel.
ADS1110A7IDBVR: Address 0x4F · marking ED7 · 3000-piece reel.

ADS1110 manufacturer documentation· Texas Instruments SBAS276A Rev. A, pp. 2–3 and 6–12.