Products

CT81xx

Digital TMR Latch/Analog TMR Sensor

Omnipolar/Bipolar/Unipolar Digital Latch

The CT81xx is a product family of Tunnel Magneto-resistance (TMR) digital latches and analog sensors that are designed for consumer and industrial applications. They are based on Crocus Technology’s patented XtremeSense® TMR technology with integrated CMOS process to provide a monolithic solution for superior sensing performance. The CT81xx series of magnetic sensors offer stable magnetic operation over the operating temperature range. With very high sensitivity, the CT81xx products enable larger air gaps or smaller size/lower cost magnets to be used in systems while also drawing supply current as low as 110 nA. As such, these magnetic sensors are ideal for battery operated products where minimal current consumption is required. The outputs for both the digital latches and analog sensors are ratio-metric which provide greater design flexibility when interfacing with a variety of micro controllers.

Available in an industry standard 3-lead SOT23, 5-lead SOT23 and small form factor 4-lead LGA packages to support both consumer and industrial applications.

Product features and performance​

  • High Sensitivity: BOP/BRP = ±0.9 mT/±0.5 mT
  • Sensor Polarity
    • Omnipolar – CT813x & CT815x
    • Bipolar – CT812x
    • Unipolar – CT811x
  • Current Consumption: as Low as 110 nA @ VDD = 1.8 V and fS = 2 Hz
  • Digital CMOS Outputs:
    • Push-pull
    • Open Drain
  • Supply Voltage: 1.7 V to 5.5 V
  • Under Voltage Lock-out (UVLO)
  • Low Profile and Small Form Factor Packages that are ROHS and Green Compliant:
    • 3-lead SOT23
    • 5-lead SOT23
    • 4-lead LGA, 1.45 x 1.45 x 0.44 mm
ID Crocus Part Number Sensor Type Polarity Min. Supply Voltage (V) Max. Supply Voltage (V) Bₒₚ (mT) Bᵣₚ (mT) Sampling Frequency (Hz) Average Supply Current @ VDD = 3.3V (µA) Typ. Sensitivity (mV/V/mT) Max. Lineairty Error (% FS) Max. Corrected Angular Error (°) Typ. Offset Voltage (mV/V) Min. Field (mT) Max. Field (mT) Output Type TCS (ppm/°C) Temperature Range (°C) Package Type
1 CT8111BK-IS3 Digital Switch Unipolar 1.7 5.5 3.0 2.0 10 0.19 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +85 SOT23-3
2 CT8111BK-HS3 Digital Switch Unipolar 1.7 5.5 3.0 2.0 10 0.19 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +125 SOT23-3
3 CT8111BH-IS3 Digital Switch Unipolar 1.7 5.5 3.0 2.0 10,000 45.00 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +85 SOT23-3
4 CT8111BH-HS3 Digital Switch Unipolar 1.7 5.5 3.0 2.0 10,000 45.00 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +125 SOT23-3
5 CT8111DK-IS3 Digital Switch Unipolar 1.7 5.5 1.5 1.0 10 0.19 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +85 SOT23-3
6 CT8111DK-HS3 Digital Switch Unipolar 1.7 5.5 1.5 1.0 10 0.19 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +125 SOT23-3
7 CT8111DT-IS3 Digital Switch Unipolar 1.7 5.5 1.5 1.0 20 0.22 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +85 SOT23-3
8 CT8111DT-HS3 Digital Switch Unipolar 1.7 5.5 1.5 1.0 20 0.22 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +125 SOT23-3
9 CT8112BK-IS3 Digital Switch Unipolar 1.7 5.5 3.0 2.0 10 0.19 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
10 CT8112BK-HS3 Digital Switch Unipolar 1.7 5.5 3.0 2.0 10 0.19 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
11 CT8112DK-IS3 Digital Switch Unipolar 1.7 5.5 1.5 1.0 10 0.19 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
12 CT8112DK-HS3 Digital Switch Unipolar 1.7 5.5 1.5 1.0 10 0.19 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
13 CT8112DT-IS3 Digital Switch Unipolar 1.7 5.5 1.5 1.0 20 0.22 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
14 CT8112DT-HS3 Digital Switch Unipolar 1.7 5.5 1.5 1.0 20 0.22 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
15 CT8122AN-IS3 Digital Switch Bipolar 1.7 5.5 1.0 -1.0 500 2.40 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
16 CT8122AN-HS3 Digital Switch Bipolar 1.7 5.5 1.0 -1.0 500 2.40 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
17 CT8122AM-IS3 Digital Switch Bipolar 1.7 5.5 1.0 -1.0 2,500 11.50 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
18 CT8122AM-HS3 Digital Switch Bipolar 1.7 5.5 1.0 -1.0 2,500 11.50 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
19 CT8131BV-IL4 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 2 0.14 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +85 LGA-4
20 CT8131BV-HL4 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 2 0.14 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +125 LGA-4
21 CT8131BV-IS3 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 2 0.14 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +85 SOT23-3
22 CT8131BV-HS3 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 2 0.14 0.0 0.0 0.0 0 0 200 Open Drain 0 -40 to +125 SOT23-3
23 CT8132BH-IS3 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 10,000 45.00 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
24 CT8132BH-HS3 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 10,000 45.00 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
25 CT8132BL-IS3 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 250 1.30 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
26 CT8132BL-HS3 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 250 1.30 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
27 CT8132BV-IL4 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 2 0.14 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 LGA-4
28 CT8132BV-HL4 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 2 0.14 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 LGA-4
29 CT8132BV-IS3 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 2 0.14 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
30 CT8132BV-HS3 Digital Switch Omnipolar 1.7 5.5 3.0 2.0 2 0.14 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
31 CT8132DM-IS3 Digital Switch Omnipolar 1.7 5.5 1.5 1.0 2,500 11.50 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
32 CT8132DM-HS3 Digital Switch Omnipolar 1.7 5.5 1.5 1.0 2,500 11.50 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
33 CT8132EK-IS3 Digital Switch Omnipolar 1.7 5.5 7.0 5.0 10 0.19 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +85 SOT23-3
34 CT8132EK-HS3 Digital Switch Omnipolar 1.7 5.5 7.0 5.0 10 0.19 0.0 0.0 0.0 0 0 200 Push-pull 0 -40 to +125 SOT23-3
35 CT8132SK-IL4 Digital Switch Omnipolar 1.7 5.5 0.9 0.5 10 0.19 0.0 0.0 0.0 0 0 60 Push-pull 0 -40 to +85 LGA-4
36 CT8132SK-HL4 Digital Switch Omnipolar 1.7 5.5 0.9 0.5 10 0.19 0.0 0.0 0.0 0 0 60 Push-pull 0 -40 to +125 LGA-4
37 CT8132SK-IS3 Digital Switch Omnipolar 1.7 5.5 0.9 0.5 10 0.19 0.0 0.0 0.0 0 0 60 Push-pull 0 -40 to +85 SOT23-3
38 CT8132SK-HS3 Digital Switch Omnipolar 1.7 5.5 0.9 0.5 10 0.19 0.0 0.0 0.0 0 0 60 Push-pull 0 -40 to +125 SOT23-3
39 CT8132SL-IS3 Digital Switch Omnipolar 1.7 5.5 0.9 0.5 250 1.30 0.0 0.0 0.0 0 0 60 Push-pull 0 -40 to +85 SOT23-3
40 CT8132SL-HS3 Digital Switch Omnipolar 1.7 5.5 0.9 0.5 250 1.30 0.0 0.0 0.0 0 0 60 S&H Analog 0 -40 to +125 SOT23-3
41 CT8150PC-IS3 Analog Sensor Omnipolar 1.7 5.5 0.0 0.0 100 1.50 0.0 0.0 0.0 0 -8 8 S&H Analog 0 -40 to +85 SOT23-3
42 CT8150PC-HS3 Analog Sensor Omnipolar 1.7 5.5 0.0 0.0 100 1.50 0.0 0.0 0.0 0 -8 8 S&H Analog 0 -40 to +125 SOT23-3
43 CT8150PC-IL4 Analog Sensor Omnipolar 1.7 5.5 0.0 0.0 100 1.50 0.0 0.0 0.0 0 -8 8 S&H Analog 0 -40 to +85 LGA-4
44 CT8150PC-HL4 Analog Sensor Omnipolar 1.7 5.5 0.0 0.0 100 0.15 0.0 0.0 0.0 0 -8 8 S&H Analog 0 -40 to +125 LGA-4
45 CT8152PC-IS5 Analog Sensor Omnipolar 1.7 5.5 6.0 4.0 100 0.20 50.0 0.0 0.0 0 -8 8 S&H Analog + Push-pull 0 -40 to +85 SOT23-5
46 CT8152PC-HS5 Analog Sensor Omnipolar 1.7 5.5 6.0 4.0 100 0.20 50.0 0.0 0.0 0 -8 8 S&H Analog + Push-pull 0 -40 to +125 SOT23-5
47 CT8152PC-IL4 Analog Sensor Omnipolar 1.7 5.5 6.0 4.0 100 0.20 50.0 0.0 0.0 0 -8 8 S&H Analog + Push-pull 0 -40 to +85 LGA-4
48 CT8152PC-HL4 Analog Sensor Omnipolar 1.7 5.5 6.0 4.0 100 0.00 50.0 0.0 0.0 0 -8 8 S&H Analog + Push-pull 0 -40 to +125 LGA-4
Sensor Type Polarity Sampling Frequency (Hz) Typ. Sensitivity (mV/V/mT) Max. Lineairty Error (% FS) Temperature Range (°C) Package Type

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